Behavioral characteristics of the offspring of adolescent rats. T. Zemunik, M. Peruzovic, V. Capkun and K. Milkovic. Brazilian Journal of Medical and Biological Research, 36 (4): 465, 2003.
Figure 4. Median spontaneous activity (counts/15 min) in the activity cage of 78-day-old offspring of adolescent (filled columns) and adult control (open columns) rats (N = 24). The Mann-Whitney test was used to compare offspring from adolescent and adult control animals. P<0.001, intervals: 16-20, 21-25, 25-30.