The effects of neonatal injections of α-MSH on the open-field behavior of juvenile and adult rats

Physiological Psychology - Tập 5 - Trang 295-299 - 2013
Bill E. Beckwith1, R. Karen O’quin2, Marilyn S. Petro1, Abba J. Kastin3,4, Curt A. Sandman1
1Department of Psychology, Ohio State University, Columbus
2Michigan State University, East Lansing
3Endocrinology Section of the Medical Service, Veterans Administration Hospital, New Orleans
4Department of Medicine, Tulane University School of Medicine, New Orleans

Tóm tắt

Male and female infant albino rats, between the ages of 2 and 7 days, were treated with either MSH or the vehicle solution and then tested in an open-field apparatus when they were 45 days old and again when they were 120 days old. Treatment with α-MSH resulted in greater body contact of adult males both at 45 and at 120 days of age. Females treated with α-MSH exhibited greater body contact when tested at 45 days of age, but did not display increased body contact when tested at 120 days of age. These results are indicative of a sex difference in response to neonatal administration of α-MSH.

Tài liệu tham khảo

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