title: Effect of deep breathing on extracted oxygen and cerebral hemoglobin levels.
abstract: This study examines the relationship between oxygen expired and functional near infrared spectroscopy (fNIRS) measured hemoglobin levels in the brain. Analysis of these two signals during normal versus deep breathing provides insight into the dynamics of cerebral physiology. Intersubject variation suggests the existence of two distinct groups with respect to oxygen extraction and hemoglobin levels.
authors.affiliation: Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA.
authors.forename: Patrick M
authors.initials: PM
authors.lastname: Kennedy
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Zarbock
authors.forename: Broc A
authors.initials: BA
authors.lastname: Burke
authors.forename: Solomon G
authors.initials: SG
authors.lastname: Diamond
mesh_terms: D000328:Adult; D001921:Brain / Q000378:metabolism*; D006454:Hemoglobins / Q000378:metabolism*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000378:metabolism*; D011659:Pulmonary Gas Exchange / Q000502:physiology*; D015656:Respiratory Mechanics / Q000502:physiology*
chemical_list: D006454:Hemoglobins; D010100:Oxygen