Color naming and categorization depend on distinct functional brain networks
Update: 2021-11-02
Description
Link to bioRxiv paper:
http://biorxiv.org/cgi/content/short/2020.04.13.038836v1?rss=1
Authors: Siuda-Krzywicka, K., Witzel, C., Bartolomeo, P., Cohen, L.
Abstract:
Naming a color can be understood as an act of categorization, i.e. identifying it as a member of a category of colors that are referred to by the same name. But are naming and categorization equivalent cognitive processes, and consequently rely on the same neural substrates? Here, we used task and resting-state fMRI, as well as behavioral measures to identify functional brain networks that are modulated by naming and categorization of colors. Color naming and categorization performance differentially modulated resting-state connectivity networks spanning from the color-sensitive regions in the ventro-occipital cortex. Color naming response times were correlated with the connectivity between the left posterior Color region, the left medial temporal gyrus, and the left angular gyrus; whereas color categorization involved the connectivity between the bilateral posterior Color regions, the left frontal, right temporal and bilateral parietal areas. The networks supporting naming and categorization did not overlap, suggesting that the two processes rely on different neural mechanisms.
Copy rights belong to original authors. Visit the link for more info
http://biorxiv.org/cgi/content/short/2020.04.13.038836v1?rss=1
Authors: Siuda-Krzywicka, K., Witzel, C., Bartolomeo, P., Cohen, L.
Abstract:
Naming a color can be understood as an act of categorization, i.e. identifying it as a member of a category of colors that are referred to by the same name. But are naming and categorization equivalent cognitive processes, and consequently rely on the same neural substrates? Here, we used task and resting-state fMRI, as well as behavioral measures to identify functional brain networks that are modulated by naming and categorization of colors. Color naming and categorization performance differentially modulated resting-state connectivity networks spanning from the color-sensitive regions in the ventro-occipital cortex. Color naming response times were correlated with the connectivity between the left posterior Color region, the left medial temporal gyrus, and the left angular gyrus; whereas color categorization involved the connectivity between the bilateral posterior Color regions, the left frontal, right temporal and bilateral parietal areas. The networks supporting naming and categorization did not overlap, suggesting that the two processes rely on different neural mechanisms.
Copy rights belong to original authors. Visit the link for more info
Comments
In Channel
Download from Google Play
Download from App Store
United States00:00
00:00
x
