Olfactory bulbectomy decreases social behavior in male prairie voles (M. ochrogaster).
Prairie voles (Microtus ochrogaster) are social rodents that show characteristics of monogamy including high levels of social behavior and male parental care. Behavioral studies of prairie voles have implicated chemosignals in the control of various components of social behavior and reproduction. In the present study, the role of the olfactory system in male behavior was examined following surgical removal of the olfactory bulbs. Decreases in measures of sexual, paternal, and other social behaviors were observed following bilateral olfactory bulbectomy, but not unilateral or sham bulbectomy. Some bilaterally bulbectomized males also showed a stereotypy, but this probably did not account for the changes in social behaviors.
Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore 21228.
B
B
Kirkpatrick
J R
JR
Williams
B M
BM
Slotnick
C S
CS
Carter
D000818:Animals; D003411:Arvicolinae / Q000502:physiology*; D001931:Brain Mapping; D004292:Dominance, Cerebral / Q000502:physiology; D005260:Female; D008032:Limbic System / Q000502:physiology; D008297:Male; D009830:Olfactory Bulb / Q000502:physiology*; D009833:Olfactory Pathways / Q000502:physiology; D010332:Paternal Behavior; D012726:Sexual Behavior, Animal / Q000502:physiology*; D012919:Social Behavior; D012931:Social Environment