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Primary aggressive motivation in three inbred strains of mice

Primary aggressive motivation in three inbred strains of mice,10.1037/h0032192,Journal of Comparative and Physiological Psychology,Auke Tellegen,Josep

Primary aggressive motivation in three inbred strains of mice   (Citations: 14)
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30 male mice from 3 inbred strains (BALB/cJ, RF/J, and SJL/J), isolated since 35 days of age, were run at 135 days in a T maze, and acquired a position response when the opportunity to attack a nonaggressive S was used as a reinforcer. Results are interpreted as evidence for primary intraspecific aggressive motivation. Strain differences were significant. Significant warm-up effects were also obtained, including persistent increases in number of correct T-maze choices from 1st to later trials given each day. An identically composed group of 30 food-deprived Ss were run in the maze for food reward. Eating was uniformly a highly effective reinforcer. However, in the 2 best-performing strains the effectiveness of aggression reinforcement following warm-up approached that of reinforcement by eating. (26 ref.)
Journal: Journal of Comparative and Physiological Psychology , vol. 78, no. 2, pp. 297-304, 1972
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