@misc{Beck2011,
  type      = {Master Thesis},
  author    = {Beck, Anne},
  title     = {Hegemonie und Geschlecht in Bettine von Arnims "Dies Buch geh{\"o}rt dem K{\"o}nig" im Kontext ausgew{\"a}hlter Frauenromane am Beginn des 19. Jahrhunderts},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-64273},
  school      = {Universit{\"a}t Potsdam},
  year      = {2011},
  abstract  = {Vergleich von Bettine von Arnims "Dies Buch geh{\"o}rt dem K{\"o}nig" (1843) mit Sophie von La Roches "Erscheinungen am See Oneida" (1798) und Henriette Fr{\"o}lichs "Virginia oder Die Kolonie von Kentucky" (1820). Die Texte werden ausgehend von der Annahme untersucht, dass Macht ein asymmetrisches Verh{\"a}ltnis ist, das durch Konsens entsteht (Laclau und Mouffe), und auch Geschlechterverh{\"a}ltnisse als Machtverh{\"a}ltnisse verst{\"a}ndlich werden, da Geschlecht keine nat{\"u}rliche Gegebenheit, sondern ein gesellschaftliches Konstrukt ist (Butler). Dementsprechend werden die Texte in einem Spannungsfeld von Anpassung und Subversion verstanden.},
  language  = {de}
}
@article{PuschmannDriessleinBecketal.2020,
  author    = {Puschmann, Anne-Katrin and Drießlein, David and Beck, Heidrun and Arampatzis, Adamantios and Moreno Catal{\´a}, Maria and Schiltenwolf, Marcus and Mayer, Frank and Wippert, Pia-Maria},
  title     = {Stress and Self-Efficacy as Long-Term Predictors for Chronic Low Back Pain},
  series = {Journal of Pain Research},
  volume    = {13},
  journal   = {Journal of Pain Research},
  publisher = {Dove Medical Press},
  address   = {Albany, Auckland},
  issn      = {1178-7090},
  doi       = {10.2147/JPR.S223893},
  pages     = {613 -- 621},
  year      = {2020},
  abstract  = {Purpose: Psychosocial variables are known risk factors for the development and chronification of low back pain (LBP). Psychosocial stress is one of these risk factors. Therefore, this study aims to identify the most important types of stress predicting LBP. Self-efficacy was included as a potential protective factor related to both, stress and pain. Participants and Methods: This prospective observational study assessed n = 1071 subjects with low back pain over 2 years. Psychosocial stress was evaluated in a broad manner using instruments assessing perceived stress, stress experiences in work and social contexts, vital exhaustion and life-event stress. Further, self-efficacy and pain (characteristic pain intensity and disability) were assessed. Using least absolute shrinkage selection operator regression, important predictors of characteristic pain intensity and pain-related disability at 1-year and 2-years follow-up were analyzed. Results: The final sample for the statistic procedure consisted of 588 subjects (age: 39.2 (± 13.4) years; baseline pain intensity: 27.8 (± 18.4); disability: 14.3 (± 17.9)). In the 1-year follow-up, the stress types "tendency to worry", "social isolation", "work discontent" as well as vital exhaustion and negative life events were identified as risk factors for both pain intensity and pain-related disability. Within the 2-years follow-up, Lasso models identified the stress types "tendency to worry", "social isolation", "social conflicts", and "perceived long-term stress" as potential risk factors for both pain intensity and disability. Furthermore, "self-efficacy" ("internality", "self-concept") and "social externality" play a role in reducing pain-related disability. Conclusion: Stress experiences in social and work-related contexts were identified as important risk factors for LBP 1 or 2 years in the future, even in subjects with low initial pain levels. Self-efficacy turned out to be a protective factor for pain development, especially in the long-term follow-up. Results suggest a differentiation of stress types in addressing psychosocial factors in research, prevention and therapy approaches.},
  language  = {en}
}
@misc{PuschmannDriessleinBecketal.2020,
  author    = {Puschmann, Anne-Katrin and Drießlein, David and Beck, Heidrun and Arampatzis, Adamantios and Moreno Catal{\´a}, Maria and Schiltenwolf, Marcus and Mayer, Frank and Wippert, Pia-Maria},
  title     = {Stress and Self-Efficacy as Long-Term Predictors for Chronic Low Back Pain},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-46013},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-460134},
  pages     = {613 -- 621},
  year      = {2020},
  abstract  = {Purpose: Psychosocial variables are known risk factors for the development and chronification of low back pain (LBP). Psychosocial stress is one of these risk factors. Therefore, this study aims to identify the most important types of stress predicting LBP. Self-efficacy was included as a potential protective factor related to both, stress and pain. Participants and Methods: This prospective observational study assessed n = 1071 subjects with low back pain over 2 years. Psychosocial stress was evaluated in a broad manner using instruments assessing perceived stress, stress experiences in work and social contexts, vital exhaustion and life-event stress. Further, self-efficacy and pain (characteristic pain intensity and disability) were assessed. Using least absolute shrinkage selection operator regression, important predictors of characteristic pain intensity and pain-related disability at 1-year and 2-years follow-up were analyzed. Results: The final sample for the statistic procedure consisted of 588 subjects (age: 39.2 (± 13.4) years; baseline pain intensity: 27.8 (± 18.4); disability: 14.3 (± 17.9)). In the 1-year follow-up, the stress types "tendency to worry", "social isolation", "work discontent" as well as vital exhaustion and negative life events were identified as risk factors for both pain intensity and pain-related disability. Within the 2-years follow-up, Lasso models identified the stress types "tendency to worry", "social isolation", "social conflicts", and "perceived long-term stress" as potential risk factors for both pain intensity and disability. Furthermore, "self-efficacy" ("internality", "self-concept") and "social externality" play a role in reducing pain-related disability. Conclusion: Stress experiences in social and work-related contexts were identified as important risk factors for LBP 1 or 2 years in the future, even in subjects with low initial pain levels. Self-efficacy turned out to be a protective factor for pain development, especially in the long-term follow-up. Results suggest a differentiation of stress types in addressing psychosocial factors in research, prevention and therapy approaches.},
  language  = {en}
}
@misc{VolkertBeckCederholmetal.2019,
  author    = {Volkert, Dorothee and Beck, Anne Marie and Cederholm, Tommy and Cereda, Emanuele and Cruz-Jentoft, Alfonso J. and Goisser, Sabine and de Groot, Lisette and Grosshauser, Franz and Kiesswetter, Eva and Norman, Kristina and Pourhassan, Maryam and Reinders, Ilse and Roberts, Helen C. and Rolland, Yves and Schneider, St{\´e}phane M. and Sieber, Cornel and Thiem, Ulrich and Visser, Marjolein and Wijnhoven, Hanneke and Wirth, Rainer},
  title     = {Management of malnutrition in older patients},
