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Seminar: 11/21 - Michal Lavidor

11:00 to 12:30 PM      at:  Tolman 5101

Department of Psychology, University of Hull and Bar Ilan University
"Facilitation of semantic processing with transcranial magnetic stimulation."

Previous research suggests that the right hemisphere (RH) may contribute uniquely to the processing of metaphoric language. Transcranial Magnetic Stimulation (TMS) of the right posterior superior temporal sulcus (rPSTS) disrupted processing of novel but not conventional metaphors, while TMS over the left inferior frontal gyrus (IFG) selectively impaired processing of conventional but not novel metaphors. This finding confirms the specialization of the RH in the activation of a broader range of related meanings than the LH, including novel, nonsalient meanings. The other, surprising findings was the faster responses to novel metaphors following TMS over the left PSTS. I will discuss possible accounts for such facilitation within a broader framework of TMS-induced facilitation of semantic processing of various tasks.