Időpont: Szerda, dec. 15. 16h

Helyszín: Pázmány P. Kat. Egyetem - ITK (1083, Práter utca 50/a) Kari Tanácsterem (204-es szoba)

Univ.-Prof. Dr. Stefan R. Schweinberger

Department for General Psychology and DFG Research Unit "Person Perception" (PPRU)

Institute of Psychology, Friedrich-Schiller-University of Jena

http://www2.uni-jena.de/svw/allgpsy/stefan.htm

Plasticity and Adaptive Neuronal Coding in the Perception of Social Stimuli: Faces and Voices

Like the perception of aesthetic stimuli, the perception of a person’s age, emotional expression or attractiveness has often been suggested to have a “subjective component”, and to exhibit considerable differences between observers. Here I will discuss evidence showing that considerable differences in perceiving physically identical stimuli can also be induced within a given observer. This plasticity of our perceptions arises through both transient effects of perceptual adaptation and more long-lasting effects of perceptual expertise. I will show behavioural and neurophysiological evidence suggesting adaptive, and often contrastive, neuronal coding of complex social stimuli. I will argue that our subjective perception of a person’s age, gender, eye gaze direction, and even identity is determined by the neuronal representation of the physical stimulus. This representation depends on both the outside world (i.e., the physical person stimulus and the spatiotemporal context within which it is perceived), and the brain’s world with its principles of neuronal encoding of high-level social information from facial and vocal signals.

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