@article{FischerVenturaBortHammetal.2018,
  author    = {Fischer, Rico and Ventura-Bort, Carlos and Hamm, Alfons O. and Weymar, Mathias},
  title     = {Transcutaneous vagus nerve stimulation (tVNS) enhances conflict-triggered adjustment of cognitive control},
  series = {Cognitive, affective, \& behavioral neuroscience : a journal of the Psychonomic Society},
  volume    = {18},
  journal   = {Cognitive, affective, \& behavioral neuroscience : a journal of the Psychonomic Society},
  number    = {4},
  publisher = {Springer},
  address   = {New York},
  issn      = {1530-7026},
  doi       = {10.3758/s13415-018-0596-2},
  pages     = {680 -- 693},
  year      = {2018},
  abstract  = {Response conflicts play a prominent role in the flexible adaptation of behavior as they represent context-signals that indicate the necessity for the recruitment of cognitive control. Previous studies have highlighted the functional roles of the affectively aversive and arousing quality of the conflict signal in triggering the adaptation process. To further test this potential link with arousal, participants performed a response conflict task in two separate sessions with either transcutaneous vagus nerve stimulation (tVNS), which is assumed to activate the locus coeruleus-noradrenaline (LC-NE) system, or with neutral sham stimulation. In both sessions the N2 and P3 event-related potentials (ERP) were assessed. In line with previous findings, conflict interference, the N2 and P3 amplitude were reduced after conflict. Most importantly, this adaptation to conflict was enhanced under tVNS compared to sham stimulation for conflict interference and the N2 amplitude. No effect of tVNS on the P3 component was found. These findings suggest that tVNS increases behavioral and electrophysiological markers of adaptation to conflict. Results are discussed in the context of the potentially underlying LC-NE and other neuromodulatory (e.g., GABA) systems. The present findings add important pieces to the understanding of the neurophysiological mechanisms of conflict-triggered adjustment of cognitive control.},
  language  = {en}
}
@article{WeckGrikscheitHoeflingetal.2016,
  author    = {Weck, Florian and Grikscheit, Florian and H{\"o}fling, Volkmar and Kordt, Anne and Hamm, Alfons O. and Gerlach, Alexander L. and Alpers, Georg W. and Arolt, Volker and Kircher, Tilo and Pauli, Paul and Rief, Winfried and Lang, Thomas},
  title     = {The role of treatment delivery factors in exposure-based cognitive behavioral therapy for panic disorder with agoraphobia},
  series = {Journal of anxiety disorders},
  volume    = {42},
  journal   = {Journal of anxiety disorders},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0887-6185},
  doi       = {10.1016/j.janxdis.2016.05.007},
  pages     = {10 -- 18},
  year      = {2016},
  abstract  = {Treatment delivery factors (i.e., therapist adherence, therapist competence, and therapeutic alliance) are considered to be important for cognitive behavioral therapy (CBT) for panic disorder and agoraphobia (PD/AG). In the current study, four independent raters conducted process evaluations based on 168 two-hour videotapes of 84 patients with PD/AG treated with exposure-based CBT. Two raters evaluated patients' interpersonal behavior in Session 1. Two raters evaluated treatment delivery factors in Session 6, in which therapists provided the rationale for conducting exposure exercises. At the 6-month follow-up, therapists' adherence (r = 0.54) and therapeutic alliance (r = 0.31) were significant predictors of changes in agoraphobic avoidance behavior; therapist competence was not associated with treatment outcomes. Patients' interpersonal behavior in Session 1 was a significant predictor of the therapeutic alliance in Session 6 (r = 0.17). The findings demonstrate that treatment delivery factors, particularly therapist adherence, are relevant to the long-term success of CBT for PD/AG.},
  language  = {en}
}
@misc{WeymarVenturaBortGenheimeretal.2017,
  author    = {Weymar, Mathias and Ventura-Bort, Carlos and Genheimer, Hannah and Wirkner, Janine and Wendt, Julia and Hamm, Alfons O.},
  title     = {THE P300 AND THE LC-NE SYSTEM: NEW INSIGHTS FROM TRANSCUTANEOUS VAGUS NERVE STIMULATION (TVNS)},
  series = {Psychophysiology : journal of the Society for Psychophysiological Research},
  volume    = {54},
  journal   = {Psychophysiology : journal of the Society for Psychophysiological Research},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {0048-5772},
  pages     = {S145 -- S145},
