Abstract
Behavioral-cardiovascular interrelationships involve intracranial electrical self-stimulation (ICSS). It is a peculiar instrumental behavior reinforced by the electrical stimulation of the brain. The rewarding stimulation induces a complex pattern of effects composed of physiological, somatomotor, autonomic, and psychological responses. The neuroanatomical systems subserving ICSS are known to be the central representations of regulatory functions. Therefore, feed-back influences of the induced effects in controlling and modifying ICSS are expected. Such a possible role of the autonomic responses in ICSS is a relatively unexplored aspect of brain stimulation reward. In the course of studying the cardiovascular concomitants of self-stimulation behavior, pressor responses are found to be the most common effects. In an attempt to determine the significance of cardiovascular responses in brain stimulation reward, ICSS has been tested when the level of the cardiovascular functions are shifted pharmacologically.
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