Regional cerebral blood flow during voluntary movements of the hand. A rheoencephalography study.
Cerebral impedance changes (F changes) indicating cerebral blood flow variations in the central and precentral areas were measured with a rheographic technique in normal subjects preparing for and carrying out a motor task. The time course of the F changes was studied and several significant correlations were established between the amount of F changes, their distribution and the motor performance. Our findings confirm that frontal and premotor regions play an important part in decision making.
D000328:Adult; D002536:Cerebral Arteries / Q000502:physiology*; D003118:Color Perception; D003657:Decision Making / Q000502:physiology; D004192:Discrimination, Psychological / Q000502:physiology; D005260:Female; D006185:Habituation, Psychophysiologic / Q000502:physiology; D006225:Hand / Q000502:physiology*; D006801:Humans; D007092:Imagination; D008297:Male; D009043:Motor Activity / Q000502:physiology; D009068:Movement; D010992:Plethysmography, Impedance / Q000379:methods*; D011930:Reaction Time; D012039:Regional Blood Flow