A cross-species socio-emotional behaviour development revealed by a multivariate analysis
Mamiko Koshiba1, Aya Senoo, Koki Mimura
11] Tokyo University of Agriculture and Technology, Tokyo, Japan [2] National Institute of Neuroscience, NCNP, Tokyo, Japan [3] Saitama Medical University, Saitama, Japan.
Scientific Reports
|September 12, 2013
Summary
This study introduces a new method for measuring socio-emotional development in animals using video analysis. This approach may help understand neurobiological underpinnings of autism spectrum disorders (ASDs).
Area of Science:
- Neuroscience
- Animal Behavior
- Developmental Psychology
Background:
- Affective neuroscience and social neurobiology have advanced with neuro-imaging and epigenetics.
- Quantitative measures for socio-emotional development are lacking, unlike sensory-motor development.
- Existing methods do not fully capture the nuances of social interaction in development.
Purpose of the Study:
- To develop a quantitative method for measuring socio-emotional behavior in animal models.
- To identify species- and stage-specific behavior modules.
- To explore the potential of these modules in characterizing autism spectrum disorders (ASDs).
Main Methods:
- Utilized video recordings of animal models with varied social sensory interactions during development.
- Digitized behavioral features from recordings.
- Applied principal component analysis (PCA) for visualization in a multivariate statistical space.
- Clustered behavioral parameters to identify distinct modules.
Main Results:
- Identified species- and stage-specific, as well as cross-species behavior modules.
- Demonstrated that socio-emotional behavior is highly context-dependent.
- Characterized behaviors of children with and without autism spectrum disorders (ASDs) using the developed modules.
- Found that cross-species behavior modules may predict neurobiological basis of ASDs.
Conclusions:
- The developed method provides a quantitative approach to socio-emotional behavior measurement.
- Behavioral modules offer insights into species-specific and conserved aspects of social development.
- This framework has potential for understanding neurodevelopmental disorders like ASDs.
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