期刊
CORTEX
卷 65, 期 -, 页码 184-194出版社
ELSEVIER MASSON, CORPORATION OFFICE
DOI: 10.1016/j.cortex.2015.01.012
关键词
Conscious visual perception; Face and body emotion; Transcranial magnetic stimulation; Posterior superior temporal sulcus; Binocular rivalry
资金
- TANGO (Future and Emerging Technologies (PET)) programme within the FP 7 [249858]
- European Research Council under the European Union's Seventh Framework Programme, ERC Advanced Grant [295673]
- Italian Ministry of Health (Grant 616) [RC11.G, RF-2010-2312912]
- University of Rome Sapienza Progetti di Ricerca [C26A122ZPS]
- John D. and Catherine T. MacArthur Foundation Research Network on Early Experience and Brain Development
The posterior Superior Temporal Suclus (pSTS) represents a central hub in the complex cerebral network for person perception and emotion recognition as also suggested by its heavy connections with face- and body-specific cortical (e.g., the fusiform face area, FFA and the extrastriate body area, EBA) and subcortical structures (e.g., amygdala). Information on whether pSTS is causatively involved in sustaining conscious visual perception of emotions expressed by faces and bodies is lacking. We explored this issue by combining a binocular rivalry procedure (where emotional and neutral face and body postures rivaled with house images) with off-line, 1-Hz repetitive transcranial magnetic stimulation (rTMS). We found that temporary inhibition of the right pSTS reduced perceptual dominance of fearful faces and increased perceptual dominance of fearful bodies, while leaving unaffected the perception of neutral face and body images. Inhibition of the vertex had no effect on conscious visual perception of neutral or emotional face or body stimuli. Thus, the right pSTS plays a causal role in shortening conscious vision of fearful faces and in prolonging conscious vision of fearful bodies. These results suggest that pSTS selectively modulates the activity of segregated networks involved in the conscious visual perception of emotional faces or bodies. We speculate that the opposite role of the right pSTS for conscious perception of fearful face and body maybe explained by the different connections that this region entertains with face- and body-selective visual areas as well as with amygdalae and premotor regions. (C) 2015 Elsevier Ltd. All rights reserved.
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