Abstract：
:Color is continuous, yet we group colors into discrete categories associated with color names (e.g., yellow, blue). Color categorization is a case in point in the debate on how language shapes human cognition. Evidence suggests that color categorization depends on top-down input from the language system to the visual cortex. We directly tested this hypothesis by assessing color categorization in a stroke patient, RDS, with a rare, selective deficit in naming visually presented chromatic colors, and relatively preserved achromatic color naming. Multimodal MRI revealed a left occipito-temporal lesion that directly damaged left color-biased regions, and functionally disconnected their right-hemisphere homologs from the language system. The lesion had a greater effect on RDS's chromatic color naming than on color categorization, which was relatively preserved on a nonverbal task. Color categorization and naming can thus be independent in the human brain, challenging the mandatory involvement of language in adult human cognition.
journal_name
Cell Repjournal_title
Cell reportsauthors
Siuda-Krzywicka K,Witzel C,Chabani E,Taga M,Coste C,Cools N,Ferrieux S,Cohen L,Seidel Malkinson T,Bartolomeo Pdoi
10.1016/j.celrep.2019.08.003subject
Has Abstractpub_date
2019-09-03 00:00:00pages
2471-2479.e5issue
10issn
2211-1247pii
S2211-1247(19)31026-5journal_volume
28pub_type
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