Refine
Has Fulltext
- no (44641) (remove)
Year of publication
Document Type
- Article (31833)
- Monograph/Edited Volume (4588)
- Doctoral Thesis (3969)
- Review (1734)
- Part of a Book (1015)
- Other (851)
- Conference Proceeding (301)
- Preprint (121)
- Habilitation Thesis (54)
- Contribution to a Periodical (41)
Language
Keywords
- climate change (104)
- Germany (84)
- stars: massive (58)
- Climate change (49)
- diffusion (48)
- stars: early-type (48)
- German (47)
- gamma rays: general (47)
- Arabidopsis thaliana (46)
- stars: winds, outflows (45)
Institute
- Institut für Biochemie und Biologie (4756)
- Institut für Physik und Astronomie (4724)
- Institut für Geowissenschaften (3155)
- Institut für Chemie (2928)
- Historisches Institut (2069)
- Wirtschaftswissenschaften (2062)
- Department Psychologie (2050)
- Sozialwissenschaften (1653)
- Institut für Mathematik (1629)
- Institut für Romanistik (1599)
- Department Sport- und Gesundheitswissenschaften (1355)
- Institut für Germanistik (1289)
- Bürgerliches Recht (1211)
- Institut für Umweltwissenschaften und Geographie (1185)
- Department Erziehungswissenschaft (1073)
- Öffentliches Recht (1070)
- Institut für Ernährungswissenschaft (1059)
- Department Linguistik (931)
- Institut für Informatik und Computational Science (865)
- Institut für Jüdische Studien und Religionswissenschaft (761)
- Institut für Anglistik und Amerikanistik (636)
- Department Grundschulpädagogik (605)
- Philosophische Fakultät (530)
- Strafrecht (443)
- Fachgruppe Politik- & Verwaltungswissenschaft (435)
- Fachgruppe Betriebswirtschaftslehre (349)
- Institut für Slavistik (338)
- Lehreinheit für Wirtschafts-Arbeit-Technik (298)
- Institut für Künste und Medien (287)
- Strukturbereich Kognitionswissenschaften (239)
- Hasso-Plattner-Institut für Digital Engineering gGmbH (236)
- Department für Inklusionspädagogik (225)
- Hasso-Plattner-Institut für Digital Engineering GmbH (217)
- Extern (206)
- Fachgruppe Soziologie (206)
- MenschenRechtsZentrum (187)
- WeltTrends e.V. Potsdam (185)
- Department Musik und Kunst (139)
- Institut für Philosophie (134)
- Fachgruppe Volkswirtschaftslehre (123)
- Wirtschafts- und Sozialwissenschaftliche Fakultät (119)
- Institut für Jüdische Theologie (88)
- Zentrum für Gerechtigkeitsforschung (87)
- Klassische Philologie (86)
- Strukturbereich Bildungswissenschaften (83)
- An-Institute (72)
- Interdisziplinäres Zentrum für Dynamik komplexer Systeme (67)
- Fakultät für Gesundheitswissenschaften (61)
- Mathematisch-Naturwissenschaftliche Fakultät (54)
- Humanwissenschaftliche Fakultät (49)
- Zentrum für Sprachen und Schlüsselkompetenzen (Zessko) (48)
- Zentrum für Umweltwissenschaften (48)
- ZIM - Zentrum für Informationstechnologie und Medienmanagement (46)
- Zentrum für Lehrerbildung und Bildungsforschung (ZeLB) (36)
- Universitätsleitung und Verwaltung (34)
- Kommunalwissenschaftliches Institut (33)
- Universitätsbibliothek (30)
- Zentrum für Lern- und Lehrforschung (30)
- Interdisziplinäres Zentrum für Dünne Organische und Biochemische Schichten (26)
- Juristische Fakultät (24)
- Moses Mendelssohn Zentrum für europäisch-jüdische Studien e. V. (17)
- Institut für Religionswissenschaft (14)
- Hochschulambulanz (13)
- Potsdam Research Institute for Multilingualism (PRIM) (13)
- Interdisziplinäres Zentrum für Biopolymere (12)
- Institut für Lebensgestaltung-Ethik-Religionskunde (11)
- Organe und Gremien (11)
- Institut für angewandte Familien-, Kindheits- und Jugendforschung e.V. (10)
- Potsdam Transfer - Zentrum für Gründung, Innovation, Wissens- und Technologietransfer (10)
- Potsdam Institute for Climate Impact Research (PIK) e. V. (9)
