Address reprint requests to: Prof. Dr. Rainer Schandry, Institut für Psychologic, Universital Munchen, Lcopoldstrasse 13, D-8000 München 40, Germany
On the relation between cardiodynamics and heartbeat perception
Article first published online: 30 JAN 2007
Volume 30, Issue 5, pages 467–474, September 1993
How to Cite
SCHANDRY, R., BESTLER, M. and MONTOYA, P. (1993), On the relation between cardiodynamics and heartbeat perception. Psychophysiology, 30: 467–474. doi: 10.1111/j.1469-8986.1993.tb02070.x
This research was supported by a grant of the Deutsche Forschugs. gecinschaft (Scha 308 4) to R. Schandry.
We thank Dr. Karin Munzel. Dr. Jasper Brener, and Dr. Ronald J. Heslegrave for helpful comments on an carlier version of the manuscript.
- Issue published online: 30 JAN 2007
- Article first published online: 30 JAN 2007
- (Received February 19, 1991; Accepted July 21, 1992)
- heartbeat perception;
- Cardiac awareness;
- Cardiac function;
- Physical exercise
The mediation of heartbeat perception by cardiodynamic parameters was investigated by experimentally introducing changes in heart performance. Twenty-five subjects (14 women 11 men) underwent bicycle ergometric exercises (0–75 W) at different tilt angles (90°-0°), After each of the 31 tilt/exercise phases, the following measures of cardiac performance were taken using impedance cardiography: stroke volume, Heather Index (as an indicator of contractile force), heart rate, and an estimate of the momentum of the ejected blood mass. Additionally, a heartbeat perception task was performed. The different tilt/exercise combinations induced profound changes in all cardiodynamic. measures, The correlation between heartbeat perception and cardiodynamic parameters was highest for “momentum”(r= 67) and for stroke volume (r= 59). From our data, we infer that intraindividually occurring changes in cardiac perception are mediated partially by characteristics of heart dynamics and that the source of these interoceptive signals lies in the heart or in its close vicinity.