[CCoE Notice] The Synchronized Brain in Emotional Processing: Lecture by Didier Grandjean

[Grayson, Audrey A]

Title: The Synchronized Brain in Emotional Processing
Speaker: Didier Grandjean, Ph.D., University of Geneva, Switzerland
Date:  Wednesday, November 12, 2014
Time:  11:00 am to 12:30 pm
Cost: FREE and open to the public
Location:  Health and Biomedical Sciences Building, Room 267 (SBHB-267) Main Campus, University of Houston
Contact and Phone Number:  Ioannis Pavlidis, Ph.D., 713-743-0101
Link:  http://www.cs.uh.edu/news-events/seminars/2014/1112-grandjean.php

Summary: Emotion recognition in face, body, gesture, and voice is a crucial ability for survival and in social contexts. The brain regions subserving the processing of emotional prosody have been investigated using functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) but few studies investigated direct electrical neuronal activity using intracranial recordings in humans. Previous studies have shown the involvement of the amygdala and the orbito-frontal cortex in the processing of emotional prosody. Using local field potentials (LFPs) recordings in humans, Professor Grandjean investigated whether anatomical connections between these two brain regions underlie the functional integration of attended and unattended processing of emotional voices. His results showed that the processing of unattended emotional prosody compared to attended emotional prosody triggered an onset-locked enhanced functional coupling between amygdala and medial orbito-frontal regions mainly in the beta frequencies band. In contrast, the data revealed a significant early increase in phase-locking synchronization between these two regions in the theta and alpha frequency range for attended angry prosody compared to both unattended angry and neutral prosodies. These results highlight the functional selectivity of different frequency bands within the amygdala and medial orbito-frontal network in response to attended or unattended emotional stimuli.



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