Journal
ELIFE
Volume 10, Issue -, Pages -Publisher
eLIFE SCIENCES PUBL LTD
DOI: 10.7554/eLife.60830
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Funding
- National Institutes of Health [2-RO1EY014970-06]
- Simons Foundation (SCGB) [325500]
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The study investigates whether plasticity of individual IT neurons underlies human core object recognition behavioral changes induced with unsupervised visual experience. The results suggest that a model combining a single-neuron plasticity model with an IT population-to-recognition-behavior-linking model, constrained by neurophysiological data, largely predicts human learning effects.
Temporal continuity of object identity is a feature of natural visual input and is potentially exploited - in an unsupervised manner - by the ventral visual stream to build the neural representation in inferior temporal (IT) cortex. Here, we investigated whether plasticity of individual IT neurons underlies human core object recognition behavioral changes induced with unsupervised visual experience. We built a single-neuron plasticity model combined with a previously established IT population-to-recognition-behavior-linking model to predict human learning effects. We found that our model, after constrained by neurophysiological data, largely predicted the mean direction, magnitude, and time course of human performance changes. We also found a previously unreported dependency of the observed human performance change on the initial task difficulty. This result adds support to the hypothesis that tolerant core object recognition in human and non-human primates is instructed - at least in part - by naturally occurring unsupervised temporal contiguity experience.
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