Assessing Social Dominance in Mouse Models Using the Tube Test

Area of Science:

• Neuroscience
• Behavioral Science
• Animal Models

Background:

• Social dominance is a key behavior affected in neurodevelopmental and neurodegenerative diseases.
• Assessing social dominance is crucial for preclinical studies of these disorders.
• Existing methods may be costly or complex.

Purpose of the Study:

• To introduce and validate the tube test as a simple behavioral assay for evaluating social dominance in mice.
• To highlight its utility in preclinical research, particularly for neurodegenerative and neurodevelopmental disorders.

Main Methods:

• The tube test involves placing two mice in a clear plastic tube; the less dominant mouse retreats.
• The test is adaptable for male and female mice, with adjustable parameters.
• Mice can be tested against multiple opponents for a social dominance index and longitudinally.

Main Results:

• Social dominance in the tube test is stable over repeated testing.
• Results correlate with performance in other social assays.
• The test can assess within-cage hierarchies and is suitable for longitudinal studies.

Conclusions:

• The tube test is a simple, equipment-light, and adaptable assay for measuring social dominance in mice.
• It is a valuable and convenient outcome measure for preclinical therapeutic screening and mechanistic studies in neurological disorders.