  year      = {2017},
  language  = {en}
}
@article{SzeskaRichterWendtetal.2020,
  author    = {Szeska, Christoph and Richter, Jan and Wendt, Julia and Weymar, Mathias and Hamm, Alfons O.},
  title     = {Promoting long-term inhibition of human fear responses by non-invasive transcutaneous vagus nerve stimulation during extinction training},
  series = {Scientific reports},
  volume    = {10},
  journal   = {Scientific reports},
  number    = {1},
  publisher = {Nature Publishing Group},
  address   = {London},
  issn      = {2045-2322},
  doi       = {10.1038/s41598-020-58412-w},
  pages     = {16},
  year      = {2020},
  abstract  = {Inhibiting fear-related thoughts and defensive behaviors when they are no longer appropriate to the situation is a prerequisite for flexible and adaptive responding to changing environments. Such inhibition of defensive systems is mediated by ventromedial prefrontal cortex (vmPFC), limbic basolateral amygdala (BLA), and brain stem locus-coeruleus noradrenergic system (LC-NAs). Non-invasive, transcutaneous vagus nerve stimulation (tVNS) has shown to activate this circuit. Using a multiple-day single-cue fear conditioning and extinction paradigm, we investigated long-term effects of tVNS on inhibition of low-level amygdala modulated fear potentiated startle and cognitive risk assessments. We found that administration of tVNS during extinction training facilitated inhibition of fear potentiated startle responses and cognitive risk assessments, resulting in facilitated formation, consolidation and long-term recall of extinction memory, and prevention of the return of fear. These findings might indicate new ways to increase the efficacy of exposure-based treatments of anxiety disorders.},
  language  = {en}
}
@article{PahnkeMauMoellerJungeetal.2019,
  author    = {Pahnke, Rike and Mau-M{\"o}ller, Anett and Junge, Martin and Wendt, Julia and Weymar, Mathias and Hamm, Alfons O. and Lischke, Alexander},
  title     = {Oral Contraceptives Impair Complex Emotion Recognition in Healthy Women},
  series = {Frontiers in neuroscience},
  volume    = {12},
  journal   = {Frontiers in neuroscience},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1662-453X},
  doi       = {10.3389/fnins.2018.01041},
  pages     = {9},
  year      = {2019},
  abstract  = {Despite the widespread use of oral contraceptives (OCs), remarkably little is known about the effects of OCs on emotion, cognition, and behavior. However, coincidental findings suggest that OCs impair the ability to recognize others' emotional expressions, which may have serious consequences in interpersonal contexts. To further investigate the effects of OCs on emotion recognition, we tested whether women who were using OCs (n = 42) would be less accurate in the recognition of complex emotional expressions than women who were not using OCs (n = 53). In addition, we explored whether these differences in emotion recognition would depend on women's menstrual cycle phase. We found that women with OC use were indeed less accurate in the recognition of complex expressions than women without OC use, in particular during the processing of expressions that were difficult to recognize. These differences in emotion recognition did not depend on women's menstrual cycle phase. Our findings, thus, suggest that OCs impair women's emotion recognition, which should be taken into account when informing women about the side-effects of OC use.},
  language  = {en}
}
@misc{DolcosKatsumiMooreetal.2019,
  author    = {Dolcos, Florin and Katsumi, Yuta and Moore, Matthew and Berggren, Nick and de Gelder, Beatrice and Derakshan, Nazanin and Hamm, Alfons O. and Koster, Ernst H. W. and Ladouceur, Cecile D. and Okon-Singer, Hadas and Ventura-Bort, Carlos and Weymar, Mathias},
  title     = {Neural correlates of emotion-attention interactions},
  series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  issn      = {1866-8364},
  doi       = {10.25932/publishup-51621},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-516213},
  pages     = {45},
  year      = {2019},