- Referat für Presse- und Öffentlichkeitsarbeit (9)
- Abraham Geiger Kolleg gGmbH (6)
- Zentrum für Australienforschung (6)
- Forschungsbereich „Politik, Verwaltung und Management“ (4)
- Gesundheitsmanagement (4)
- Interdisziplinäres Zentrum für Kognitive Studien (4)
- Theodor-Fontane-Archiv (4)
- Zentrum für Qualitätsentwicklung in Lehre und Studium (ZfQ) (4)
- Digital Engineering Fakultät (3)
- Gleichstellungsbeauftragte (3)
- Multilingualism (3)
- Projekte (3)
- Präsident | Vizepräsidenten (3)
- UP Transfer (3)
- DV und Statistik Wirtschaftswissenschaften (2)
- Kanonistisches Institut e.V. (2)
- Vereinigung für Jüdische Studien e. V. (2)
- Akademie für Psychotherapie und Interventionsforschung GmbH (1)
- Allgemeine Studierendenausschuss (AStA) (1)
- Arbeitskreis Militär und Gesellschaft in der Frühen Neuzeit e. V. (1)
- Berlin Potsdam Research Group "The International Rule of Law - Rise or Decline?" (1)
- Botanischer Garten (1)
- Chief Information Officer (CIO) (1)
- Dezernat 2: Studienangelegenheiten (1)
- Evangelisches Institut für Kirchenrecht e.V. (1)
- Geschlechtersoziologie (1)
- Interdisziplinäres Zentrum für Massenspektronomie von Biopolymeren (1)
- Kanzler (1)
- Netzwerk Studienqualität Brandenburg (sqb) (1)
- Patholinguistics/Neurocognition of Language (1)
- Redaktion *studere (1)
- Studierendenparlament (StuPa) (1)
- Weitere Einrichtungen (1)
- Zentrale und wissenschaftliche Einrichtungen (1)
At the junction of greenhouse and icehouse climate states, the Eocene-Oligocene Transition (EOT) is a key moment in Cenozoic climate history. While it is associated with severe extinctions and biodiversity turnovers on land, the role of terrestrial climate evolution remains poorly resolved, especially the associated changes in seasonality. Some paleobotanical and geochemical continental records in parts of the Northern Hemisphere suggest the EOT is associated with a marked cooling in winter, leading to the development of more pronounced seasons (i.e., an increase in the mean annual range of temperature, MATR). However, the MATR increase has been barely studied by climate models and large uncertainties remain on its origin, geographical extent and impact. In order to better understand and describe temperature seasonality changes between the middle Eocene and the early Oligocene, we use the Earth system model IPSL-CM5A2 and a set of simulations reconstructing the EOT through three major climate forcings: pCO(2) decrease (1120, 840 and 560 ppm), the Antarctic ice-sheet (AIS) formation and the associated sea-level decrease. Our simulations suggest that pCO(2) lowering alone is not sufficient to explain the seasonality evolution described by the data through the EOT but rather that the combined effects of pCO(2) , AIS formation and increased continentality provide the best data-model agreement.pCO(2) decrease induces a zonal pattern with alternating increasing and decreasing seasonality bands particularly strong in the northern high latitudes (up to 8 degrees C MATR increase) due to sea-ice and surface albedo feedback. Conversely, the onset of the AIS is responsible for a more constant surface albedo yearly, which leads to a strong decrease in seasonality in the southern midlatitudes to high latitudes (> 40 degrees S). Finally, continental areas that emerged due to the sea-level lowering cause the largest increase in seasonality and explain most of the global heterogeneity in MATR changes (1MATR) patterns. The Delta MATR patterns we reconstruct are generally consistent with the variability of the EOT biotic crisis intensity across the Northern Hemisphere and provide insights on their underlying mechanisms.
