Development and experience-dependent modulation of the defensive behaviors of mice to visual threats

Table 3 Comparison of behavioral features during the test period between rearing conditions

Condition	Speed (m/s)	Time in the field (s)	Time in the shelter (s)	Shelter entry except for escape
NR-box P28 naive	0.056 ± 0.004	297.1 ± 59.8	571.1 ± 65.7	6.9 ± 1.3
DR-box P28 naive	0.053 ± 0.002	432.2 ± 35.1	394.1 ± 37.8	6.6 ± 0.7
NR-box P35 naive	0.047 ± 0.002	513.8 ± 47.4	334.5 ± 40.3	7.3 ± 0.9
DR-box P35 naive	0.052 ± 0.001	455.7 ± 40.6	405.8 ± 39.4	10.2 ± 1.1
NR-box P35 experienced	0.054 ± 0.003	361.6 ± 37.9	459.6 ± 44.8	8.5 ± 0.9
DR-box P35 experienced	0.046 ± 0.002	458.1 ± 38.2	404.5 ± 36.3	9.1 ± 0.8

Behaviors during the test period were compared between rearing conditions for each age. The speed before the onset of expanding disk stimulation, duration of the time spent in the field or in the shelter, or number of shelter entries except for escape did not differ significantly. NR normally reared, DR dark reared

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