Score direct social investigation, resident-intruder aggression rate, group SEM, and CSV export for rodent social behavior studies.
Enter event durations from resident-intruder or freely interacting dyads. Social investigation is the sum of nose-to-nose, anogenital sniffing, and allogrooming time divided by session duration.
| Animal | Group | Session (s) | Nose-nose (s) | Anogenital (s) | Allogroom (s) | Aggression bouts | Social % | Aggression/min | Remove |
|---|---|---|---|---|---|---|---|---|---|
| 24.0% | 0.10 | ||||||||
| 22.8% | 0.00 | ||||||||
| 11.7% | 0.50 | ||||||||
| 10.5% | 0.60 |
| Animal | Group | Social investigation % | Aggression/min |
|---|---|---|---|
| WT-1 | WT | 24.00 | 0.10 |
| WT-2 | WT | 22.83 | 0.00 |
| KO-1 | KO | 11.67 | 0.50 |
| KO-2 | KO | 10.50 | 0.60 |
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Direct social interaction assays measure how much time a test animal spends investigating another animal. Resident-intruder designs emphasize territorial and aggressive behavior. Dyadic designs emphasize reciprocal interaction in a neutral or familiar arena.
The analyzer sums nose-to-nose, anogenital sniffing, and allogrooming durations for each animal or dyad. That total is divided by session duration to report social-investigation percent. In resident-intruder mode, aggression bouts are divided by session minutes.
Keep lighting, arena, partner novelty, resident isolation period, and scoring definitions constant across groups. Blind manual scorers to genotype or treatment when feasible. Pair with video scoring when behaviors are brief or overlapping.
Arena setup for resident-intruder and dyadic social interaction testing
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