title: Cerebrovascular response to cognitive tasks and hyperventilation measured by multi-channel near-infrared spectroscopy.
abstract: We assessed the cerebral blood volume response in the bilateral frontal area in 10 healthy subjects during the design fluency task, verbal fluency task, and hyperventilation measured by 24-channel near-infrared spectroscopy. Oxygenated and total hemoglobin increased during the design fluency task and verbal fluency task and decreased during hyperventilation bilaterally, while deoxygenated hemoglobin did not change. The test-retest reliability examined in five subjects was acceptable to assess the cerebrovascular response to cognitive tasks and hyperventilation.
authors: Kawaguchi Hospital, Saitama, Japan. awatanab-tky@umin.ac.jp
authors: Akira
authors: A
authors: Watanabe
authors: Koji
authors: K
authors: Matsuo
authors: Nobumasa
authors: N
authors: Kato
authors: Tadafumi
authors: T
authors: Kato
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001931:Brain Mapping; D003071:Cognition / Q000502:physiology*; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D006985:Hyperventilation / Q000503:physiopathology*; D008297:Male; D009483:Neuropsychological Tests; D010108:Oxyhemoglobins / Q000032:analysis; D011597:Psychomotor Performance; D012039:Regional Blood Flow; D015203:Reproducibility of Results; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D014705:Verbal Behavior
chemical_list: D006454:Hemoglobins; D010108:Oxyhemoglobins