Electrical stimulation of the hypothalamus in unanesthetized cats induces profound electrocardiographic changes, demonstrating hypothalamic control over cardiac function.
Hypothalamic stimulation alters feline ECG; hypothesis-generating for neural cardiac control in humans.
An analysis of the electrocardiographic records taken from unanesthetized cats undergoing electrical stimulation of various placements in the hypothalamus revealed profund changes in the activity of the heart muscle. These changes are manifested by marked alterations of the individual wave components of the EKG as well as of the rhythmic sequence of the beats.Grateful acknowledgment is made of The invaluable Technical advice of Professors A. W. Bellamy and Marcel Verzeano (Department of Biophysics. UCLA) and laboratory assistance of Mr. Rilchie Almond.
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Weinberg et al. (1959) studied this question.
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