期刊
NEUROREPORT
卷 11, 期 11, 页码 2357-2361出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00001756-200008030-00005
关键词
abstract nouns; auditory word processing; concrete nouns; EEG coherence; memory encoding; neuronal synchronization; spoken language; theta oscillations
Functional and topographical differences between processing of spoken nouns which were remembered or which were forgotten were shown by means of EEG coherence analysis. Later recalled nouns were related with increased neuronal synchronization (= cooperation) between anterior and posterior brain regions regardless of presented word category (either concrete or abstract nouns). However, theta coherence exhibited topographical differences during encoding of concrete acid abstract nouns whereby former were related with higher short-range (mainly intrahemispheric), later with higher long-range (mainly interhemispheric) coherence. Thus, theta synchronization possibly is a general phenomenon always occurring if task demand increases and more efficient information processing is required. Measurement of EEG coherence yields new information about the neuronal interaction of involved brain regions during memory encoding of different word classes. NeuroReport 11:2357-2361 (C) 2000 Lippincott Williams & Wilkins.
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