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Visual Mismatch and Predictive Coding

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Human perception is thought to rely on a predictive model of the environment that is updated via precision-weighted prediction errors (pwPEs) when events violate expectations. This “predictive coding” view is supported by studies of the auditory mismatch negativity brain potential. However, it is less well known whether visual perception of mismatch relies on similar processes. Here we combined computational modeling and electroencephalography to test whether visual mismatch responses reflected trial-by- trial pwPEs. Applying a Bayesian model to series of face stimuli that violated expectations about color or emotional expression, we found significant modulation of brain activity by both color and emotion pwPEs. A categorical change detection model performed less convincingly. Our findings support the predictive coding interpretation of visual mismatch responses.

 

Referent

Gabor Stefanics, Department of Economics, University of Zurich

Journey Description

Map

E - Main Entrance/Reception
1 - Managing Board; sections: Infection Biology Unit, Unit of Infection Models, Laboratory Animal Science Unit, Primate Genetics Laboratory, Behavioral Ecology and Sociobiology Unit, Cognitive Ethology Laboratory, Neurobiology Laboratory, Research Coordination, Public Relations, Information Technology, Administration, Technical Support, Library.
2 - Material Delivery/Purchase
3 - Platform Degenerative Diseases
4 - Cognitive Neuroscience Laboratory
5 - Animal Husbandry
6 - Imaging Center, Functional Imaging Laboratory


Arrival by car

Leave the interstate A7 at exit "Göttingen Nord". Follow the B27 straight ahead in the direction of "Braunlage". After the third traffic light intersection turn right towards "Kliniken". Afterwards turn left onto "Robert-Koch-Straße" direction "Universität Nordbereich/Polizei". At the end of "Robert-Koch-Straße" turn right onto "Otto-Hahn-Straße", direction "Nikolausberg". The first street on the left turn onto "Kellnerweg", follow the signs "Deutsches Primatenzentrum".


Arrival by bus

The footpath from the bus stop "Kellnerweg" to the Main Entrance/Reception: 
From Bus stop "Kellnerweg" (line 21/22 and 23) Cross the road, go in the direction of the bus. At the mailbox, turn left into the footpath and proceed to the end. Turn right into the Kellnerweg. The main entrance of the DPZ is on the left side.

Date and Time 20.06.19 - 14:00 - 15:00 Signup is not required

Location Neuer Hörsaal im MFG
New Lecture Hall

Organiser

Deutsches Primatenzentrum GmbH

Kellnerweg 4

37077 Göttingen

Contact

Julia Wanda Nowak, M.Sc.

PhD Student

Cognitive Neuroscience Laboratory - Sensorimotor Group

Tel: +49 (0) 551 38 51 360

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