David Mathar

David Mathar Ich habe bis 2008 an der TU Kaiserslautern Mathematik studiert. In meiner Diplomarbeit habe ich das Gravitationssignal von Satelliten auf lokale Anomalien in Bereichen von hoher vulkanischer Aktivität (sogenannten Hotspots, z.B. Hawaii, Island) mit Hilfe von Wavelets untersucht. Als Quereinsteiger untersuche ich in meiner jetzigen Tätigkeit als Doktorand Adipositas-spezifische Veränderungen in belohnungsbasiertem Lernen und in Kosten-Nutzen Entscheidungsprozessen. Hierbei interessiert es mich besonders ob adipöse Probanden in der Evaluation von körperlicher Anstrengung und damit verbundener Belohnung, etwa in Form von hochkalorischen Snacks, Veränderungen im Vergleich zu normalgewichtigen Probanden aufweisen. Neben reinen Verhaltensunterschieden verwende ich fMRT, um die den Unterschieden zu Grunde liegenden neuronalen Strukturen aufzudecken. Erkenntnisse hieraus könnten aufzeigen, wie etwa über einfache Veränderungen im Nahrungsumfeld (Gestaltung von Cafeterien, Supermärkten, etc.)  Ernährungsgewohnheiten positiv beeinflusst werden könnten.

Akademische Ausbildung

08/93 – 03/02
Abitur
05/08
Dipl-Math.

Kontakt

c/o Max-Planck-Institut für Kognitions- und Neurowissenschaften
Stephanstraße 1A
D-04103 Leipzig

+49 341 9940 2253

Publikationen

Journal Articles, 2016

Dietrich, A., Hollmann, M., Mathar, D., Villringer, A., & Horstmann, A. (2016). Brain regulation of food craving: Relationships with weight status and eating behavior. International Journal of Obesity, 982-989. doi:10.1038/ijo.2016.28.
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Mathar, D., Wilkinson, L., Holl, A., Neumann, J., Deserno, L., Villringer, A., Jahanshahi, M., & Horstmann, A. (2016). The role of dopamine in positive and negative prediction error utilization during incidental learning: Insights from Positron Emission Tomography, Parkinson’s disease and Huntington’s disease. Cortex. doi:10.1016/j.cortex.2016.09.004.
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Mühlberg, C., Mathar, D., Villringer, A., Horstmann, A., & Neumann, J. (2016). Stopping at the sight of food – How gender and obesity impact on response inhibition. Appetite, 107, 663-676. doi:10.1016/j.appet.2016.08.121.
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Mathar, D., Horstmann, A., Pleger, B., Villringer, A., & Neumann, J. (2016). Is it worth the effort? Novel insights into obesity-associated alterations in cost-benefit decision-making. Frontiers in Behavioral Neuroscience, 9: 360. doi:10.3389/fnbeh.2015.00360.
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Horstmann, A., Dietrich, A., Mathar, D., Poessel, M., Villringer, A., & Neumann, J. (2015). Slave to habit? Obesity is associated with decreased behavioural sensitivity to reward devaluation. Appetite, 87, 175-183. doi:10.1016/j.appet.2014.12.212.
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Horstmann, A., Busse, F. P., Mathar, D., Mueller, K., Lepsien, J., Schlögl, H., Kabisch, S., Kratzsch, J., Neumann, J., Stumvoll, M., Villringer, A., & Pleger, B. (2011). Obesity-related differences between women and men in brain structure and goal-directed behavior. Frontiers in Human Neuroscience, 5: 58. doi:10.3389/fnhum.2011.00058.
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Kube, J., Mathar, D., Kastner, L., Horstmann, A., Villringer, A., & Neumann, J. (2015). Cardiac concomitants of decreased reinforcement learning in individuals with obesity. Poster presented at 45th Annual Meeting of the Society for Neuroscience (SfN), Chicago, IL, USA.
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Dietrich, A., Hollmann, M., Mathar, D., Villringer, A., & Horstmann, A. (2015). Weight status and eating behavior affect how the brain regulates food craving. Poster presented at 1st Leipzig International Meeting for Interdisciplinary Obesity Research (LIMIOR), Leipzig, Germany.
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Horstmann, A., Dietrich, A., Mathar, D., Poessel, M., Neumann, J., & Villringer, A. (2014). Obesity is associated with decreased behavioural sensitivity to reward devaluation. Poster presented at 30. Jahrestagung der Deutschen Adipositas Gesellschaft, Leipzig, Germany.
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Mathar, D., Horstmann, A., Villringer, A., & Neumann, J. (2013). A novel cost-benefit decision-making task reveals obesity and gender related differences in the weighing of reward and physical effort. Poster presented at Neuroeconomics: Decision Making and the Brain, Lausanne, Switzerland.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2013). The impact of obesity, gender and impulsivity on fronto-striatal system function. Poster presented at 19th Annual Meeting of the Organization of Human Brain Mapping (OHBM), Seattle, WA, USA.
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Neumann, J., Horstmann, A., Austin, K., Mathar, D., & Villringer, A. (2012). Obesity-related effects on response inhibition after the presentation of food stimuli. Poster presented at 11th Leipzig Research Festival for Life Sciences, Leipzig, Germany.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2012). The impact of obesity, gender and impulsivity on fronto-striatal system function. Poster presented at 11th Leipzig Research Festival for Life Sciences, Leipzig, Germany.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2012). The impact of obesity and gender on probabilistic stimulus response learning. Poster presented at Leipzig Research Festival for Life Sciences 2012, Leipzig, Germany.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2012). The impact of obesity and gender on probabilistic stimulus response learning. Poster presented at 28. Jahrestagung der deutschen Gesellschaft für Adipositas (DAG), Stuttgart, Germany.
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Neumann, J., Horstmann, A., Austin, K., Mathar, D., & Villringer, A. (2012). Obesity-related effects on response inhibition after the presentation of food stimuli. Poster presented at Annual Meeting of the Society for Neuroscience, New Orleans, LA, USA.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2012). The impact of obesity, gender and impulsivity on fronto-striatal system function. Poster presented at 28th Annual Meeting of the German Society for Obesity, Stuttgart, Germany.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2012). Do obesity and gender bias implicit multi-cue learning performance?. Poster presented at Tübingen Spring School ‘Methods to study the Brain in Action’, Tübingen, Germany.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2012). The impact of obesity, gender and impulsivity on fronto-striatal system function. Poster presented at Tuebingen Spring School: Methods to Study the Brain in Action, University of Tuebingen, Germany.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2011). The impact of obesity and gender on performance and strategy use in a probabilistic stimulus-response learning task. Poster presented at Annual Meeting of the Society for Neuroscience, Washington, DC, USA.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2011). Obesity- and gender-related effects on performance and strategy use in implicit mulit-cue learning. Poster presented at Annual Meeting of the Society for Neuroscience, Washington, DC, USA.
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Mathar, D., Neumann, J., Pleger, B., Villringer, A., & Horstmann, A. (2011). Do obesity and gender bias performance on implicit multi-cue learning?. Poster presented at 4th Biennal Neuroscience Conference Neurizons 2011, Max Planck Institute for Biophysical Chemistry Goettingen, Germany.
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