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Time-Frequency Analysis of Mu Rhythm Activity during Picture and Video Action Naming Tasks

Department of Speech-Language Pathology, Midwestern University, 555 31st Street, Downers Grove, IL 60304, USA
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Brain Sci. 2017, 7(9), 114; https://doi.org/10.3390/brainsci7090114
Received: 31 July 2017 / Revised: 24 August 2017 / Accepted: 30 August 2017 / Published: 6 September 2017
This study used whole-head 64 channel electroencephalography to measure changes in sensorimotor activity—as indexed by the mu rhythm—in neurologically-healthy adults, during subvocal confrontation naming tasks. Independent component analyses revealed sensorimotor mu component clusters in the right and left hemispheres. Event related spectral perturbation analyses indicated significantly stronger patterns of mu rhythm activity (pFDR < 0.05) during the video condition as compared to the picture condition, specifically in the left hemisphere. Mu activity is hypothesized to reflect typical patterns of sensorimotor activation during action verb naming tasks. These results support further investigation into sensorimotor cortical activity during action verb naming in clinical populations. View Full-Text
Keywords: action naming; verbs; EEG; mu rhythm; event related spectral; perturbations; sensorimotor integration action naming; verbs; EEG; mu rhythm; event related spectral; perturbations; sensorimotor integration
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Cuellar, M.E.; Del Toro, C.M. Time-Frequency Analysis of Mu Rhythm Activity during Picture and Video Action Naming Tasks. Brain Sci. 2017, 7, 114.

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