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SPP 198:  Mechanismen des assoziativen Lernens

Subject Area Social and Behavioural Sciences
Term from 1995 to 2001
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 5423834
 
The goal is the examination of psychophysiological mechanisms that underlie the formation of associations in healthy subjects and persons with disorders in the formation of associations (schizophrenia, patients with anxiety disorders, sociopaths). The following questions are being addressed: (1) How are various cortical cell assemblies that form the basis of associative memories bound together? Here electrophysical methods are used that examine behavior-dependent changes in cortical neuronal activity by the analysis of slow cortical potentials, local plastic changes (e. g. early components of electric potentials and magnetic fields), high-frequency synchronous oscillations as well as spontaneous EEG activity. (2) Which cortical and subcortical brain regions are involved in the formation of associative connections? This analysis is performed by using neuropsychological examinations of patients with specific brain lesions (e. g., cerebellum, amygdala) and animal experiments. (3) What is the relationship of peripheral physiological measures and central variables in associative processing? (4) What are the rules of the encoding of conditioned and unconditioned stimuli, their contingency and the elicitation of responses. This includes studies that study the characterstics of optimal association formation, work in evaluative conditioning, the role of the awareness of the contingency and studies on the role of biological dispositions.
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