Sexual arousal,the coolidge effect and dominance in the rat (rattus norvegicus)

Male rats were ranked in dominance orders, were allowed to copulate to exhaustion and then were tested for sexual rearousal in five different treatment conditions. Novel females rearoused 60 per cent of the males to ejaculation. Five-minute encounters with dominant or subordinate males stimulated 33 per cent to ejaculation with a familiar female. Fifteen per cent ejaculated with the familiar female after a 5 min rest and 15 per cent after an encounter with an unknown male. The degree of rearousal was not related to fighting or to mounting during male-male encounters, nor did the dominant males show a higher degree of sexual potency.