We present a detailed spectroscopic and timing analysis of X-ray observations of the bright pulsar PSR B0656+14. The observations were obtained simultaneously with eROSITA and XMM-Newton during the calibration and performance verification phase of the Spektrum-Roentgen-Gamma mission (SRG). The analysis of the 100 ks deep observation of eROSITA is supported by archival observations of the source, including XMM-Newton, NuSTAR, and NICER. Using XMM-Newton and NICER, we first established an X-ray ephemeris for the time interval 2015 to 2020, which connects all X-ray observations in this period without cycle count alias and phase shifts. The mean eROSITA spectrum clearly reveals an absorption feature originating from the star at 570 eV with a Gaussian sigma of about 70 eV that was tentatively identified in a previous long XMM-Newton observation. A second previously discussed absorption feature occurs at 260-265 eV and is described here as an absorption edge. It could be of atmospheric or of instrumental origin. These absorption features are superposed on various emission components that are phenomenologically described here as the sum of hot (120 eV) and cold (65 eV) blackbody components, both of photospheric origin, and a power law with photon index Gamma = 2 from the magnetosphere. We created energy-dependent light curves and phase-resolved spectra with a high signal-to-noise ratio. The phase-resolved spectroscopy reveals that the Gaussian absorption line at 570 eV is clearly present throughout similar to 60% of the spin cycle, but it is otherwise undetected. Likewise, its parameters were found to be dependent on phase. The visibility of the line strength coincides in phase with the maximum flux of the hot blackbody. If the line originates from the stellar surface, it nevertheless likely originates from a different location than the hot polar cap. We also present three families of model atmospheres: a magnetized atmosphere, a condensed surface, and a mixed model. They were applied to the mean observed spectrum, whose continuum fit the observed data well. The atmosphere model, however, predicts distances that are too short. For the mixed model, the Gaussian absorption may be interpreted as proton cyclotron absorption in a field as high as 10(14) G, which is significantly higher than the field derived from the moderate observed spin-down.
Am Ende der Globalisierung
(2021)
Die Globalisierung ist zur allgegenwärtigen Gewissheit geworden. Doch wie zutreffend ist das Konzept »Globalisierung«, wenn zeitgleich nationale Grenzen gestärkt und transnationale Freihandelszonen ausgeweitet werden, wenn auf unterschiedlichen scales Territorien überwunden und zugleich territoriale Abgrenzungen neu gesetzt werden? Aktuelle Veränderungen als Re-Figuration von Räumen zu verstehen, ermöglicht die Analyse und Diskussion widersprüchlicher, spannungsreicher und konflikthafter räumlicher Prozesse und ihrer alltäglichen Erfahrung. Die interdisziplinären Beiträge des Bandes liefern theoretische und empirische Analysen zu politischen, digitalen und alltäglichen Räumen im Konzept der Re-Figuration.
Zimzum
(2023)
Zimzum is the kabbalistic idea that God created the world by limiting his omnipresence. Zimzum originated in the teachings of the sixteenth-century Jewish mystic Isaac Luria and here, Christoph Schulte follows its traces across the Jewish and Christian intellectual history of Europe and North America over four centuries.
The Hebrew word zimzum originally means “contraction,” “withdrawal,” “retreat,” “limitation,” and “concentration.” In Kabbalah, zimzum is a term for God’s self-limitation, done before creating the world to create the world. Jewish mystic Isaac Luria coined this term in Galilee in the sixteenth century, positing that the God who was “Ein-Sof,” unlimited and omnipresent before creation, must concentrate himself in the zimzum and withdraw in order to make room for the creation of the world in God’s own center. At the same time, God also limits his infinite omnipotence to allow the finite world to arise. Without the zimzum there is no creation, making zimzum one of the basic concepts of Judaism.
The Lurianic doctrine of the zimzum has been considered an intellectual showpiece of the Kabbalah and of Jewish philosophy. The teaching of the zimzum has appeared in the Kabbalistic literature across Central and Eastern Europe, perhaps most famously in Hasidic literature up to the present day and in philosopher and historian Gershom Scholem’s epoch-making research on Jewish mysticism. The Zimzum has fascinated Jewish and Christian theologians, philosophers, and writers like no other Kabbalistic teaching. This can be seen across the philosophy and cultural history of the twentieth century as it gained prominence among such diverse authors and artists as Franz Rosenzweig, Hans Jonas, Isaac Bashevis Singer, Harold Bloom, Barnett Newman, and Anselm Kiefer.
This book follows the traces of the zimzum across the Jewish and Christian intellectual history of Europe and North America over more than four centuries, where Judaism and Christianity, theosophy and philosophy, divine and human, mysticism and literature, Kabbalah and the arts encounter, mix, and cross-fertilize the interpretations and appropriations of this doctrine of God’s self-entanglement and limitation.
