Effect of bilateral eye movements on frontal interhemispheric gamma EEG coherence: implications for EMDR therapy.
The use of bilateral eye movements (EMs) is an important component of Eye Movement Desensitization and Reprocessing (EMDR) therapy for posttraumatic stress disorder. The neural mechanisms underlying EMDR remain unclear. However, prior behavioral work looking at the effects of bilateral EMs on the retrieval of episodic memories suggests that the EMs enhance interhemispheric interaction. The present study examined the effects of the EMs used in EMDR on interhemispheric electroencephalogram coherence. Relative to noneye-movement controls, engaging in bilateral EMs led to decreased interhemispheric gamma electroencephalogram coherence. Implications for future work on EMDR and episodic memory are discussed.
Propper
Ruth E
RE
Psychology Department, Merrimack College, North Andover, Massachusetts 01845, USA. ruth.propper@merrimack.edu
Pierce
Jenna
J
Geisler
Mark W
MW
Christman
Stephen D
SD
Bellorado
Nathan
N
D000328:Adult; D000704:Analysis of Variance; D003118:Color Perception / Q000502:physiology; D003887:Desensitization, Psychologic / Q000379:methods*; D004569:Electroencephalography / Q000706:statistics & numerical data*; D005133:Eye Movements / Q000502:physiology*; D005143:Eyelids / Q000502:physiology; D005260:Female; D005625:Frontal Lobe / Q000502:physiology*; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D011939:Mental Recall / Q000502:physiology; D008959:Models, Neurological; D009039:Motion Perception / Q000502:physiology; D010775:Photic Stimulation; D012438:Saccades / Q000502:physiology; D013313:Stress Disorders, Post-Traumatic / Q000451:nursing* / Q000628:therapy*; D013813:Therapy, Computer-Assisted / Q000379:methods; D016896:Treatment Outcome