Table 2 Scoring of startle response upon exposure to the novel object (within the first three seconds).
From: Behavioural responses to unexpected changes in reward quality
0 | moves away from the novel object |
1 | passive (no reaction in the first 3 s, only looking) |
2 | walks around to look at toy from a different angle but does not move closer than 1 m within the first 3 s |
3 | approaches hesitatingly to within 1 m |
4 | approaches toy immediately to within 1 m |