Deriving mechanism-based pharmacodynamic models by reducing quantitative systems pharmacology models
(2023)
Quantitative systems pharmacology (QSP) models integrate comprehensive qualitative and quantitative knowledge about pharmacologically relevant processes. We previously proposed a first approach to leverage the knowledge in QSP models to derive simpler, mechanism-based pharmacodynamic (PD) models. Their complexity, however, is typically still too large to be used in the population analysis of clinical data. Here, we extend the approach beyond state reduction to also include the simplification of reaction rates, elimination of reactions, and analytic solutions. We additionally ensure that the reduced model maintains a prespecified approximation quality not only for a reference individual but also for a diverse virtual population. We illustrate the extended approach for the warfarin effect on blood coagulation. Using the model-reduction approach, we derive a novel small-scale warfarin/international normalized ratio model and demonstrate its suitability for biomarker identification. Due to the systematic nature of the approach in comparison with empirical model building, the proposed model-reduction algorithm provides an improved rationale to build PD models also from QSP models in other applications.
Am Ende der Globalisierung
(2021)
Quantifying the resilience of vegetated ecosystems is key to constraining both present-day and future global impacts of anthropogenic climate change. Here we apply both empirical and theoretical resilience metrics to remotely-sensed vegetation data in order to examine the role of water availability and variability in controlling vegetation resilience at the global scale. We find a concise global relationship where vegetation resilience is greater in regions with higher water availability. We also reveal that resilience is lower in regions with more pronounced inter-annual precipitation variability, but find less concise relationships between vegetation resilience and intra-annual precipitation variability. Our results thus imply that the resilience of vegetation responds differently to water deficits at varying time scales. In view of projected increases in precipitation variability, our findings highlight the risk of ecosystem degradation under ongoing climate change.
Vegetation dynamics depend on both the amount of precipitation and its variability over time. Here, the authors show that vegetation resilience is greater where water availability is higher and where precipitation is more stable from year to year.
On his journey to the 'Orient' in 1856, the cultural entrepreneur from Vienna Ludwig August Frankl (1810–94) discussed the recent Hatt-ı-Hümayun, the new constitution promulgated by Sultan Abdülmecid I for the Ottoman Empire, with a Turkish state official. Frankl said that the European nations wondered whether the Ottoman Empire would be able to enact this revolutionary legislation, especially given the fact that they themselves had not yet implemented the full emancipation of religious minorities in their countries. 'Equal rights for all religions,' he exclaimed. 'While England orders this legislation for an, Your Mightiness will excuse the common expression, uncivilized nation, they do not comply with it in their own Parliament' (Ludwig August Frankl, Nach Jerusalem! (1858), i, 191). While criticizing England's hypocritical policy, Frankl, as an Austrian Jew, was actually referring to the discriminatory legislation against Jews in his own country, the Habsburg Monarchy. European Jews, whose legal emancipation had been postponed since the eighteenth century, were in awe of the Ottoman reforms that fundamentally reversed the relationship between Muslims and non-Muslims with the stroke of a pen. The chequered relationship between the Ottoman Empire and the European powers, or more precisely, the Habsburg Monarchy, from the nineteenth century until the First World War, is the topic of Barbara Haider-Wilson's comprehensive study Österreichs friedlicher Kreuzzug 1839–1917.
Der systematische Erwerb von Kenntnissen im Umgang mit Quellen in jüdischen Sprachen ist im Wissenschaftsbetrieb ein Desideratum. Das vorliegende Buch liefert hierzu eine praktische Einführung. Die ausgewählten handschriftlichen und gedruckten Quellen dokumentieren jüdische Geschichte von der Frühen Neuzeit bis ins 20. Jahrhundert in vier jüdischen Sprachen – Hebräisch, Jiddisch, Judendeutsch und Judenspanisch. Neben der jeweils als Faksimile wiedergegebenen Quelle werden eine Transkription und eine deutsche Übersetzung geboten. Das Buch ermöglicht nicht nur einen Einstieg in die Quellenkunde, insbesondere die Paläographie, sondern durch Kurzbeschreibungen der Texte auch einen Einblick in die Geschichte der Juden im Heiligen Römischen Reich und seinen Nachfolgestaaten. Das Lehrbuch liegt nun in einer überarbeiteten Neuauflage vor.
Zunz in Prag
(2021)
The paper addresses an under-researched chapter in the history of the Jewish Reform movement which is at the same time a commonly overlooked period in the biography of Leopold Zunz (1794–1886), one of the founding members of Wissenschaft des Judentums. By placing his eight-month appointment as a preacher to the Reform synagogue in Prague in its socio-political and biographical contexts, the article sheds new light at Zunz’s commitment for the religious renewal of Judaism. A schematic comparison between the development of the Reform movement in the German lands and the Habsburg Monarchy, at the beginning of the nineteenth century highlights the role of state involvement into internal Jewish affairs. Finally, the analysis of Zunz’s Synagogenordnung from 1836, according to the original manuscript from the National Library of Israel, allows a re-evaluation of the (Reform) synagogue as an institution for social disciplining of its members.
