ABSTRACT
In this chapter, the author describes computer based procedure. Studies of heart rate feedback with human subjects defy such concise description. All experimental groups were compared with a control group that worked with a similar moving line display, which was generated by the computer rather than the subject's heart. Thus, information about heart rate may be fed back to subjects at any frequency, as accumulations of several successive R-R intervals. Continuous analogue feedback produced the greatest heart rate change. Changes in respiration were examined to determine if this system paralleled the speeding and slowing heart rate differences. Each heart cycle initiates a moving line, starting at the left, which extends itself across the screen at a constant rate. The target line is of course adjusted to the new learning unit, and the spatial characteristics of the display remain constant.
