Compatibility of Male and Female Sexual Behaviour in Macaca arctoides

and Summary This report describes factors influencing the attainment of orgasm in the stump-tailed macaque in the laboratory. In the male, penile stimulation during copulation was not a sufficient condition for orgasm to occur; successful copulation had to be preceded by a high level of excitement triggered by various psychosocial factors. In the female, stereotypic signs of high sexual excitement were invariably displayed during copulation at the time of male orgasm and also during homosexual interactions which did not provide genital stimulation. The observations suggest that female orgasm results from high responsiveness to the overall behaviour of the excited partner. Zusammenfassung Dieser Bericht beschreibt Faktoren, die bei im Labor lebenden Stummelschwanz-Makaken (Macaca arctoides) zum Orgasmus fuhren. Beim Mannchen war die Penisreizung wahrend der Kopulation keine ausreichende Bedingung fur das Auftreten eines Orgasmus; einer erfolgreichen Kopulation mus ein hoher Grad an Erregung, ausgelost durch verschiedene psychosoziale Faktoren, vorausgehen. Das Weibchen zeigte gleichbleibend stereotype Zeichen hoher sexueller Erregung wahrend der Kopulation zum Zeitpunkt des mannlichen Orgasmus und ebenso wahrend homosexueller Interaktionen ohne genitale Reizung. Die Beobachtungen scheinen darauf hinzuweisen, das das Weibchen wahrend der Kopulation infolge seiner hohen Empfanglichkeit fur das Gesamtverhalten des erregten Partners mit der Ejakulation des Mannchens einen Orgasmus erfahrt.

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