§ 70 Hohe See
(2024)
Die Reform der Haskala
(2021)
Der erste programmatische Text der Haskala, der durch die josephinischen Toleranzpatente inspirierte Traktat Naphtali Herz Weisels (= Hartwig Wessely, 1725–1805) Divre Schalom we-Emet, befasste sich mit der Neuorganisation des jüdischen Unterrichts. Bewusst ging Weisel in dieser Schrift, die mit grundsätzlichen Idealen traditioneller jüdischer Erziehung brach, vom Bibelvers"נחךונלרעלעיפרדוכ,םגייכקזןיאלסירוממהנ" („Erziehe den Knaben nach seinen Fähigkeiten, dann wird er auch im Alter nicht davon abweichen“, Sprüche22,6) aus. Im Unterschied zur traditionellen Betonung von Limmud, das heißt des Studiums von religiösen Schriften des Judentums, stellte Weisel Chinnuch, also Erziehung, ins Zentrumseiner Überlegungen.
Der Judenstaat Ararat
(2022)
Finger-based representation of numbers is a high-level cognitive strategy to assist numerical and arithmetic processing in children and adults. It is unclear whether this paradigm builds on simple perceptual features or comprises several attributes through embodiment. Here we describe the development and initial testing of an experimental setup to study embodiment during a finger-based numerical task using Virtual Reality (VR) and a low-cost tactile stimulator that is easy to build. Using VR allows us to create new ways to study finger-based numerical representation using a virtual hand that can be manipulated in ways our hand cannot, such as decoupling tactile and visual stimuli. The goal is to present a new methodology that can allow researchers to study embodiment through this new approach, maybe shedding new light on the cognitive strategy behind the finger-based representation of numbers. In this case, a critical methodological requirement is delivering precisely targeted sensory stimuli to specific effectors while simultaneously recording their behavior and engaging the participant in a simulated experience. We tested the device's capability by stimulating users in different experimental configurations. Results indicate that our device delivers reliable tactile stimulation to all fingers of a participant's hand without losing motion tracking quality during an ongoing task. This is reflected by an accuracy of over 95% in participants detecting stimulation of a single finger or multiple fingers in sequential stimulation as indicated by experiments with sixteen participants. We discuss possible application scenarios, explain how to apply our methodology to study the embodiment of finger-based numerical representations and other high-level cognitive functions, and discuss potential further developments of the device based on the data obtained in our testing.
Im Hochmittelalter entstehen Erzählungen, die etablierte literarische Formen und Traditionen neu verbinden: Sie sind volkssprachig, allegorisch und verwenden als Erzählform die erste Person, um in dieser Kombination, die sich zu einem die Grenzen der Einzelsprachen überschreitenden Erzähl-Format verfestigt, unterschiedlichste Themen aufzugreifen. Dieses Format, erstmals realisiert im altfranzösischen Roman de la Rose, wird die europäische Literatur mit Texten wie Dantes Divina Comedia, Guillaumes de Deguileville Pèlerinage de la Vie Humaine, William Langlands Pierce Plowman und Christines de Pizan Le Livre de la mutation de Fortune bis weit in die Neuzeit hinein prägen. Der in den Band einleitende Beitrag geht der Frage nach, ob das narrative Format dabei universell verwendet wird oder, z.B. im Rahmen der Liebesdichtung, spezifische Besonderheiten aufweist.
Perovskite semiconductors are an attractive option to overcome the limitations of established silicon based photovoltaic (PV) technologies due to their exceptional opto-electronic properties and their successful integration into multijunction cells. However, the performance of single- and multijunction cells is largely limited by significant nonradiative recombination at the perovskite/organic electron transport layer junctions. In this work, the cause of interfacial recombination at the perovskite/C-60 interface is revealed via a combination of photoluminescence, photoelectron spectroscopy, and first-principle numerical simulations. It is found that the most significant contribution to the total C-60-induced recombination loss occurs within the first monolayer of C-60, rather than in the bulk of C-60 or at the perovskite surface. The experiments show that the C-60 molecules act as deep trap states when in direct contact with the perovskite. It is further demonstrated that by reducing the surface coverage of C-60, the radiative efficiency of the bare perovskite layer can be retained. The findings of this work pave the way toward overcoming one of the most critical remaining performance losses in perovskite solar cells.
