心拍率の随意制御におよぼす3拍の遅延フィードバックの効果

抄録

On a CRT display, analogue heart rate feedback of each beat was presented together with a target calculated from a subject's heart rate level. Twenty subjects received twenty-four 100-beat trials. All subjects were required to continue adjusting their heart rate around the target as close as possible under both immediate and 3-beat delayed feedback conditions. Half of the subjects received immediate feedback trials first, followed by delayed feedback trials, while the other half received trials in the reverse order. Results indicated that feedback delay disrupted the accuracy of heart rate control when subjects received delayed feedback after immediate feedback trials, and that feedback delay caused low-frequency oscillation in heart rate variability. Findings in this experiment suggest that voluntary control of heart rate can be understood from the viewpoint of motor skills learing.