  series = {Journal of Clinical Medicine : open access journal},
  volume    = {8},
  journal   = {Journal of Clinical Medicine : open access journal},
  number    = {7},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2077-0383},
  doi       = {10.3390/jcm8070974},
  pages     = {16},
  year      = {2019},
  abstract  = {Malnutrition is widespread in older people and represents a major geriatric syndrome with multifactorial etiology and severe consequences for health outcomes and quality of life. The aim of the present paper is to describe current approaches and evidence regarding malnutrition treatment and to highlight relevant knowledge gaps that need to be addressed. Recently published guidelines of the European Society for Clinical Nutrition and Metabolism (ESPEN) provide a summary of the available evidence and highlight the wide range of different measures that can be taken—from the identification and elimination of potential causes to enteral and parenteral nutrition—depending on the patient's abilities and needs. However, more than half of the recommendations therein are based on expert consensus because of a lack of evidence, and only three are concern patient-centred outcomes. Future research should further clarify the etiology of malnutrition and identify the most relevant causes in order to prevent malnutrition. Based on limited and partly conflicting evidence and the limitations of existing studies, it remains unclear which interventions are most effective in which patient groups, and if specific situations, diseases or etiologies of malnutrition require specific approaches. Patient-relevant outcomes such as functionality and quality of life need more attention, and research methodology should be harmonised to allow for the comparability of studies.},
  language  = {en}
}
@misc{PuschmannBeckSchiltenwolfetal.2017,
  author    = {Puschmann, Anne-Kathrin and Beck, Heidrun and Schiltenwolf, Marcus and Wippert, Pia-Maria and Mayer, Frank},
  title     = {Distress in a longitudinal study of a population with nonspecific low back pain},
  series = {Psychosomatic medicine},
  volume    = {79},
  journal   = {Psychosomatic medicine},
  publisher = {Lippincott Williams \& Wilkins},
  address   = {Philadelphia},
  issn      = {0033-3174},
  pages     = {A20 -- A21},
  year      = {2017},
  language  = {en}
}
@phdthesis{Beck2011,
  author    = {Beck, Anne},
  title     = {Hegemonie und Geschlecht in Bettine von Arnims "Dieses Buch geh{\"o}rt dem K{\"o}nig" im Kontext ausgew{\"a}hlter Frauenromane am Beginn des 19. Jahrhunderts},
  address   = {Potsdam},
  pages     = {Online-Ressource (PDF-Datei: 91 S., 2.168 kB)},
  year      = {2011},
  language  = {de}
}
@misc{BeckBallesterosMejiaBuchmannetal.2012,
  author    = {Beck, Jan and Ballesteros-Mejia, Liliana and Buchmann, Carsten M. and Dengler, J{\"u}rgen and Fritz, Susanne A. and Gruber, Bernd and Hof, Christian and Jansen, Florian and Knapp, Sonja and Kreft, Holger and Schneider, Anne-Kathrin and Winter, Marten and Dormann, Carsten F.},
  title     = {What's on the horizon for macroecology?},
  series = {Ecography : pattern and diversity in ecology ; research papers forum},
  volume    = {35},
  journal   = {Ecography : pattern and diversity in ecology ; research papers forum},
  number    = {8},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {0906-7590},
  doi       = {10.1111/j.1600-0587.2012.07364.x},
  pages     = {673 -- 683},
  year      = {2012},
  abstract  = {Over the last two decades, macroecology the analysis of large-scale, multi-species ecological patterns and processes has established itself as a major line of biological research. Analyses of statistical links between environmental variables and biotic responses have long and successfully been employed as a main approach, but new developments are due to be utilized. Scanning the horizon of macroecology, we identified four challenges that will probably play a major role in the future. We support our claims by examples and bibliographic analyses. 1) Integrating the past into macroecological analyses, e.g. by using paleontological or phylogenetic information or by applying methods from historical biogeography, will sharpen our understanding of the underlying reasons for contemporary patterns. 2) Explicit consideration of the local processes that lead to the observed larger-scale patterns is necessary to understand the fine-grain variability found in nature, and will enable better prediction of future patterns (e.g. under environmental change conditions). 3) Macroecology is dependent on large-scale, high quality data from a broad spectrum of taxa and regions. More available data sources need to be tapped and new, small-grain large-extent data need to be collected. 4) Although macroecology already lead to mainstreaming cutting-edge statistical analysis techniques, we find that more sophisticated methods are needed to account for the biases inherent to sampling at large scale. Bayesian methods may be particularly suitable to address these challenges. To continue the vigorous development of the macroecological research agenda, it is time to address these challenges and to avoid becoming too complacent with current achievements.},
  language  = {en}
}
@article{MuellerNanovaGlaseretal.2016,
  author    = {Mueller, Lars and Nanova, Diana and Glaser, Tobias and Beck, Sebastian and Pucci, Annemarie and Kast, Anne K. and Schroeder, Rasmus R. and Mankel, Eric and Pingel, Patrick and Neher, Dieter and Kowalsky, Wolfgang and Lovrincic, Robert},
  title     = {Charge-Transfer-Solvent Interaction Predefines Doping Efficiency in p-Doped P3HT Films},
  series = {Chemistry of materials : a publication of the American Chemical Society},
  volume    = {28},
  journal   = {Chemistry of materials : a publication of the American Chemical Society},
  publisher = {American Chemical Society},
  address   = {Washington},
  issn      = {0897-4756},
  doi       = {10.1021/acs.chemmater.6b01629},
  pages     = {4432 -- 4439},
  year      = {2016},
  abstract  = {Efficient electrical doping of organic semiconductors is a necessary prerequisite for the fabrication of high performance organic electronic devices. In this work, we study p-type doping of poly(3-hexylthiophene) (P3HT) with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F(4)TCNQ) spin-cast from two different solvents. Using electron diffraction, we find strong dopant-induced pi-pi-stacking for films from the solvent chloroform, but not from chlorobenzene. This image is confirmed and expanded by the analysis of vibrational features of P3HT and polaron absorptions using optical spectroscopy. Here, a red-shifted polaron absorption is found in doped films from chloroform, caused by a higher conjugation length of the polymer backbone. These differences result in a higher conductivity of films from chloroform. We use optical spectroscopy on the corresponding blend solutions to shed light on the origin of this effect and propose a model to explain why solutions of doped P3HT reveal more aggregation of charged molecules in chlorobenzene, whereas more order is finally observed in dried films from chloroform. Our study emphasizes the importance of solvent parameters exceeding the bare solubility of pure dopant and host material for the preparation of highly conductive doped films.},