Cosmic-ray neutron sensing (CRNS) allows for the estimation of root-zone soil water content (SWC) at the scale of several hectares. In this paper, we present the data recorded by a dense CRNS network operated from 2019 to 2022 at an agricultural research site in Marquardt, Germany - the first multi-year CRNS cluster. Consisting, at its core, of eight permanently installed CRNS sensors, the cluster was supplemented by a wealth of complementary measurements: data from seven additional temporary CRNS sensors, partly co-located with the permanent ones; 27 SWC profiles (mostly permanent); two groundwater observation wells; meteorological records; and Global Navigation Satellite System reflectometry (GNSS-R). Complementary to these continuous measurements, numerous campaign-based activities provided data by mobile CRNS roving, hyperspectral im-agery via UASs, intensive manual sampling of soil properties (SWC, bulk density, organic matter, texture, soil hydraulic properties), and observations of biomass and snow (cover, depth, and density). The unique temporal coverage of 3 years entails a broad spectrum of hydro-meteorological conditions, including exceptional drought periods and extreme rainfall but also episodes of snow coverage, as well as a dedicated irrigation experiment. Apart from serving to advance CRNS-related retrieval methods, this data set is expected to be useful for vari-ous disciplines, for example, soil and groundwater hydrology, agriculture, or remote sensing. Hence, we show exemplary features of the data set in order to highlight the potential for such subsequent studies. The data are available at doi.org/10.23728/b2share.551095325d74431881185fba1eb09c95 (Heistermann et al., 2022b).
Cell-level systems biology model to study inflammatory bowel diseases and their treatment options
(2023)
To help understand the complex and therapeutically challenging inflammatory bowel diseases (IBDs), we developed a systems biology model of the intestinal immune system that is able to describe main aspects of IBD and different treatment modalities thereof. The model, including key cell types and processes of the mucosal immune response, compiles a large amount of isolated experimental findings from literature into a larger context and allows for simulations of different inflammation scenarios based on the underlying data and assumptions. In the context of a large and diverse virtual IBD population, we characterized the patients based on their phenotype (in contrast to healthy individuals, they developed persistent inflammation after a trigger event) rather than on a priori assumptions on parameter differences to a healthy individual. This allowed to reproduce the enormous diversity of predispositions known to lead to IBD. Analyzing different treatment effects, the model provides insight into characteristics of individual drug therapy. We illustrate for anti-TNF-alpha therapy, how the model can be used (i) to decide for alternative treatments with best prospects in the case of nonresponse, and (ii) to identify promising combination therapies with other available treatment options.
The color red has been implicated in a variety of social processes, including those involving mating. While previous research suggests that women sometimes wear red strategically to increase their attractiveness, the replicability of this literature has been questioned. The current research is a reasonably powered conceptual replication designed to strengthen this literature by testing whether women are more inclined to display the color red 1) during fertile (as compared with less fertile) days of the menstrual cycle, and 2) when expecting to interact with an attractive man (as compared with a less attractive man and with a control condition). Analyses controlled for a number of theoretically relevant covariates (relationship status, age, the current weather). Only the latter hypothesis received mixed support (mainly among women on hormonal birth control), whereas results concerning the former hypothesis did not reach significance. Women (N = 281) displayed more red when expecting to interact with an attractive man; findings did not support the prediction that women would increase their display of red on fertile days of the cycle. Findings thus suggested only mixed replicability for the link between the color red and psychological processes involving romantic attraction. They also illustrate the importance of further investigating the boundary conditions of color effects on everyday social processes.
Background: Patients with subjective cognitive decline (SCD) report memory deterioration and are at an increased risk of converting to Alzheimer's disease (AD) although psychophysical testing does not reveal any cognitive deficit.
Objective: Here, gustatory function is investigated as a potential predictor for an increased risk of progressive cognitive decline indicating higher AD risk in SCD.
Methods: Measures of smell and taste perception as well as neuropsychological data were assessed in patients with subjective cognitive decline (SCD): Subgroups with an increased likelihood of the progression to preclinical AD (SCD+) and those with a lower likelihood (SCD-) were compared to healthy controls (HC), patients with mild cognitive impairment and AD patients. The Sniffin' Sticks test contained 12 items with different qualities and taste was measured with 32 taste stripes (sweet, salty, bitter, sour) of different concentration.
Results: Only taste was able to distinguish between HC/SCD- and SCD+ patients.
Conclusion: This study provides a first hint of taste as a more sensitive marker than smell for detecting preclinical AD in SCD. Longitudinal observation of cognition and pathology are necessary to further evaluate taste perception as a predictor of pathological objective decline in cognition.