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.
Key Laboratory of Cognition and Personality, Ministry of Education, Southwest University, Chongqing 400715, China.
Qiang
Q
Liu
Hong
H
Li
Jennifer L
JL
Campos
Qi
Q
Wang
Ye
Y
Zhang
Jiang
J
Qiu
Qinglin
Q
Zhang
Hong-Jin
HJ
Sun
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