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- W3000231625 abstract "The human brain is able to learn difficult categorization tasks, even ones that have linearly inseparable boundaries; however, it is currently unknown how it achieves this computational feat. We investigated this by training participants on an animal categorization task with a linearly inseparable prototype structure in a morph shape space. Participants underwent fMRI scans before and after 4 days of behavioral training. Widespread representational changes were found throughout the brain, including an untangling of the categories' neural patterns that made them more linearly separable after behavioral training. These neural changes were task dependent, as they were only observed while participants were performing the categorization task, not during passive viewing. Moreover, they were found to occur in frontal and parietal areas, rather than ventral temporal cortices, suggesting that they reflected attentional and decisional reweighting, rather than changes in object recognition templates. These results illustrate how the brain can flexibly transform neural representational space to solve computationally challenging tasks." @default.
- W3000231625 created "2020-01-23" @default.
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- W3000231625 date "2020-12-01" @default.
- W3000231625 modified "2023-10-07" @default.
- W3000231625 title "Cortical Transformation of Stimulus Space in Order to Linearize a Linearly Inseparable Task" @default.
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- W3000231625 doi "https://doi.org/10.1162/jocn_a_01533" @default.
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