Key result
Shock preavoidance in dogs triggers sustained blood pressure increases alongside decreased heart rate.
Key points are not available for this paper at this time.
Hypothesis-generating for anticipatory BP-HR dissociation; requires human validation before any clinical relevance.
Blood pressure and heart rate were monitored continuously in five dogs for 1 hour before performance on a free-operant shock-avoidance task. Cardiovascular changes during the preavoidance hour were characterized by sustained and significant increases in blood pressure, and sustained and significant decreases in heart rate.
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Anderson et al. (1971) studied this question. The one-hour preavoidance period before a shock-avoidance task in dogs elicited sustained and significant increases in blood pressure alongside sustained decreases in heart rate.
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