Gender differences in the neural network of facial mimicry of smiles

Article Article scientifique Article Gender differences in the neural network of facial mimicry of smiles – An rTMS study eng 2015 author Korb Sebastian 638365 author Malsert Jennifer 768982 author Rochas Vincent 686919 author Rihs Tonia 628961 author Rieger Sebastian Walter 667934 author Schwab Samir 666857 author Niedenthal Paula M. author Grandjean Didier Maurice 502006 101-114 10.1016/j.cortex.2015.06.025 0010-9452 http://linkinghub.elsevier.com/retrieve/pii/S0010945215002294 Under theories of embodied emotion, exposure to a facial expression triggers facial mimicry. Facial feedback is then used to recognize and judge the perceived expression. However, the neural bases of facial mimicry and of the use of facial feedback remain poorly understood. Furthermore, gender differences in facial mimicry and emotion recognition suggest that different neural substrates might accompany the production of facial mimicry, and the processing of facial feedback, in men and women. Here, repetitive transcranial magnetic stimulation (rTMS) was applied to the right primary motor cortex (M1), the right primary somatosensory cortex (S1), or, in a control condition, the vertex (VTX). Facial mimicry of smiles and emotion judgments were recorded in response to video clips depicting changes from neutral or angry to happy facial expressions. While in females rTMS over M1 and S1 compared to VTX led to reduced mimicry and, in the case of M1, delayed detection of smiles, there was no effect of TMS condition for males. We conclude that in female participants M1 and S1 play a role in the mimicry and in the use of facial feedback for accurate processing of smiles. Facial mimicry Gender differences Motor cortex Somatosensory cortex TMS Dewey 128.37 Dewey 150 Dewey 616.8 15 Centre interfacultaire en sciences affectives 0D8 53 Département de neurosciences fondamentales 21A 108 Section de psychologie 71 false 1241 Affective sciences 594 Neuroscience de l'émotion et dynamiques affectives (NEAD) Cortex 70 4cef0dd4-b508-451c-9748-c128995b28f7 Article (Published version) Public Korb, Malsert 2015 Gende.pdf 925880 application/pdf openAccess Centres et instituts / Centre interfacultaire en sciences affectives Faculté de médecine / Section de médecine fondamentale / Département de neurosciences fondamentales Faculté de psychologie et des sciences de l'éducation / Section de psychologie

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Gender differences in the neural network of facial mimicry of smiles – An rTMS study	Cortex			2015	733	801

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Schwab, Samir