期刊
HUMAN BRAIN MAPPING
卷 16, 期 4, 页码 219-227出版社
WILEY-LISS
DOI: 10.1002/hbm.10046
关键词
inner speech; temporal lobe; frontal lobe; modulation; functional neuroimaging
资金
- Wellcome Trust Funding Source: Medline
Monitoring one's thoughts (in the verbal modality) is thought to be critically dependent on the interaction between areas that generate and perceive inner speech in the frontal and temporal cortex, respectively. We used functional magnetic resonance imaging (fMRI) to examine the relationship between activity in these areas while the rate of inner speech generation was varied experimentally. The faster rate was associated with activation in the left inferior frontal gyrus, the right pre- and postcentral gyri and both superior temporal gyri. Thus, temporal cortical activation was associated with increasing the rate of covert articulation, in the absence of external auditory input, suggesting that there is effective fronto-temporal connectivity. Furthermore, this may provide support for the existence of feed forward models, which suggest that activity in regions responsible for verbal perception is modulated by activity in areas that generate inner speech. (C) 2002 Wiley-Liss, Inc.
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