Reaction Time as a Function of the Cardiac Cycle in Young Adults

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Science  12 Apr 1963:
Vol. 140, Issue 3563, pp. 195-196
DOI: 10.1126/science.140.3563.195-a


Simple reaction times to auditory stimuli varied with the phase of the cardiac cycle in which the stimuli were presented, tending to be fastest to stimuli presented during the P-phase of the electrocardiogram. One hundred reaction times obtained from each of 56 men and women between the ages of 20 and 30 years were analyzed.