期刊
NEUROIMAGE
卷 109, 期 -, 页码 27-34出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.neuroimage.2015.01.016
关键词
Emotion; Prosody; Voice; DTI; Probabilistic fiber tracking; Auditory pathways
资金
- Swiss National Science Foundation (SNSF) [105314_124572/1-DG]
- NCCR in Affective Sciences at the University of Geneva [51NF40-104897-DG]
- Swiss National Science Foundation (SNF) [105314_124572] Funding Source: Swiss National Science Foundation (SNF)
Dorsal and ventral pathways for syntacto-semantic speech processing in the left hemisphere are represented in the dual-stream model of auditory processing. Here we report new findings for the right dorsal and ventral temporo-frontal pathway during processing of affectively intonated speech (i.e. affective prosody) in humans, together with several left hemispheric structural connections, partly resembling those for syntacto-semantic speech processing. We investigated white matter fiber connectivity between regions responding to affective prosody in several subregions of the bilateral superior temporal cortex (secondary and higher-level auditory cortex) and of the inferior frontal cortex (anterior and posterior inferior frontal gyrus). The fiber connectivity was investigated by using probabilistic diffusion tensor based tractography. The results underscore several so far underestimated auditory pathway connections, especially for the processing of affective prosody, such as a right ventral auditory pathway. The results also suggest the existence of a dual-stream processing in the right hemisphere, and a general predominance of the dorsal pathways in both hemispheres underlying the neural processing of affective prosody in an extended temporo-frontal network. (C) 2015 Elsevier Inc. All rights reserved.
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