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Successful intermale aggression and conditioned place preference in mice
M Martínez1, F Guillén-Salazar, A Salvador
1Facultad de Psicología, Universitat de València, Spain.
Physiology & Behavior
|August 1, 1995
Summary
Male mice showed a preference for a location after fighting only if the experience occurred in a black compartment. Environmental cues significantly impact aggression reinforcement in mice.
Area of Science:
- Behavioral Neuroscience
- Animal Behavior
Background:
- Aggression is a complex behavior with significant social and evolutionary implications.
- Understanding the factors that reinforce aggressive encounters is crucial for behavioral research.
Purpose of the Study:
- To investigate the reinforcing properties of successful intermale aggressive encounters in OF1 male mice.
- To determine the influence of environmental cues on conditioned place preference for aggression.
Main Methods:
- Utilized the conditioned place preference paradigm with a three-compartment apparatus.
- Employed preconditioning, conditioning (8 days), and postconditioning phases.
- Compared an aggression group with a control group, manipulating compartment color.
Main Results:
- No overall significant difference in time spent in the less-preferred compartment between groups.
- A significant conditioned place preference for the aggression-paired compartment emerged only when the experience occurred in the black compartment.
- Environmental cues, specifically compartment color, critically influenced the development of place preference.
Conclusions:
- Successful intermale aggression as a reinforcer is highly context-dependent and fragile.
- Environmental cues can easily disrupt the establishment of conditioned place preference related to aggression.
- Future research should consider the role of specific environmental stimuli in modulating aggressive behavior reinforcement.