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Updated: Sep 21, 2025
Experimental Assessment of Mouse Sociability Using an Automated Image Processing Approach
Published on: May 15, 2016
Social deficits in BTBR T+ Itpr3tf/J mice vary with ecological validity of the test
Maciej Winiarski1, Ludwika Kondrakiewicz1, Kacper Kondrakiewicz1,2
1Laboratory of Emotions Neurobiology, BRAINCITY - Center of Excellence for Neural Plasticity and Brain Disorders, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
Abstract:
Translational value of mouse models of neuropsychiatric disorders depends heavily on the accuracy with which they replicate symptoms observed in the human population. In mouse models of autism spectrum disorder (ASD) these include, among others, social affiliation, and communication deficits as well as impairments in understanding and perception of others. Most studies addressing these issues in the BTBR T+ Itpr3tf/J mouse, an idiopathic model of ASD, were based on short dyadic interactions of often non-familiar partners placed in a novel environment. In such stressful and variable conditions, the reproducibility of the phenotype was low. Here, we compared physical conditions and the degree of habituation of mice at the time of testing in the three chambered social affiliation task, as well as parameters used to measure social deficits and found that both the level of stress and human bias profoundly affect the results of the test. To minimize these effects, we tested social preference and network dynamics in mice group-housed in the Eco-HAB system. This automated recording allowed for long-lasting monitoring of differences in social repertoire (including interest in social stimuli) in BTBR T+ Itpr3tf/J and normosocial c57BL/6J mice. With these observations we further validate the BTBR T+ Itpr3tf/J mouse as a model for ASD, but at the same time emphasize the need for more ecological testing of social behavior within all constructs of the Systems for Social Processes domain (as defined by the Research Domain Criteria framework).
Insights
Mouse models for autism spectrum disorder (ASD) show low reproducibility due to stress. Using the Eco-HAB system for group-housed mice improves social behavior assessment, validating BTBR mice as an ASD model.
Area of Science:
- Neuroscience
- Animal Behavior
- Genetics
Background:
- Translational validity of neuropsychiatric disorder mouse models hinges on accurate symptom replication.
- Autism spectrum disorder (ASD) mouse models often exhibit deficits in social affiliation, communication, and social perception.
- Previous studies on BTBR T+ Itpr3tf/J mice, an idiopathic ASD model, used dyadic interactions in novel, stressful environments, leading to low phenotype reproducibility.
Purpose of the Study:
- To investigate how physical conditions and habituation affect social behavior testing in BTBR T+ Itpr3tf/J mice.
- To minimize stress and human bias in assessing social deficits in ASD mouse models.
- To validate the BTBR T+ Itpr3tf/J mouse as an ASD model using more ecologically relevant testing methods.
Main Methods:
- Comparison of testing conditions and habituation levels in the three-chambered social affiliation task.
- Utilizing the Eco-HAB system for automated, long-lasting monitoring of group-housed mice.
- Assessing social preference and network dynamics in BTBR T+ Itpr3tf/J and C57BL/6J mice.
Main Results:
- Stress levels and human bias significantly impact the results of social behavior tests in mice.
- The Eco-HAB system enabled long-term monitoring and revealed differences in social repertoire between BTBR and C57BL/6J mice.
- BTBR T+ Itpr3tf/J mice exhibit distinct social behaviors compared to normosocial controls.
Conclusions:
- The BTBR T+ Itpr3tf/J mouse is validated as a model for autism spectrum disorder.
- Ecological testing in systems like Eco-HAB is crucial for accurate assessment of social behavior in ASD models.
- Further research should incorporate the Research Domain Criteria framework for a comprehensive understanding of social processes in mouse models.
