Prediction suppression in monkey inferotemporal cortex depends on the conditional probability between images
Year: 2015
Type: article
Abstract: When monkeys view two images in fixed sequence repeatedly over days and weeks, neurons in area TE of the inferotemporal cortex come to exhibit prediction suppression. The trailing image elicits only a weak response when presented following the leading image that preceded it during training. Induction of prediction suppression might depend either on the contiguity of the images, as determined by their co-occurrence and captured in the measure of joint probability P(A,B), or on their contingency, as determined by their correlation and as captured in the measures of conditional probability P(A|B) and P(B|A). To distinguish between these possibilities, we measured prediction suppression after imposing training regimens that held P(A,B) constant but varied P(A|B) and P(B|A). We found that reducing either P(A|B) or P(B|A) during training attenuated prediction suppression as measured during subsequent testing. We conclude that prediction suppression depends on contingency, as embodied in the predictive relations between the images, and not just on contiguity, as embodied in their co-occurrence.
Source: Journal of Neurophysiology
Language: English
Subfield: Cognitive Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: bronze
Awards: Cortical Cells Circuits Connectivity and Cognition in Schizophrenia, G4198488157, Prediction in Visual Cortex, Computational and Neural Mechanisms of Context Processing in Schizophrenia, Inferotemporal Cortex and Object Vision, MULTIDISCIPLINARY NMR CENTER FOR BIOMEDICAL RESEARCH, G9000250153, G9000328959, Core Grant for Vision Research
OpenAlex ID: W2264903079