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Feedback from human posterior parietal cortex enables visuospatial category representations as early as primary visual cortex

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Categorization is a fundamental cognitive process, whereby the brain assigns meaning to sensory stimuli. Previous studies have found category representations in prefrontal cortex and posterior parietal cortex (PPC). However, these… Click to show full abstract

Categorization is a fundamental cognitive process, whereby the brain assigns meaning to sensory stimuli. Previous studies have found category representations in prefrontal cortex and posterior parietal cortex (PPC). However, these higher‐order areas lack the fine‐scale spatial representations of early sensory areas, and it remains unclear what mechanisms enable flexible categorization based on fine‐scale features.

Keywords: posterior parietal; parietal cortex; feedback human; cortex; representations early; category representations

Journal Title: Brain and Behavior
Year Published: 2018

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