Table 1.

Anxiety-related behaviour on the EPM as measured in naïve control and Y1−/− mice and in mice that had been exposed to the FST one week before the EPM test

Genotype and treatment	Time on open arms (s)	Number of open arm entries
Naïve control mice	60.1 ± 10.3 (n = 7)	10.3 ± 1.84 (n = 7)
Naïve Y1−/− mice	76.2 ± 16.0 (n = 8)	10.1 ± 1.47 (n = 8)
Control mice 1 week after FST	57.9 ± 8.72 (n = 7)	10.1 ± 1.56 (n = 7)
Y1−/− mice 1 week after FST	36.5 ± 10.9 (n = 8)	8.25 ± 0.88 (n = 8)

The table shows the time spent on the open arms and the number of entries into the open arms during the 5 min test session. The values represent means ± SEM, n as indicated in parenthesis. There were no significant differences at the P ≤ 0.05 level.