  language  = {en}
}
@misc{WippertPuschmannDriessleinetal.2017,
  author    = {Wippert, Pia-Maria and Puschmann, Anne-Katrin and Drießlein, David and Arampatzis, Adamantios and Banzer, Winfried and Beck, Heidrun and Schiltenwolf, Marcus and Schmidt, Hendrik and Schneider, Christian and Mayer, Frank},
  title     = {Development of a risk stratification and prevention index for stratified care in chronic low back pain. Focus: yellow flags (MiSpEx network)},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-403424},
  pages     = {11},
  year      = {2017},
  abstract  = {Introduction: Chronic low back pain (LBP) is a major cause of disability; early diagnosis and stratification of care remain challenges. Objectives: This article describes the development of a screening tool for the 1-year prognosis of patients with high chronic LBP risk (risk stratification index) and for treatment allocation according to treatment-modifiable yellow flag indicators (risk prevention indices, RPI-S). Methods: Screening tools were derived from a multicentre longitudinal study (n = 1071, age >18, intermittent LBP). The greatest prognostic predictors of 4 flag domains ("pain," "distress," "social-environment," "medical care-environment") were determined using least absolute shrinkage and selection operator regression analysis. Internal validity and prognosis error were evaluated after 1-year follow-up. Receiver operating characteristic curves for discrimination (area under the curve) and cutoff values were determined. Results: The risk stratification index identified persons with increased risk of chronic LBP and accurately estimated expected pain intensity and disability on the Pain Grade Questionnaire (0-100 points) up to 1 year later with an average prognosis error of 15 points. In addition, 3-risk classes were discerned with an accuracy of area under the curve = 0.74 (95\% confidence interval 0.63-0.85). The RPI-S also distinguished persons with potentially modifiable prognostic indicators from 4 flag domains and stratified allocation to biopsychosocial treatments accordingly. Conclusion: The screening tools, developed in compliance with the PROGRESS and TRIPOD statements, revealed good validation and prognostic strength. These tools improve on existing screening tools because of their utility for secondary preventions, incorporation of exercise effect modifiers, exact pain estimations, and personalized allocation to multimodal treatments.},
  language  = {en}
}
@article{WippertPuschmannDriessleinetal.2017,
  author    = {Wippert, Pia-Maria and Puschmann, Anne-Katrin and Drießlein, David and Arampatzis, Adamantios and Banzer, Winfried and Beck, Heidrun and Schiltenwolf, Marcus and Schmidt, Hendrik and Schneider, Christian and Mayer, Frank},
  title     = {Development of a risk stratification and prevention index for stratified care in chronic low back pain. Focus: yellow flags (MiSpEx network)},
  series = {Pain reports},
  volume    = {9},
  journal   = {Pain reports},
  publisher = {Wolters Kluwer Health},
  address   = {Riverwoods, IL},
  doi       = {10.1097/PR9.0000000000000623},
  pages     = {1 -- 11},
  year      = {2017},
  abstract  = {Introduction: Chronic low back pain (LBP) is a major cause of disability; early diagnosis and stratification of care remain challenges. Objectives: This article describes the development of a screening tool for the 1-year prognosis of patients with high chronic LBP risk (risk stratification index) and for treatment allocation according to treatment-modifiable yellow flag indicators (risk prevention indices, RPI-S). Methods: Screening tools were derived from a multicentre longitudinal study (n = 1071, age >18, intermittent LBP). The greatest prognostic predictors of 4 flag domains ("pain," "distress," "social-environment," "medical care-environment") were determined using least absolute shrinkage and selection operator regression analysis. Internal validity and prognosis error were evaluated after 1-year follow-up. Receiver operating characteristic curves for discrimination (area under the curve) and cutoff values were determined. Results: The risk stratification index identified persons with increased risk of chronic LBP and accurately estimated expected pain intensity and disability on the Pain Grade Questionnaire (0-100 points) up to 1 year later with an average prognosis error of 15 points. In addition, 3-risk classes were discerned with an accuracy of area under the curve = 0.74 (95\% confidence interval 0.63-0.85). The RPI-S also distinguished persons with potentially modifiable prognostic indicators from 4 flag domains and stratified allocation to biopsychosocial treatments accordingly. Conclusion: The screening tools, developed in compliance with the PROGRESS and TRIPOD statements, revealed good validation and prognostic strength. These tools improve on existing screening tools because of their utility for secondary preventions, incorporation of exercise effect modifiers, exact pain estimations, and personalized allocation to multimodal treatments.},
  language  = {en}
}
@misc{WippertDriessleinBecketal.2020,
  author    = {Wippert, Pia-Maria and Drießlein, David and Beck, Heidrun and Schneider, Christian and Puschmann, Anne-Katrin and Banzer, Winfried and Schiltenwolf, Marcus},
  title     = {The Feasibility and Effectiveness of a New Practical Multidisciplinary Treatment for Low-Back Pain},
  series = {Postprints der Universit{\"a}t Potsdam : Mathematisch Naturwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Mathematisch Naturwissenschaftliche Reihe},
  number    = {840},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-44581},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-445814},
  pages     = {17},
  year      = {2020},
  abstract  = {Low-back pain is a major health problem exacerbated by the fact that most treatments are not suitable for self-management in everyday life. Particularly, interdisciplinary programs consist of intensive therapy lasting several weeks. Additionally, therapy components are rarely coordinated regarding reinforcing effects, which would improve complaints in persons with higher pain. This study assesses the effectiveness of a self-management program, firstly for persons suffering from higher pain and secondly compared to regular routines. Study objectives were treated in a single-blind multicenter controlled trial. A total of n = 439 volunteers (age 18-65 years) were randomly assigned to a twelve-week multidisciplinary sensorimotor training (3-weeks-center- and 9-weeks-homebased) or control group. The primary outcome pain (Chronic-Pain-Grade) as well as mental health were assessed by questionnaires at baseline and follow-up (3/6/12/24 weeks, M2-M5). For statistical analysis, multiple linear regression models were used. N = 291 (age 39.7 ± 12.7 years, female = 61.1\%, 77\% CPG = 1) completed training (M1/M4/M5), showing a significantly stronger reduction of mental health complaints (anxiety, vital exhaustion) in people with higher than those with lower pain in multidisciplinary treatment. Compared to regular routines, the self-management-multidisciplinary treatment led to a clinically relevant reduction of pain-disability and significant mental health improvements. Low-cost exercise programs may provide enormous relief for therapeutic processes, rehabilitation aftercare, and thus, cost savings for the health system},
