Blättern Human- und Zahnmedizin nach "Gruber, Oliver Prof. Dr." Betreuer
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Pathophysiologische Veränderungen spezifischer neurofunktioneller Systeme bei Schizophrenie
(2021-04-06)Schizophrenia is a frequent psychiatric disease with a heterogeneous clinical appearance involving a dysfunction of reward processing. In the present work schizophrenic patients and matched control subjectcs were investigated ... -
Neurofunktionelle Alterseffekte in Regionen des mesolimbischen dopaminergen Belohnungsystems unter Verwendung des Desire-Reason-Dilemma-Paradigmas
(2020-10-30)Rewards establish goal-directed behaviors and motivate humans to exert great efforts in a variety of tasks. Dysfunctions in learning and unlearning reward behaviors are linked to a variety of psychiatric diseases. A lot ... -
Der Einfluss von Urbanicity auf Stressverarbeitungsmechanismen
(2017-04-20)The percentage of the world’s population living in cities is rising continuously. According to estimations of the United Nations, in the year 2050 70% of the world’s population will live in cities. In Germany, already 74% ... -
Beeinträchtigungen der Arbeitsgedächtnisleistung bei Patienten mit Schizophrenie. Eine Replikationsstudie unter Verwendung einer Normierungsstichprobe
(2016-09-09)Working memory deficits are core findings in patients with schizophrenia. But until now there is not a study that shows those impairments in comparison to a norm sample. We generated sex-, age- and education-dependent ... -
Neuronale Korrelate von Placeboeffekt, Furchtextinktion und willentlicher Emotionsregulation
(2014-08-04)BACKGROUND: It is important to control negative affect and perceived fear in normal life. Problems in emotion regulation lead to diseases like anxiety disorder. Different experimental domains like fear extinction, placebo ... -
Funktionell-hirnbildgebende Untersuchung zu endophänotypischen Markern bei erstgradigen Angehörigen schizophrener Patienten
(2013-11-12)Thanks to the current development of modern neuro-imaging, a greater understanding of the neural correlates of cognitive processing has been achieved. Because of this advancement, it is now possible to analyze the identified ... -
Funktionell- hirnbildgebende Untersuchung zu endophänotypischen Markern bei erstgradigen Angehörigen bipolarer Patienten
(2013-11-12)Background: Bipolar disorder is marked by multifactorial etiology. As there is no evidence for a uniform etiology the search for neurobiological correlates, so called endophenotypes, are an important part of the research ... -
Interindividuelle Unterschiede der Impulsivität und Impulskontrolle
(2013-04-04)In the present study I used functional magnetic resonance imaging to assess the neural mechanisms who allow people to resist immediate rewards to achieve a superordinate long-term goal. Low and high extreme impulsivity ... -
Eine Voxel-basierte morphometrische Untersuchung der Effekte von Suszeptibilitätsgenen der Schizophrenie auf hirnregionale Volumina der grauen Substanz
(2012-09-28)The etiology of schizophrenia and other psychiatric disorders is characterized by a strong genetic influence which was confirmed in family, twin and adoption studies. Within genome wide coupling and association studies ... -
Decis-State: Einfluss des Sättigungsgrades auf das Entscheidungsverhalten und die funktionelle Interaktion neuronaler Systeme - Eine fMRT-Studie
(2012-06-26)Obesity is one of the most pressing issues in modern medicine. Previous studies indicated that food images activate distinct brain areas such as the nucleus accumbens (Nacc), ventral tegmental Area (VTA), orbitofrontal ... -
Verarbeitung des relativen Belohnungswertes im menschlichen Gehirn. Eine Metaanalyse hirnbildgebender Studien.
(2012-02-06)In human life rewards function as an incentive for goal-directed behaviour and contribute amongst others to learning and optimising behaviour. By functional imaging using fmri and pet, ... -
Die Kraft der Einbildung. Wie mentales Imagery die Wahrnehmung ängstlicher Gesichter verändert. Eine fMRT-Studie.
(2011-03-03)Our expectancies strongly shape our perception of the world. Sometimes preconceptions about stimulus characteristics can even bias the sensory system for illusory percepts. The present ...