Social Setting: Influence on the Physiological Response to Electric Shock in the Rat

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Science  05 Nov 1971:
Vol. 174, Issue 4009, pp. 613-614
DOI: 10.1126/science.174.4009.613


A significant fall in tail blood pressure occurs in paired rats after shock-induced aggression. Pressure returns to baseline levels within 4 hours after fighting. Conversely, single rats subjected to jump threshold measurements or to shocks identical to those used in the aggression paradigm show significant elevations in tail blood pressure. The size of the pressure increase in rats shocked alone appears dependent on the intensity of the shocks, while the pressure fall in rats shocked in pairs occurs over a broad range of shock intensities.