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Experimental Assessment of Mouse Sociability Using an Automated Image Processing Approach
Published on: May 15, 2016
Computerized video analysis of social interactions in mice
Fabrice de Chaumont1, Renata Dos-Santos Coura, Pierre Serreau
1Institut Pasteur, Unité d'Analyse d'Images Quantitative, Centre National de la Recherche Scientifique, Unité de Recherche Associée 2582, Paris, France.
Nature Methods
|March 6, 2012
Summary
MiceProfiler software tracks mouse social behavior, revealing neuronal nicotinic receptor roles. Mice lacking these receptors show altered social interactions and fewer back-to-back postures.
Area of Science:
- Neuroscience
- Ethology
- Computational Biology
Background:
- Social interactions in mice model human cognitive and emotional processes.
- Extracting detailed behavioral data from mouse interaction videos is challenging.
Purpose of the Study:
- To introduce MiceProfiler, a novel software for automated analysis of mouse social behavior.
- To investigate the role of neuronal nicotinic receptors (specifically β2 subunit) in social interaction and posture.
- To identify triggers for social contact and analyze temporal behavioral evolution.
Main Methods:
- Developed MiceProfiler software using geometrical primitives for tag-free tracking of two mice.
- Monitored comprehensive behavioral states and their temporal dynamics.
- Studied social interactions and risk-prone postures in wild-type (C57BL/6J) and β2(-/-) knockout mice.
Main Results:
- MiceProfiler successfully models and tracks mouse interactions, capturing behavioral states.
- Mice lacking neuronal nicotinic receptors (β2(-/-)) exhibit different social interaction durations and types over time compared to controls.
- A novel coordinated posture, 'back-to-back posture,' was identified and observed less frequently in β2(-/-) mice.
Conclusions:
- MiceProfiler provides a robust tool for detailed analysis of mouse social behavior.
- Neuronal nicotinic receptors, particularly the β2 subunit, play a significant role in modulating social interactions and specific postures.
- The findings offer new insights into the neurobiological underpinnings of social behavior and risk assessment.
