September 10, 2025Cerebral CortexOpen Access

Decoding semantic sound categories in early visual cortex

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Multivoxel pattern analysis revealed distinct representation of semantic sound categories, suggesting auditory processing in visual regions.

Sounds produced by humans were represented more distinctly in early visual cortex than other categories, emphasizing auditory processing.
Multivoxel pattern analysis demonstrated that early visual regions encode both animate and inanimate sounds from hierarchical categories.
Functional magnetic resonance imaging (fMRI) data was collected while participants listened to 36 natural sounds in a blindfolded state.
Whole-brain searchlight analysis indicated sound decoding in higher-level visual and multisensory brain areas, broadening functional understanding.

Pollicina et al. (2025) studied this question.

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Multivoxel pattern analysis revealed distinct representation of semantic sound categories, suggesting auditory processing in visual regions.