期刊
CEREBRAL CORTEX
卷 23, 期 4, 页码 958-966出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/cercor/bhs090
关键词
adaptation; auditory cortex; inferior prefrontal cortex; neuronal representation; superior temporal sulcus
资金
- United Kingdom Biotechnology and Biological Sciences Research Council (BBSRC) [BB/E003958/1]
- Biotechnology and Biological Sciences Research Council [BB/E003958/1] Funding Source: researchfish
- BBSRC [BB/E003958/1] Funding Source: UKRI
Normal listeners effortlessly determine a person's gender by voice, but the cerebral mechanisms underlying this ability remain unclear. Here, we demonstrate 2 stages of cerebral processing during voice gender categorization. Using voice morphing along with an adaptation-optimized functional magnetic resonance imaging design, we found that secondary auditory cortex including the anterior part of the temporal voice areas in the right hemisphere responded primarily to acoustical distance with the previously heard stimulus. In contrast, a network of bilateral regions involving inferior prefrontal and anterior and posterior cingulate cortex reflected perceived stimulus ambiguity. These findings suggest that voice gender recognition involves neuronal populations along the auditory ventral stream responsible for auditory feature extraction, functioning in pair with the prefrontal cortex in voice gender perception.
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