title: The elusive initial dip.
authors.affiliation: Department of Radiology, University of California at San Diego, San Diego, California 92103, USA.
authors.forename: R B
authors.initials: RB
authors.lastname: Buxton
mesh_terms: D000818:Animals; D001143:Arousal / Q000502:physiology*; D001921:Brain / Q000098:blood supply*; D001931:Brain Mapping; D004734:Energy Metabolism / Q000502:physiology*; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D010101:Oxygen Consumption / Q000502:physiology*; D010108:Oxyhemoglobins / Q000378:metabolism; D051381:Rats; D012039:Regional Blood Flow / Q000502:physiology; D014055:Tomography, Emission-Computed
chemical_list: D006454:Hemoglobins; D010108:Oxyhemoglobins; C100003:deoxyhemoglobin