Behavioral categories
| Vocalization—any utterance including chirps, twitters, peeps, screeches, etc. |
| Catalepsy—any static, atypical or awkward posture |
| Locomotion—any two or more directed steps in the horizontal and/or vertical plane |
| Exploratory behavior—combined score of the following two categories: |
| Environmental manipulation—any tactile or oral manipulation of features of the observational arena |
| Foraging—sweeping and/or picking through wood chip substrate |
| Self-directed behavior—combined score of the following two categories: |
| Self-grooming—picking, scraping, spreading, or licking of fur |
| Scratching—movement of digits through fur in a rhythmic, repeated motion |
| Visual scanning—directed eye and/or head movements, usually from a sitting position |
| Sleep posture—species-typical position: eyes closed, head tucked to chest, tail wrapped around upper body |
| Other—any notable behavior not defined above (e.g., yawn, sneeze) |