title: Hemodynamic response to emotional memory recall with eye movement.
abstract: Previous studies on rapid eye movement sleep have demonstrated the effect of eye movement on emotional memory. However, the brain mechanism involved in the influence of the eye movement on the emotional recall remains unclear. We investigated the prefrontal response during an emotional memory recall with and without eye movement. Ten healthy volunteers were recruited. The changes in concentration of oxygenated hemoglobin ([oxy-Hb]) in the prefrontal cortex were examined using near-infrared spectroscopy (NIRS) during a task that involved emotional recall with and without eye movement. Six participants demonstrated a significant increase in [oxy-Hb] during emotional recall, and the level of increase was reduced through repeated emotional recall with eye movement. The results suggest that eye movement is associated with a reduction in the hemodynamic response to emotional memory recall.
authors.affiliation: Department of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. otanit-tky@umin.ac.jp
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Ohtani
authors.forename: Koji
authors.initials: K
authors.lastname: Matsuo
authors.forename: Kiyoto
authors.initials: K
authors.lastname: Kasai
authors.forename: Tadafumi
authors.initials: T
authors.lastname: Kato
authors.forename: Nobumasa
authors.initials: N
authors.lastname: Kato
mesh_terms: D000328:Adult; D004644:Emotions / Q000502:physiology*; D005133:Eye Movements / Q000502:physiology*; D005260:Female; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008297:Male; D011939:Mental Recall / Q000502:physiology*; D008875:Middle Aged; D009483:Neuropsychological Tests; D010100:Oxygen / Q000097:blood; D010108:Oxyhemoglobins; D017397:Prefrontal Cortex / Q000098:blood supply*; D019265:Spectroscopy, Near-Infrared
chemical_list: D010108:Oxyhemoglobins; D010100:Oxygen