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. Author manuscript; available in PMC: 2022 May 24.
Published in final edited form as: Behav Brain Res. 2012 Jan 24;230(1):62–68. doi: 10.1016/j.bbr.2012.01.036

Fig. 1.

Fig. 1

Distribution of total distance moved (TDM) in the novel open field. Animals were handled for 3 days twice per day from postnatal day (PND) 28–30 and assessed for activity in a novel, inescapable open field on PND 31. Animals were classified as exhibiting either low locomotor activity [LLA; 5166 ± 54 cm (mean ± sem), n=26] or high locomotor activity [HLA; 6218 ± 104 cm (mean ± sem), n=26] by removing animals (n=8; dashed circles) in the middle 20% of the activity distribution (5504 to 5724 cm; dashed lines) and classifying the bottom 40% as LLA and the top 40% as HLA. Responses from each animal are shown in the scatter plot.