• Biological psychology · Oct 2014

    Aberrant EEG functional connectivity and EEG power spectra in resting state post-traumatic stress disorder: a sLORETA study.

    • Claudio Imperatori, Benedetto Farina, Maria Isabella Quintiliani, Antonio Onofri, Paola Castelli Gattinara, Marta Lepore, Valentina Gnoni, Edoardo Mazzucchi, Anna Contardi, and Giacomo Della Marca.
    • Department of Human Sciences, European University of Rome, Italy. Electronic address: imperatori.c@libero.it.
    • Biol Psychol. 2014 Oct 1;102:10-7.

    AbstractThe aim of the present study was to explore the modifications of EEG power spectra and EEG connectivity of resting state (RS) condition in patients with post-traumatic stress disorder (PTSD). Seventeen patients and seventeen healthy subjects matched for age and gender were enrolled. EEG was recorded during 5min of RS. EEG analysis was conducted by means of the standardized Low Resolution Electric Tomography software (sLORETA). In power spectra analysis PTSD patients showed a widespread increase of theta activity (4.5-7.5Hz) in parietal lobes (Brodmann Area, BA 7, 4, 5, 40) and in frontal lobes (BA 6). In the connectivity analysis PTSD patients also showed increase of alpha connectivity (8-12.5Hz) between the cortical areas explored by Pz-P4 electrode. Our results could reflect the alteration of memory systems and emotional processing consistently altered in PTSD patients.Copyright © 2014 Elsevier B.V. All rights reserved.

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