  language  = {en}
}
@misc{WippertPuschmannDriessleinetal.2020,
  author    = {Wippert, Pia-Maria and Puschmann, Anne-Katrin and Drießlein, David and Banzer, Winfried and Beck, Heidrun and Schiltenwolf, Marcus and Schneider, Christian and Mayer, Frank},
  title     = {Personalized treatment suggestions},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {690},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-47199},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-471993},
  pages     = {13},
  year      = {2020},
  abstract  = {Background: The back pain screening tool Risk-Prevention-Index Social (RPI-S) identifies the individual psychosocial risk for low back pain chronification and supports the allocation of patients at risk in additional multidisciplinary treatments. The study objectives were to evaluate (1) the prognostic validity of the RPI-S for a 6-month time frame and (2) the clinical benefit of the RPI-S. Methods: In a multicenter single-blind 3-armed randomized controlled trial, n = 660 persons (age 18-65 years) were randomly assigned to a twelve-week uni- or multidisciplinary exercise intervention or control group. Psychosocial risk was assessed by the RPI-S domain social environment (RPI-SSE) and the outcome pain by the Chronic Pain Grade Questionnaire (baseline M1, 12-weeks M4, 24-weeks M5). Prognostic validity was quantified by the root mean squared error (RMSE) within the control group. The clinical benefit of RPI-SSE was calculated by repeated measures ANOVA in intervention groups. Results: A subsample of n = 274 participants (mean = 38.0 years, SD 13.1) was analyzed, of which 30\% were classified at risk in their psychosocial profile. The half-year prognostic validity was good (RMSE for disability of 9.04 at M4 and of 9.73 at M5; RMSE for pain intensity of 12.45 at M4 and of 14.49 at M5). People at risk showed significantly stronger reduction in pain disability and intensity at M4/M5, if participating in a multidisciplinary exercise treatment. Subjects at no risk showed a smaller reduction in pain disability in both interventions and no group differences for pain intensity. Regarding disability due to pain, around 41\% of the sample would gain an unfitted treatment without the back pain screening. Conclusion: The RPI-SSE prognostic validity demonstrated good applicability and a clinical benefit confirmed by a clear advantage of an individualized treatment possibility.},
  language  = {en}
}
@article{BaltaBeylergilBeckDesernoetal.2017,
  author    = {Balta Beylergil, Sinem and Beck, Anne and Deserno, Lorenz and Lorenz, Robert C. and Rapp, Michael Armin and Schlagenhauf, Florian and Heinz, Andreas and Obermayer, Klaus},
  title     = {Dorsolateral prefrontal cortex contributes to the impaired behavioral adaptation in alcohol dependence},
  series = {NeuroImage: Clinical : a journal of diseases affecting the nervous system},
  volume    = {15},
  journal   = {NeuroImage: Clinical : a journal of diseases affecting the nervous system},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {2213-1582},
  doi       = {10.1016/j.nicl.2017.04.010},
  pages     = {80 -- 94},
  year      = {2017},
  abstract  = {Substance-dependent individuals often lack the ability to adjust decisions flexibly in response to the changes in reward contingencies. Prediction errors (PEs) are thought to mediate flexible decision-making by updating the reward values associated with available actions. In this study, we explored whether the neurobiological correlates of PEs are altered in alcohol dependence. Behavioral, and functional magnetic resonance imaging (fMRI) data were simultaneously acquired from 34 abstinent alcohol-dependent patients (ADP) and 26 healthy controls (HC) during a probabilistic reward-guided decision-making task with dynamically changing reinforcement contingencies. A hierarchical Bayesian inference method was used to fit and compare learning models with different assumptions about the amount of task-related information subjects may have inferred during the experiment. Here, we observed that the best-fitting model was a modified Rescorla-Wagner type model, the "double-update" model, which assumes that subjects infer the knowledge that reward contingencies are anti-correlated, and integrate both actual and hypothetical outcomes into their decisions. Moreover, comparison of the best-fitting model's parameters showed that ADP were less sensitive to punishments compared to HC. Hence, decisions of ADP after punishments were loosely coupled with the expected reward values assigned to them. A correlation analysis between the model-generated PEs and the fMRI data revealed a reduced association between these PEs and the BOLD activity in the dorsolateral prefrontal cortex (DLPFC) of ADP. A hemispheric asymmetry was observed in the DLPFC when positive and negative PE signals were analyzed separately. The right DLPFC activity in ADP showed a reduced correlation with positive PEs. On the other hand, ADP, particularly the patients with high dependence severity, recruited the left DLPFC to a lesser extent than HC for processing negative PE signals. These results suggest that the DLPFC, which has been linked to adaptive control of action selection, may play an important role in cognitive inflexibility observed in alcohol dependence when reinforcement contingencies change. Particularly, the left DLPFC may contribute to this impaired behavioral adaptation, possibly by impeding the extinction of the actions that no longer lead to a reward.},
  language  = {en}
}
@misc{HeinzKieferSmolkaetal.2020,
  author    = {Heinz, Andreas and Kiefer, Falk and Smolka, Michael N. and Endrass, Tanja and Beste, Christian and Beck, Anne and Liu, Shuyan and Genauck, Alexander and Romund, Lydia and Rapp, Michael Armin and Tost, Heike and Spanagel, Rainer},
  title     = {Addiction research consortium: losing and regaining control over drug intake (ReCoDe) - from trajectories to mechanisms and interventions},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {2},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-52597},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-525972},
  pages     = {8},
  year      = {2020},
