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The N2pc component in ERP and the lateralization effect of language on color perception
Qiang Liu1, Hong Li, Jennifer L Campos
1Key Laboratory of Cognition and Personality, Ministry of Education, Southwest University, Chongqing 400715, China.
Abstract:
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.
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Related Concept Videos
Lateralization
Language and Cognition
Color Vision
Cerebral Hemispheres
Parallel Processing
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Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...