Abstract
Event-related brain potentials were measured when 14 normal young participants were performing delay response tasks. During the delay interval after the disappearance of Chinese characters and spatial stimulus, P260 and late positive component (LPC) were generated in centro-frontal areas, N150 and late negative component (LNC) were elicited in parieto-occipital areas. Chinese character task changed from the right hemispheric dominance indicated by P260 to the more activation than spatial task between 400–800ms at the centro-anterior areas. Spatial task changed from the balance of brain hemispheres to right hemispheric dominance. The posterior of scalp have not difference. The results provided electrophysiologic evidences of dissociation and dynamic hemispheric dominance of maintaining Chinese characters and spatial Information in working memory.
| Keywords: | working memory; Chinese characters and spatial information; hemispheric dominance; delay response task; event-related potentials (ERPs) |
|---|
[Chinese Version | Index | Acta Psychologica Sinica | Other Journals | Subscription form | Enquiry ]
Mail any comments and suggestions to
hkier-journal@cuhk.edu.hk .