Zur hemispha¨rendominanz fu¨r sprache und rechnen: Elektrophysiologische korrelate einer linksdominanz bei linksha¨ndern |
| |
Authors: | Richard Jung Eckart Altenmu
ller Bruno Natsch |
| |
Institution: | Richard Jung, Eckart Altenmu¨ller,Bruno Natsch |
| |
Abstract: | Slow brain potentials were recorded in left-handers and right-handers during: (i) processing of language and mental arithmetic tasks, without vocalization, and (ii) subsequent writing down of the answers with either the right or left hand. Left-sided laterality of negative potentials was taken as evidence of hemispheric dominance. It appeared during the processing of words and numbers in 26 of the 30 left-handers and was localized mainly in the left frontal and temporal parietal regions. Similar results were found with the right-handers. This electrophysiological evidence indicates that the left hemisphere is dominant for language and calculation in the vast majority of left-handers. Only when writing with either their left or right hand do left-handers show less left-sided laterality than right-handers. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |