Related Experiment Videos
Mouse aggression and the intruder-familiarity effect: evidence for multiple-factor determination c57bl
Journal of Comparative and Physiological Psychology
|April 1, 1977
Summary
Male house mice show reduced aggression towards familiar cagemates due to habituation to their odors. This effect is influenced by aggression-inhibiting odors from cohabitation and non-olfactory social cues during encounters.
Area of Science:
- Ethology
- Animal Behavior
- Neuroscience
Background:
- Male house mice exhibit reduced aggression towards familiar cagemates compared to novel intruders.
- This phenomenon is commonly attributed to habituation to odors associated with cagemates.
Purpose of the Study:
- To investigate the simplistic interpretation of habituation to odors as the sole cause of reduced aggression.
- To explore the additional factors influencing aggression inhibition in male house mice.
Main Methods:
- Experiments involved preexposure of male mice to cagemates and intruders under varying conditions.
- Manipulations included eliminating physical contact, altering social interaction, and using models with intruder odors.
- Aggression and investigation behaviors were quantified in response to familiar and novel stimuli.
Main Results:
- Attack inhibition to cagemates did not generalize to non-cohabiting intruders.
- Preventing physical contact during preexposure abolished the usual decline in aggression.
- Intruder odors elicited investigation on models but aggression towards socially active mice; preexposure without social interaction paradoxically increased aggression.
Conclusions:
- Aggression inhibition in male house mice is more complex than simple olfactory habituation.
- Aggression-inhibiting odors deposited by cohabitation and non-olfactory social stimuli play crucial roles.
- The context of social interaction significantly modulates responses to olfactory cues.