Effects of category-specific costs on neural systems for perceptual decision-making.

Journal article

Perceptual judgments are often biased by prospective losses, leading to changes in decision criteria. Little is known about how and where sensory evidence and cost information interact in the brain to influence perceptual categorization. Here we show that prospective losses systematically bias the perception of noisy face-house images. Asymmetries in category-specific cost were associated with enhanced blood-oxygen-level-dependent signal in a frontoparietal network. We observed selective acti...

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Authors: Fleming, S; Whiteley, L; Hulme, O; Sahani, M; Dolan, R

• Journal: Journal of neurophysiology
• Volume: 103
• Issue: 6
• Pages: 3238-3247
• Publication date: 2010-06-01
• DOI: 10.1152/jn.01084.2009
• EISSN: 1522-1598
• ISSN: 0022-3077
• Language: English
• Keywords: Magnetic Resonance Imaging; Female; Humans; Reaction Time; Bayes Theorem; Judgment; Pattern Recognition, Visual; Brain Mapping; Cerebral Cortex; Photic Stimulation; Psychophysics; Decision Making; Perception; Adult; Male; Oxygen; Image Processing, Computer-Assisted; Young Adult; Face