Abstract
Pairs of rats were placed in a chamber and given electric shocks of varying intensities in a random order. Two sessions, 48 h apart, were given to each pair. Shock-elicited aggression increased with shock intensity. Pretreatment, before a session, with the opiate antagonist, naloxone, resulted in greater aggression than was evidenced by saline-pretreated controls.
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This research was supported by NSF Grant NBS 76-19912.
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Fanselow, M.S., Sigmundi, R.A. & Bolles, R.C. Naloxone pretreatment enhances shock-elicited aggression. Psychobiology 8, 369–371 (1980). https://doi.org/10.3758/BF03337472
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DOI: https://doi.org/10.3758/BF03337472