  abstract  = {Due to their ability to capture attention, emotional stimuli tend to benefit from enhanced perceptual processing, which can be helpful when such stimuli are task-relevant but hindering when they are task-irrelevant. Altered emotion-attention interactions have been associated with symptoms of affective disturbances, and emerging research focuses on improving emotion-attention interactions to prevent or treat affective disorders. In line with the Human Affectome Project's emphasis on linguistic components, we also analyzed the language used to describe attention-related aspects of emotion, and highlighted terms related to domains such as conscious awareness, motivational effects of attention, social attention, and emotion regulation. These terms were discussed within a broader review of available evidence regarding the neural correlates of (1) Emotion-Attention Interactions in Perception, (2) Emotion-Attention Interactions in Learning and Memory, (3) Individual Differences in Emotion-Attention Interactions, and (4) Training and Interventions to Optimize Emotion-Attention Interactions. This comprehensive approach enabled an integrative overview of the current knowledge regarding the mechanisms of emotion-attention interactions at multiple levels of analysis, and identification of emerging directions for future investigations.},
  language  = {en}
}
@article{DolcosKatsumiMooreetal.2019,
  author    = {Dolcos, Florin and Katsumi, Yuta and Moore, Matthew and Berggren, Nick and de Gelder, Beatrice and Derakshan, Nazanin and Hamm, Alfons O. and Koster, Ernst H. W. and Ladouceur, Cecile D. and Okon-Singer, Hadas and Ventura-Bort, Carlos and Weymar, Mathias},
  title     = {Neural correlates of emotion-attention interactions},
  series = {Neuroscience and Biobehavioral Reviews},
  volume    = {108},
  journal   = {Neuroscience and Biobehavioral Reviews},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0149-7634},
  doi       = {10.1016/j.neubiorev.2019.08.017},
  pages     = {559 -- 601},
  year      = {2019},
  abstract  = {Due to their ability to capture attention, emotional stimuli tend to benefit from enhanced perceptual processing, which can be helpful when such stimuli are task-relevant but hindering when they are task-irrelevant. Altered emotion-attention interactions have been associated with symptoms of affective disturbances, and emerging research focuses on improving emotion-attention interactions to prevent or treat affective disorders. In line with the Human Affectome Project's emphasis on linguistic components, we also analyzed the language used to describe attention-related aspects of emotion, and highlighted terms related to domains such as conscious awareness, motivational effects of attention, social attention, and emotion regulation. These terms were discussed within a broader review of available evidence regarding the neural correlates of (1) Emotion-Attention Interactions in Perception, (2) Emotion-Attention Interactions in Learning and Memory, (3) Individual Differences in Emotion-Attention Interactions, and (4) Training and Interventions to Optimize Emotion-Attention Interactions. This comprehensive approach enabled an integrative overview of the current knowledge regarding the mechanisms of emotion-attention interactions at multiple levels of analysis, and identification of emerging directions for future investigations.},
  language  = {en}
}
@article{VenturaBortDolcosWendtetal.2017,
  author    = {Ventura-Bort, Carlos and Dolcos, Florin and Wendt, Julia and Wirkner, Janine and Hamm, Alfons O. and Weymar, Mathias},
  title     = {Item and source memory for emotional associates is mediated by different retrieval processes},
  series = {Neuropsychologia : an international journal in behavioural and cognitive neuroscience},
  volume    = {145},
  journal   = {Neuropsychologia : an international journal in behavioural and cognitive neuroscience},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {0028-3932},
  doi       = {10.1016/j.neuropsychologia.2017.12.015},
  pages     = {11},
  year      = {2017},
  abstract  = {Recent event-related potential (ERP) data showed that neutral objects encoded in emotional background pictures were better remembered than objects encoded in neutral contexts, when recognition memory was tested one week later. In the present study, we investigated whether this long-term memory advantage for items is also associated with correct memory for contextual source details. Furthermore, we were interested in the possibly dissociable contribution of familiarity and recollection processes (using a Remember/Know procedure). The results revealed that item memory performance was mainly driven by the subjective experience of familiarity, irrespective of whether the objects were previously encoded in emotional or neutral contexts. Correct source memory for the associated background picture, however, was driven by recollection and enhanced when the content was emotional. In ERPs, correctly recognized old objects evoked frontal ERP Old/New effects (300-500 ms), irrespective of context category. As in our previous study (Ventura-Bort et al., 2016b), retrieval for objects from emotional contexts was associated with larger parietal Old/New differences (600-800 ms), indicating stronger involvement of recollection. Thus, the results suggest a stronger contribution of recollection-based retrieval to item and contextual background source memory for neutral information associated with an emotional event.},
