Color Categorization Independent of Color Naming
Siuda-Krzywicka, K., Witzel, C., Chabani, E., Taga, M., Coste, C., Cools, N., Ferrieux, S., Cohen, L., Malkinson, T. S. and Bartolomeo, P. 2019. Color Categorization Independent of Color Naming. Cell Reports. 28 (10), pp. 2471-2479.
|Authors||Siuda-Krzywicka, K., Witzel, C., Chabani, E., Taga, M., Coste, C., Cools, N., Ferrieux, S., Cohen, L., Malkinson, T. S. and Bartolomeo, P.|
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 citation||28 (10), pp. 2471-2479|
File Access Level
|Digital Object Identifier (DOI)||doi:10.1016/j.celrep.2019.08.003|
|Web address (URL)||https://doi.org/10.1016/j.celrep.2019.08.003|
|Online||03 Sep 2019|
|Publication process dates|
|Accepted||30 Jul 2019|
|Deposited||06 Sep 2019|
|Copyright holder||© 2019 The Authors|
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