  abstract  = {One of the major risk factors for global death and disability is alcohol, tobacco, and illicit drug use. While there is increasing knowledge with respect to individual factors promoting the initiation and maintenance of substance use disorders (SUDs), disease trajectories involved in losing and regaining control over drug intake (ReCoDe) are still not well described. Our newly formed German Collaborative Research Centre (CRC) on ReCoDe has an interdisciplinary approach funded by the German Research Foundation (DFG) with a 12-year perspective. The main goals of our research consortium are (i) to identify triggers and modifying factors that longitudinally modulate the trajectories of losing and regaining control over drug consumption in real life, (ii) to study underlying behavioral, cognitive, and neurobiological mechanisms, and (iii) to implicate mechanism-based interventions. These goals will be achieved by: (i) using mobile health (m-health) tools to longitudinally monitor the effects of triggers (drug cues, stressors, and priming doses) and modify factors (eg, age, gender, physical activity, and cognitive control) on drug consumption patterns in real-life conditions and in animal models of addiction; (ii) the identification and computational modeling of key mechanisms mediating the effects of such triggers and modifying factors on goal-directed, habitual, and compulsive aspects of behavior from human studies and animal models; and (iii) developing and testing interventions that specifically target the underlying mechanisms for regaining control over drug intake.},
  language  = {en}
}
@article{HeinzKieferSmolkaetal.2020,
  author    = {Heinz, Andreas and Kiefer, Falk and Smolka, Michael N. and Endrass, Tanja and Beste, Christian and Beck, Anne and Liu, Shuyan and Genauck, Alexander and Romund, Lydia and Rapp, Michael Armin and Tost, Heike and Spanagel, Rainer},
  title     = {Addiction research consortium: losing and regaining control over drug intake (ReCoDe) - from trajectories to mechanisms and interventions},
  series = {Addiction Biology},
  volume    = {25},
  journal   = {Addiction Biology},
  number    = {2},
  publisher = {John Wiley \& Sons, Inc.},
  address   = {New Jersey},
  pages     = {6},
  year      = {2020},
  abstract  = {One of the major risk factors for global death and disability is alcohol, tobacco, and illicit drug use. While there is increasing knowledge with respect to individual factors promoting the initiation and maintenance of substance use disorders (SUDs), disease trajectories involved in losing and regaining control over drug intake (ReCoDe) are still not well described. Our newly formed German Collaborative Research Centre (CRC) on ReCoDe has an interdisciplinary approach funded by the German Research Foundation (DFG) with a 12-year perspective. The main goals of our research consortium are (i) to identify triggers and modifying factors that longitudinally modulate the trajectories of losing and regaining control over drug consumption in real life, (ii) to study underlying behavioral, cognitive, and neurobiological mechanisms, and (iii) to implicate mechanism-based interventions. These goals will be achieved by: (i) using mobile health (m-health) tools to longitudinally monitor the effects of triggers (drug cues, stressors, and priming doses) and modify factors (eg, age, gender, physical activity, and cognitive control) on drug consumption patterns in real-life conditions and in animal models of addiction; (ii) the identification and computational modeling of key mechanisms mediating the effects of such triggers and modifying factors on goal-directed, habitual, and compulsive aspects of behavior from human studies and animal models; and (iii) developing and testing interventions that specifically target the underlying mechanisms for regaining control over drug intake.},
  language  = {en}
}
@article{HaegeleSchlagenhaufRappetal.2015,
  author    = {Haegele, Claudia and Schlagenhauf, Florian and Rapp, Michael Armin and Sterzer, Philipp and Beck, Anne and Bermpohl, Felix and Stoy, Meline and Stroehle, Andreas and Wittchen, Hans-Ulrich and Dolan, Raymond J. and Heinz, Andreas},
  title     = {Dimensional psychiatry: reward dysfunction and depressive mood across psychiatric disorders},
  series = {Psychopharmacology},
  volume    = {232},
  journal   = {Psychopharmacology},
  number    = {2},
  publisher = {Springer},
  address   = {New York},
  issn      = {0033-3158},
  doi       = {10.1007/s00213-014-3662-7},
  pages     = {331 -- 341},
  year      = {2015},
  abstract  = {A dimensional approach in psychiatry aims to identify core mechanisms of mental disorders across nosological boundaries. We compared anticipation of reward between major psychiatric disorders, and investigated whether reward anticipation is impaired in several mental disorders and whether there is a common psychopathological correlate (negative mood) of such an impairment. During reward anticipation, we observed significant group differences in ventral striatal (VS) activation: patients with schizophrenia, alcohol dependence, and major depression showed significantly less ventral striatal activation compared to healthy controls. Depressive symptoms correlated with dysfunction in reward anticipation regardless of diagnostic entity. There was no significant correlation between anxiety symptoms and VS functional activation. Our findings demonstrate a neurobiological dysfunction related to reward prediction that transcended disorder categories and was related to measures of depressed mood. The findings underline the potential of a dimensional approach in psychiatry and strengthen the hypothesis that neurobiological research in psychiatric disorders can be targeted at core mechanisms that are likely to be implicated in a range of clinical entities.},
  language  = {en}
}
@misc{HeinzBeckRapp2016,
  author    = {Heinz, Andreas and Beck, Anne and Rapp, Michael Armin},
  title     = {Alcohol as an Environmental Mortality Hazard},
  series = {JAMA psychiatry},
  volume    = {73},
  journal   = {JAMA psychiatry},
  publisher = {American Veterinary Medical Association},
  address   = {Chicago},
  issn      = {2168-622X},
  doi       = {10.1001/jamapsychiatry.2016.0399},
  pages     = {549 -- 550},
  year      = {2016},
  language  = {en}
}
@misc{FriedelSchlagenhaufBecketal.2014,
  author    = {Friedel, Eva and Schlagenhauf, Florian and Beck, Anne and Dolan, Raymond J. and Huys, Quentin J. M. and Rapp, Michael Armin and Heinz, Andreas},
  title     = {The effects of life stress and neural learning signals on fluid intelligence},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {621},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-43514},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435140},
  pages     = {35 -- 43},
  year      = {2014},
  abstract  = {Fluid intelligence (fluid IQ), defined as the capacity for rapid problem solving and behavioral adaptation, is known to be modulated by learning and experience. Both stressful life events (SLES) and neural correlates of learning [specifically, a key mediator of adaptive learning in the brain, namely the ventral striatal representation of prediction errors (PE)] have been shown to be associated with individual differences in fluid IQ. Here, we examine the interaction between adaptive learning signals (using a well-characterized probabilistic reversal learning task in combination with fMRI) and SLES on fluid IQ measures. We find that the correlation between ventral striatal BOLD PE and fluid IQ, which we have previously reported, is quantitatively modulated by the amount of reported SLES. Thus, after experiencing adversity, basic neuronal learning signatures appear to align more closely with a general measure of flexible learning (fluid IQ), a finding complementing studies on the effects of acute stress on learning. The results suggest that an understanding of the neurobiological correlates of trait variables like fluid IQ needs to take socioemotional influences such as chronic stress into account.},
