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MEMORY ENCODING OF EMOTIONAL AND NEUTRAL PICTURES: AUTONOMIC, BEHAVIORAL AND ELECTROCORTICAL RESPONSES Mathias Weymar1, Christiane A. In a passive picture-viewing paradigm 90 stimuli (30 unpleasant, 30 neutral, 30 pleasant) were presented for 3 seconds to 15 volunteers.

After one week, participants returned to the laboratory for a memory test.

THE GENETICS OF FEAR LEARNING: FEAR CONDITIONED STARTLE POTENTIATION AND A POLYMORPHISM IN THE SEROTONIN TRANSPORTER GENE Tina B. However, a functional polymorphism in the serotonin transporter promoter region (5-HTTLPR) has been linked both to anxiety disorders and to amygdala reactivity.

Because fear potentiated startle is a validated measure of fear and reflects amygdala activity, we sought to reconcile these competing approaches to anxiety disorder by examining fear conditioning in participants genotyped for the 5-HTTLPR.

These data suggest that, carrying one s-allele predisposes for enhanced fear conditioning and carrying two s-alleles for slow extinction of conditioned fear. Hamm1 ' University of Greifswald, 2University of Konstanz Descriptors: EEG/ERP, emotion, memory Numerous studies have demonstrated a facilitation of memory for emotionally arousing events.

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