TABLE 1. Sexual Dimorphisms in the Vehicle Control Group (Mean ± SE).
| Assessment | Endpoint | Males | Females |
|---|---|---|---|
| Play behavior | Dorsal contact frequency* | 63.2 ± 3.8 | 52.3 ± 2.5 |
| Pinning frequency | 14.7 ± 2.6 | 10.9 ± 2.0 | |
| Residential running wheel activity (revolutions/12 h) | Light period activity* | 216.7 ± 45.8 | 847.7 ± 107.2 |
| Dark period activity* | 1368.5 ± 246.7 | 5447.0 ± 620.4 | |
| Flavored solution intake (ml consumed/kg body weight) | Saccharin solution* | 0.1386 ± 0.0126 | 0.2426 ± 0.0219 |
| Sodium solution* | 0.0587 ± 0.0062 | 0.0950 ± 0.0110 | |
| Flavored solution preference | Saccharin preference | 88.01 ± 5.48 | 92.89 ± 2.55 |
| Sodium preference | 63.52 ± 6.10 | 73.82 ± 4.56 |
*Indicates a significant difference between vehicle control males and vehicle control females.