  language  = {en}
}
@inproceedings{HaegeleFriedelSchlagenhaufetal.2014,
  author    = {Haegele, Claudia and Friedel, Eva and Schlagenhauf, Florian and Sterzer, Philipp and Beck, Anne and Bermpohl, Felix and Rapp, Michael Armin and Stoy, Meline and Stroehle, Andreas and Dolan, Raymond J. and Heinz, Andreas},
  title     = {Reward expectation and affective responses across psychiatric disorders - A dimensional approach},
  series = {Biological psychiatry : a journal of psychiatric neuroscience and therapeutics ; a publication of the Society of Biological Psychiatry},
  volume    = {75},
  booktitle = {Biological psychiatry : a journal of psychiatric neuroscience and therapeutics ; a publication of the Society of Biological Psychiatry},
  number    = {9},
  publisher = {Elsevier},
  address   = {New York},
  issn      = {0006-3223},
  pages     = {91S -- 92S},
  year      = {2014},
  language  = {en}
}
@article{FriedelSchlagenhaufBecketal.2015,
  author    = {Friedel, Eva and Schlagenhauf, Florian and Beck, Anne and Dolan, Raymond J. and Huys, Quentin J. M. and Rapp, Michael Armin and Heinz, Andreas},
  title     = {The effects of life stress and neural learning signals on fluid intelligence},
  series = {European archives of psychiatry and clinical neuroscience : official organ of the German Society for Biological Psychiatry},
  volume    = {265},
  journal   = {European archives of psychiatry and clinical neuroscience : official organ of the German Society for Biological Psychiatry},
  number    = {1},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {0940-1334},
  doi       = {10.1007/s00406-014-0519-3},
  pages     = {35 -- 43},
  year      = {2015},
  abstract  = {Fluid intelligence (fluid IQ), defined as the capacity for rapid problem solving and behavioral adaptation, is known to be modulated by learning and experience. Both stressful life events (SLES) and neural correlates of learning [specifically, a key mediator of adaptive learning in the brain, namely the ventral striatal representation of prediction errors (PE)] have been shown to be associated with individual differences in fluid IQ. Here, we examine the interaction between adaptive learning signals (using a well-characterized probabilistic reversal learning task in combination with fMRI) and SLES on fluid IQ measures. We find that the correlation between ventral striatal BOLD PE and fluid IQ, which we have previously reported, is quantitatively modulated by the amount of reported SLES. Thus, after experiencing adversity, basic neuronal learning signatures appear to align more closely with a general measure of flexible learning (fluid IQ), a finding complementing studies on the effects of acute stress on learning. The results suggest that an understanding of the neurobiological correlates of trait variables like fluid IQ needs to take socioemotional influences such as chronic stress into account.},
  language  = {en}
}
@article{WippertDriessleinBecketal.2020,
  author    = {Wippert, Pia-Maria and Drießlein, David and Beck, Heidrun and Schneider, Christian and Puschmann, Anne-Katrin and Banzer, Winfried and Schiltenwolf, Marcus},
  title     = {The Feasibility and Effectiveness of a New Practical Multidisciplinary Treatment for Low-Back Pain},
  series = {Journal of Clinical Medicine},
  volume    = {9},
  journal   = {Journal of Clinical Medicine},
  number    = {115},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2077-0383},
  doi       = {10.3390/jcm9010115},
  pages     = {15},
  year      = {2020},
  abstract  = {Low-back pain is a major health problem exacerbated by the fact that most treatments are not suitable for self-management in everyday life. Particularly, interdisciplinary programs consist of intensive therapy lasting several weeks. Additionally, therapy components are rarely coordinated regarding reinforcing effects, which would improve complaints in persons with higher pain. This study assesses the effectiveness of a self-management program, firstly for persons suffering from higher pain and secondly compared to regular routines. Study objectives were treated in a single-blind multicenter controlled trial. A total of n = 439 volunteers (age 18-65 years) were randomly assigned to a twelve-week multidisciplinary sensorimotor training (3-weeks-center- and 9-weeks-homebased) or control group. The primary outcome pain (Chronic-Pain-Grade) as well as mental health were assessed by questionnaires at baseline and follow-up (3/6/12/24 weeks, M2-M5). For statistical analysis, multiple linear regression models were used. N = 291 (age 39.7 ± 12.7 years, female = 61.1\%, 77\% CPG = 1) completed training (M1/M4/M5), showing a significantly stronger reduction of mental health complaints (anxiety, vital exhaustion) in people with higher than those with lower pain in multidisciplinary treatment. Compared to regular routines, the self-management-multidisciplinary treatment led to a clinically relevant reduction of pain-disability and significant mental health improvements. Low-cost exercise programs may provide enormous relief for therapeutic processes, rehabilitation aftercare, and thus, cost savings for the health system},
  language  = {en}
}
@article{LorenzGleichBecketal.2014,
  author    = {Lorenz, Robert C. and Gleich, Tobias and Beck, Anne and Poehland, Lydia and Raufelder, Diana and Sommer, Werner and Rapp, Michael Armin and Kuehn, Simone and Gallinat, J{\"u}rgen},
  title     = {Reward anticipation in the adolescent and aging brain},
  series = {Human brain mapping : a journal devoted to functional neuroanatomy and neuroimaging},
  volume    = {35},
  journal   = {Human brain mapping : a journal devoted to functional neuroanatomy and neuroimaging},
  number    = {10},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {1065-9471},
  doi       = {10.1002/hbm.22540},
  pages     = {5153 -- 5165},
  year      = {2014},
