Presentation Title

Neural Activity in the Visual Cortex Predicts Semantic Decisions

Faculty Mentor

Jesse J. Bengson PhD

Start Date

18-11-2017 11:00 AM

End Date

18-11-2017 11:15 AM

Location

15-1808

Session

Social Science 1

Type of Presentation

Oral Talk

Subject Area

behavioral_social_sciences

Abstract

Categorizing incoming visual information from our environment is essential for deciding how to react to situations. Visual search tasks provide evidence that early semantic categorization in the visual cortex occurs soon after the presentation of an image, biasing visual processing in favor of a specific category (Peelen, Fei-Fei & Kastner, 2009). Considering those findings, we incorporated an attentional control paradigm using an arbitrary cue to generate semantic expectancies. Using EEG recording, our results suggest that different magnitudes of activation in thevisual cortex soon after the presentation of the arbitrary cue predict decisions to expect a broad semantic category.

Keywords: decisions-making, visual perception, vision, attention, EEG, semantic categorization

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Nov 18th, 11:00 AM Nov 18th, 11:15 AM

Neural Activity in the Visual Cortex Predicts Semantic Decisions

15-1808

Categorizing incoming visual information from our environment is essential for deciding how to react to situations. Visual search tasks provide evidence that early semantic categorization in the visual cortex occurs soon after the presentation of an image, biasing visual processing in favor of a specific category (Peelen, Fei-Fei & Kastner, 2009). Considering those findings, we incorporated an attentional control paradigm using an arbitrary cue to generate semantic expectancies. Using EEG recording, our results suggest that different magnitudes of activation in thevisual cortex soon after the presentation of the arbitrary cue predict decisions to expect a broad semantic category.

Keywords: decisions-making, visual perception, vision, attention, EEG, semantic categorization