ABSTRACT
The development of laboratory behavioral approaches to the production of altered physiological states reflects the emergence of two general models for their experimental analysis. The more recent contingent model, in contrast, focuses on environment-behavioral interactions which follow physiological change and provide controlling consequences for instrumental conditioning effects involving visceral-autonomic responses. Central nervous system effects described in electrophysiological studies involving instrumental conditioning procedures were found to be characterized by a similar transience though the findings were suggestive of relationships involving behaviorally-induced autonomic and somatic changes. Electrophysiological changes continue to provide a hazy focus for a handful of studies over the past decade involving the use of operant methodology in the analysis of behaviorally-induced central nervous system alterations. Interaction effects involving operant heart rate conditioning and other related psychophysiological processes have been investigated in a number of animal studies. Indeed, increasing emphasis upon the application of biotele-metric techniques in psycho-physiological investigations provides tangible recognition of this developing frontier.