  language  = {en}
}
@article{WendtWeymarJungeetal.2018,
  author    = {Wendt, Julia and Weymar, Mathias and Junge, Martin and Hamm, Alfons O. and Lischke, Alexander},
  title     = {Heartfelt memories},
  series = {Emotion : a new journal from the American Psychological Association},
  volume    = {19},
  journal   = {Emotion : a new journal from the American Psychological Association},
  number    = {1},
  publisher = {American Psychological Association},
  address   = {Washington},
  issn      = {1528-3542},
  doi       = {10.1037/emo0000396},
  pages     = {178 -- 182},
  year      = {2018},
  abstract  = {During social interactions, we rapidly judge others' trustworthiness on basis of their facial characteristics. Face-based trustworthiness judgments may not only affect our current but also our future interactions because we seem to be more inclined to remember untrustworthy than trustworthy faces. Memory formation of salient stimuli like untrustworthy faces may be modulated by the interplay between the autonomic and central nervous system, which can be indexed by changes in vagally mediated heart rate variability (HRV). To test this assumption, we investigated whether differences in HRV would be associated with differences in memory formation of untrustworthy faces in a sample of healthy participants (n = 34, all female). Untrustworthy faces were remembered more accurately than trustworthy faces, albeit only by participants with high and not low HRV. Across participants, increased memory accuracy for untrustworthy faces was associated with increased HRV. We discuss these findings in the context of neurobiological theories regarding the interplay between the autonomic and central nervous system during the regulation of autonomic, emotional and cognitive processes. (PsycInfo Database Record},
  language  = {en}
}
@article{WirknerVenturaBortSchulzetal.2018,
  author    = {Wirkner, Janine and Ventura-Bort, Carlos and Schulz, Paul and Hamm, Alfons O. and Weymar, Mathias},
  title     = {Event-related potentials of emotional and neutral memories},
  series = {Psychophysiology : journal of the Society for Psychophysiological Research},
  volume    = {55},
  journal   = {Psychophysiology : journal of the Society for Psychophysiological Research},
  number    = {7},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {0048-5772},
  doi       = {10.1111/psyp.13069},
  pages     = {12},
  year      = {2018},
  abstract  = {Previous research found that memory is not only better for emotional information but also for neutral information that has been encoded in the context of an emotional event. In the present ERP study, we investigated two factors that may influence memory for neutral and emotional items: temporal proximity between emotional and neutral items during encoding, and retention interval (immediate vs. delayed). Forty-nine female participants incidentally encoded 36 unpleasant and 108 neutral pictures (36 neutral pictures preceded an unpleasant picture, 36 followed an unpleasant picture, and 36 neutral pictures were preceded and followed by neutral pictures) and participated in a recognition memory task either immediately (N=24) or 1 week (N=25) after encoding. Results showed better memory for emotional pictures relative to neutral pictures. In accordance, enhanced centroparietal old/new differences (500-900 ms) during recognition were observed for unpleasant compared to neutral pictures, most pronounced for the 1-week interval. Picture position effects, however, were only subtle. During encoding, late positive potentials for neutral pictures were slightly lower for neutral pictures following unpleasant ones, but only at trend level. To summarize, we could replicate and extend previous ERP findings showing that emotionally arousing events are better recollected than neutral events, particularly when memory is tested after longer retention intervals. Picture position during encoding, however, had only small effects on elaborative processing and no effects on memory retrieval.},
  language  = {en}
}