Table 1. Sensory abilities, neurological reflexes, neuromuscular strength, and motor functions of control and Y1-/- mice.
| Observation | Control | Y1-/- |
|---|---|---|
| Sensory abilities | ||
| Startle response | Normal | Normal |
| Visual cliff and strange stimulus | Normal | Normal |
| Olfaction (hidden cookie) | Normal | Normal |
| Neurological reflexes | ||
| Balance ability and righting | Normal | Normal |
| Eye blink and ear twitch | Normal | Normal |
| Whisker-orienting | Normal | Normal |
| Constriction and dilatation | Normal | Normal |
| Neuromuscular strength | ||
| Wire-hang test, s | 58.3 | 47.4 |
| Motor function tests | ||
| Beam walking (different dimensions), s | 74.0 | 52.5 |
| Pole, s | 83.7 | 79.2 |
| Accelerod (day 1-4), s | 224.0 | 263.4 |
| Footprint | ||
| Stride length, cm | 5.7 | 5.7 |
| Hind/front base width, cm | 3.3 | 3.4 |
| Distance front/hind footprint, cm | 1.3 | 1.3 |
Existence/occurrence of sensory abilities/reflexes is defined as “normal.” For the different neuromuscular strength and motor functions tasks, means are presented. (n = 9-10 mice.)