Abstract
Heart rate in differentially food deprived groups of rats was measured before and after deprivation; and after 5 min of post-deprivation consummatory activity. Deprivation per se had no significant effect on heart rate. However, heart rate recorded during consummatory activity was found to be higher in the 48- and 72-hr deprived groups, than in the 24-hr deprived animals, although eating rate was found to be inversely related to length of deprivation. No significant differences were found between heart rate changes in the 48- and 72-hr deprived groups. The increasing linear function predicted by theory was not demonstrated. Possible reasons for this were discussed in the light of similar findings from a water deprivation experiment involving consummatory activity.
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