The Effect of Olfactory Bulb Renoval or Partial Cortical Lesions on the Sexual Behavior of the Experienced Male Cat
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To determine the role of the sensory motor areas and of olfaction in the mating pattern of the sexually experienced male cat two separate studies were conducted at the American Museum of Natural History. In the first study lesions were made in the genital representation area of the SI and SII areas in 6 cats. In a 7th cat these lesions as well as additional lesions to association areas were made. In comparisons between pre- and post-operative sex behavior a significant decrease (Mann Whitney U test 5%) in time from beginning of test until the first mount (Mount latency) was found in all of the 6 cats for which data has been obtained. Temporary motor abnormalities and unmeasurable qualitative personality changes were observed in all animals postoperatively. The changes were longer lasting the larger the lesion. In the second study the anterior 2/3 of the olfactory bulb was removed in 6 adult male cats. A significant decrease (Mann Whitney U test 5%) was found in 5 out of 6 animals when pre-and post operative sex scores were compared. No other post operative changes were noted.