Figure 1.
Layout of the barrier test, showing the position of the human E 1 and the start position of the test subject.
E2 held the subject on the collar or leash until the gaze cue was given. The arrows indicate where E 1 looked in the test and control conditions respectively.
Figure 2.
Box plots showing the latency of wolves to look behind the barrier in the control and test trials according to whether a dog or a human demonstrated the gaze cue.
Each test was repeated at the age of 4, 5 and 6 months of age. Shaded boxes represent the interquartile range, bars within shaded boxes are median values and whiskers indicate the 5th and 95th percentile.
Table 1.
Individual performance of the 9 wolves in the gaze following around barrier task in relation to both analyzed variables.
Figure 3.
Median latency of individual wolves to follow the gaze in the first 5 and last 5 trials of the habituation experiments.
A: Gaze following around the barrier; B: Gaze following into distant space.
Figure 4.
Gaze following into distant space.
A: control trial; B: test trial.
Figure 5.
Box plots showing the latency of wolves to follow the gaze into distant space in seconds in the control and test trials at different ages of the animals.
Shaded boxes represent the interquartile range, bars within shaded boxes are median values and whiskers indicate the 5th and 95th percentile.
Table 2.
Individual performance of the 9 wolves in the gaze following into distant space task in relation to both analyzed variables.