Very early processing of emotional words revealed in temporoparietal junctions of both hemispheres by EEG and TMS

Article Article scientifique Article Very early processing of emotional words revealed in temporoparietal junctions of both hemispheres by EEG and TMS eng 2014 author Rochas Vincent 686919 author Rihs Tonia 628961 author Rosenberg Nadia 583612 author Landis Theodor 24453 author Michel Christoph 91629 1267-1281 10.1007/s00221-014-3843-y 24496490 0014-4819 We investigate the contribution of both hemispheres in a lateralised lexical decision paradigm with emotional and neutral words in healthy volunteers. In a first experiment, high-density EEG analysis using source imaging methods revealed early specific participation of the temporoparietal junctions (TPJ) in both hemispheres for the detection of words. Then, in an event-related transcranial magnetic stimulation experiment with the same task, the disruption of left or right TPJ compared with a control stimulation over the vertex showed a slowing that is more pronounced when words are emotional and presented in the left visual field (LVF). This indicates that interference with both left and right TPJ results in impaired processing of words that were presented to the LVF. In addition, these results point to a specific cooperative contribution of the right hemisphere in the processing of words with emotional content compared with neutral words at very early stages. Results from the two experiments can be integrated in a brain-based spatiotemporal model of the early detection of written words. Dewey 616.8 53 Département de neurosciences fondamentales 21A false 118 Organisation et plasticité des réseaux neuronaux cérébraux 148 Experimental brain research 232 4 897e99f2-94d8-4253-a615-f5fdce061500 Article (Published version) Restricted art%3A10.1007%2Fs00221-014-3843-y.pdf 519402 application/pdf restrictedAccess Faculté de médecine / Section de médecine fondamentale / Département de neurosciences fondamentales

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Very early processing of emotional words revealed in temporoparietal junctions of both hemispheres by EEG and TMS	Experimental brain research			2014	695	0

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