  abstract  = {Processing of reward is the basis of adaptive behavior of the human being. Neural correlates of reward processing seem to be influenced by developmental changes from adolescence to late adulthood. The aim of this study is to uncover these neural correlates during a slot machine gambling task across the lifespan. Therefore, we used functional magnetic resonance imaging to investigate 102 volunteers in three different age groups: 34 adolescents, 34 younger adults, and 34 older adults. We focused on the core reward areas ventral striatum (VS) and ventromedial prefrontal cortex (VMPFC), the valence processing associated areas, anterior cingulate cortex (ACC) and insula, as well as information integration associated areas, dorsolateral prefrontal cortex (DLPFC), and inferior parietal lobule (IPL). Results showed that VS and VMPFC were characterized by a hyperactivation in adolescents compared with younger adults. Furthermore, the ACC and insula were characterized by a U-shape pattern (hypoactivation in younger adults compared with adolescents and older adults), whereas the DLPFC and IPL were characterized by a J-shaped form (hyperactivation in older adults compared with younger groups). Furthermore, a functional connectivity analysis revealed an elevated negative functional coupling between the inhibition-related area rIFG and VS in younger adults compared with adolescents. Results indicate that lifespan-related changes during reward anticipation are characterized by different trajectories in different reward network modules and support the hypothesis of an imbalance in maturation of striatal and prefrontal cortex in adolescents. Furthermore, these results suggest compensatory age-specific effects in fronto-parietal regions. Hum Brain Mapp 35:5153-5165, 2014. (c) 2014 Wiley Periodicals, Inc.},
  language  = {en}
}
@article{SchadGarbusowFriedeletal.2018,
  author    = {Schad, Daniel and Garbusow, Maria and Friedel, Eva and Sommer, Christian and Sebold, Miriam Hannah and H{\"a}gele, Claudia and Bernhardt, Nadine and Nebe, Stephan and Kuitunen-Paul, S{\"o}ren and Liu, Shuyan and Eichmann, Uta and Beck, Anne and Wittchen, Hans-Ulrich and Walter, Henrik and Sterzer, Philipp and Zimmermann, Ulrich S. and Smolka, Michael N. and Schlagenhauf, Florian and Huys, Quentin J. M. and Heinz, Andreas and Rapp, Michael Armin},
  title     = {Neural correlates of instrumental responding in the context of alcohol-related cues index disorder severity and relapse risk},
  series = {European archives of psychiatry and clinical neuroscience : official organ of the German Society for Biological Psychiatry},
  volume    = {269},
  journal   = {European archives of psychiatry and clinical neuroscience : official organ of the German Society for Biological Psychiatry},
  number    = {3},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {0940-1334},
  doi       = {10.1007/s00406-017-0860-4},
  pages     = {295 -- 308},
  year      = {2018},
  abstract  = {The influence of Pavlovian conditioned stimuli on ongoing behavior may contribute to explaining how alcohol cues stimulate drug seeking and intake. Using a Pavlovian-instrumental transfer task, we investigated the effects of alcohol-related cues on approach behavior (i.e., instrumental response behavior) and its neural correlates, and related both to the relapse after detoxification in alcohol-dependent patients. Thirty-one recently detoxified alcohol-dependent patients and 24 healthy controls underwent instrumental training, where approach or non-approach towards initially neutral stimuli was reinforced by monetary incentives. Approach behavior was tested during extinction with either alcohol-related or neutral stimuli (as Pavlovian cues) presented in the background during functional magnetic resonance imaging (fMRI). Patients were subsequently followed up for 6 months. We observed that alcohol-related background stimuli inhibited the approach behavior in detoxified alcohol-dependent patients (t = -3.86, p < .001), but not in healthy controls (t = -0.92, p = .36). This behavioral inhibition was associated with neural activation in the nucleus accumbens (NAcc) (t((30)) = 2.06, p < .05). Interestingly, both the effects were only present in subsequent abstainers, but not relapsers and in those with mild but not severe dependence. Our data show that alcohol-related cues can acquire inhibitory behavioral features typical of aversive stimuli despite being accompanied by a stronger NAcc activation, suggesting salience attribution. The fact that these findings are restricted to abstinence and milder illness suggests that they may be potential resilience factors.},
  language  = {en}
}
@article{SeboldNebeGarbusowetal.2017,
  author    = {Sebold, Miriam Hannah and Nebe, Stephan and Garbusow, Maria and Guggenmos, Matthias and Schad, Daniel and Beck, Anne and Kuitunen-Paul, S{\"o}ren and Sommer, Christian and Frank, Robin and Neu, Peter and Zimmermann, Ulrich S. and Rapp, Michael Armin and Smolka, Michael N. and Huys, Quentin J. M. and Schlagenhauf, Florian and Heinz, Andreas},
  title     = {When Habits Are Dangerous: Alcohol Expectancies and Habitual Decision Making Predict Relapse in Alcohol Dependence},
  series = {Biological psychiatry : a journal of psychiatric neuroscience and therapeutics ; a publication of the Society of Biological Psychiatry},
  volume    = {82},
  journal   = {Biological psychiatry : a journal of psychiatric neuroscience and therapeutics ; a publication of the Society of Biological Psychiatry},
  publisher = {Elsevier},
  address   = {New York},
  issn      = {0006-3223},
  doi       = {10.1016/j.biopsych.2017.04.019},
  pages     = {847 -- 856},
  year      = {2017},
  abstract  = {BACKGROUND: Addiction is supposedly characterized by a shift from goal-directed to habitual decision making, thus facilitating automatic drug intake. The two-step task allows distinguishing between these mechanisms by computationally modeling goal-directed and habitual behavior as model-based and model-free control. In addicted patients, decision making may also strongly depend upon drug-associated expectations. Therefore, we investigated model-based versus model-free decision making and its neural correlates as well as alcohol expectancies in alcohol-dependent patients and healthy controls and assessed treatment outcome in patients. METHODS: Ninety detoxified, medication-free, alcohol-dependent patients and 96 age-and gender-matched control subjects underwent functional magnetic resonance imaging during the two-step task. Alcohol expectancies were measured with the Alcohol Expectancy Questionnaire. Over a follow-up period of 48 weeks, 37 patients remained abstinent and 53 patients relapsed as indicated by the Alcohol Timeline Followback method. RESULTS: Patients who relapsed displayed reduced medial prefrontal cortex activation during model-based decision making. Furthermore, high alcohol expectancies were associated with low model-based control in relapsers, while the opposite was observed in abstainers and healthy control subjects. However, reduced model-based control per se was not associated with subsequent relapse. CONCLUSIONS: These findings suggest that poor treatment outcome in alcohol dependence does not simply result from a shift from model-based to model-free control but is instead dependent on the interaction between high drug expectancies and low model-based decision making. Reduced model-based medial prefrontal cortex signatures in those who relapse point to a neural correlate of relapse risk. These observations suggest that therapeutic interventions should target subjective alcohol expectancies.},
  language  = {en}
}
@article{SeitzSchumacherBakeretal.2019,
  author    = {Seitz, Aaron P. and Schumacher, Fabian and Baker, Jennifer and Soddemann, Matthias and Wilker, Barbara and Caldwell, Charles C. and Gobble, Ryan M. and Kamler, Markus and Becker, Katrin Anne and Beck, Sascha and Kleuser, Burkhard and Edwards, Michael J. and Gulbins, Erich},
