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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Int J Dev Neurosci. 2008 Apr 18;26(6):599–610. doi: 10.1016/j.ijdevneu.2008.04.002

Fig. 1.

Fig. 1

Partial enrichment. Rats were raised in one of two environments: box cages with hardwood bedding without stainless steel huts, or box cages with hardwood bedding with stainless steel huts as partial enrichment (pE). Although the photograph shows only one rat in the cage, in the experiment rats were house in same-sex pairs.