The N2pc component in ERP and the lateralization effect of language on color perception.
This study examined the electrophysiological bases of the effect of language on color perception. In a visual search task, a target was presented to the left or right visual field. The target color was either from the same category as a set of distractors (within-category condition) or from a different category (between-category condition). For both category conditions, the targets elicited a clear N2pc (N2-posterior-contralateral) component in the event-related potential (ERP) in the contralateral hemisphere. In the left hemisphere only, the N2pc amplitude for the between-category condition was larger than that for the within-category condition. These results indicate that the N2pc could be used as an index to describe the lateralization effect of language on color perception.
Liu
Qiang
Q
Key Laboratory of Cognition and Personality, Ministry of Education, Southwest University, Chongqing 400715, China.
Li
Hong
H
Campos
Jennifer L
JL
Wang
Qi
Q
Zhang
Ye
Y
Qiu
Jiang
J
Zhang
Qinglin
Q
Sun
Hong-Jin
HJ
D000328:Adult; D001921:Brain / Q000502:physiology*; D003118:Color Perception / Q000502:physiology*; D005071:Evoked Potentials / Q000502:physiology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D007802:Language; D008297:Male; D010775:Photic Stimulation; D011930:Reaction Time