  title     = {Sphingosine-coating of plastic surfaces prevents ventilator-associated pneumonia},
  series = {Journal of molecular medicine},
  volume    = {97},
  journal   = {Journal of molecular medicine},
  number    = {8},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {0946-2716},
  doi       = {10.1007/s00109-019-01800-1},
  pages     = {1195 -- 1211},
  year      = {2019},
  abstract  = {Ventilator-associated pneumonia (VAP) is a major cause of morbidity and mortality in critically ill patients. Here, we employed the broad antibacterial effects of sphingosine to prevent VAP by developing a novel method of coating surfaces of endotracheal tubes with sphingosine and sphingosine analogs. Sphingosine and phytosphingosine coatings of endotracheal tubes prevent adherence and mediate killing of Pseudomonas aeruginosa, Acinetobacter baumannii, and Staphylococcus aureus, even in biofilms. Most importantly, sphingosine-coating of endotracheal tubes also prevented P. aeruginosa and S. aureus pneumonia in vivo. Coating of the tubes with sphingosine was stable, without obvious side effects on tracheal epithelial cells and did not induce inflammation. In summary, we describe a novel method to coat plastic surfaces and provide evidence for the application of sphingosine and phytosphingosine as novel antimicrobial coatings to prevent bacterial adherence and induce killing of pathogens on the surface of endotracheal tubes with potential to prevent biofilm formation and VAP.Key messagesNovel dip-coating method to coat plastic surfaces with lipids.Sphingosine and phytosphingosine as novel antimicrobial coatings on plastic surface.Sphingosine coatings of endotracheal tubes prevent bacterial adherence and biofilms.Sphingosine coatings of endotracheal tubes induce killing of pathogens.Sphingosine coatings of endotracheal tubes ventilator-associated pneumonia.},
  language  = {en}
}
@article{DesernoBeckHuysetal.2015,
  author    = {Deserno, Lorenz and Beck, Anne and Huys, Quentin J. M. and Lorenz, Robert C. and Buchert, Ralph and Buchholz, Hans-Georg and Plotkin, Michail and Kumakara, Yoshitaka and Cumming, Paul and Heinze, Hans-Jochen and Grace, Anthony A. and Rapp, Michael Armin and Schlagenhauf, Florian and Heinz, Andreas},
  title     = {Chronic alcohol intake abolishes the relationship between dopamine synthesis capacity and learning signals in the ventral striatum},
  series = {European journal of neuroscience},
  volume    = {41},
  journal   = {European journal of neuroscience},
  number    = {4},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {0953-816X},
  doi       = {10.1111/ejn.12802},
  pages     = {477 -- 486},
  year      = {2015},
  abstract  = {Drugs of abuse elicit dopamine release in the ventral striatum, possibly biasing dopamine-driven reinforcement learning towards drug-related reward at the expense of non-drug-related reward. Indeed, in alcohol-dependent patients, reactivity in dopaminergic target areas is shifted from non-drug-related stimuli towards drug-related stimuli. Such hijacked' dopamine signals may impair flexible learning from non-drug-related rewards, and thus promote craving for the drug of abuse. Here, we used functional magnetic resonance imaging to measure ventral striatal activation by reward prediction errors (RPEs) during a probabilistic reversal learning task in recently detoxified alcohol-dependent patients and healthy controls (N=27). All participants also underwent 6-[F-18]fluoro-DOPA positron emission tomography to assess ventral striatal dopamine synthesis capacity. Neither ventral striatal activation by RPEs nor striatal dopamine synthesis capacity differed between groups. However, ventral striatal coding of RPEs correlated inversely with craving in patients. Furthermore, we found a negative correlation between ventral striatal coding of RPEs and dopamine synthesis capacity in healthy controls, but not in alcohol-dependent patients. Moderator analyses showed that the magnitude of the association between dopamine synthesis capacity and RPE coding depended on the amount of chronic, habitual alcohol intake. Despite the relatively small sample size, a power analysis supports the reported results. Using a multimodal imaging approach, this study suggests that dopaminergic modulation of neural learning signals is disrupted in alcohol dependence in proportion to long-term alcohol intake of patients. Alcohol intake may perpetuate itself by interfering with dopaminergic modulation of neural learning signals in the ventral striatum, thus increasing craving for habitual drug intake.},
  language  = {en}
}
@misc{HaegeleSchlagenhaufRappetal.2014,
  author    = {H{\"a}gele, Claudia and Schlagenhauf, Florian and Rapp, Michael Armin and Sterzer, Philipp and Beck, Anne and Bermpohl, Felix and Stoy, Meline and Str{\"o}hle, Andreas and Wittchen, Hans-Ulrich and Dolan, Raymond J. and Heinz, Andreas},
  title     = {Dimensional psychiatry},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {653},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-43106},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-431064},
  pages     = {331 -- 341},
  year      = {2014},
  abstract  = {A dimensional approach in psychiatry aims to identify core mechanisms of mental disorders across nosological boundaries. We compared anticipation of reward between major psychiatric disorders, and investigated whether reward anticipation is impaired in several mental disorders and whether there is a common psychopathological correlate (negative mood) of such an impairment. We used functional magnetic resonance imaging (fMRI) and a monetary incentive delay (MID) task to study the functional correlates of reward anticipation across major psychiatric disorders in 184 subjects, with the diagnoses of alcohol dependence (n = 26), schizophrenia (n = 44), major depressive disorder (MDD, n = 24), bipolar disorder (acute manic episode, n = 13), attention deficit/hyperactivity disorder (ADHD, n = 23), and healthy controls (n = 54). Subjects' individual Beck Depression Inventory-and State-Trait Anxiety Inventory-scores were correlated with clusters showing significant activation during reward anticipation. During reward anticipation, we observed significant group differences in ventral striatal (VS) activation: patients with schizophrenia, alcohol dependence, and major depression showed significantly less ventral striatal activation compared to healthy controls. Depressive symptoms correlated with dysfunction in reward anticipation regardless of diagnostic entity. There was no significant correlation between anxiety symptoms and VS functional activation. Our findings demonstrate a neurobiological dysfunction related to reward prediction that transcended disorder categories and was related to measures of depressed mood. The findings underline the potential of a dimensional approach in psychiatry and strengthen the hypothesis that neurobiological research in psychiatric disorders can be targeted at core mechanisms that are likely to be implicated in a range of clinical entities.},
  language  = {en}
}