Abstract
Three groups of rats were reared from day 25 to day 65 in either (1) a large free environment cage containing manipulanda, (2) individual restricted environment cages that afforded little sensory or locomotor experience, or (3) in normal cages. Ss were given a brief home cage emergence test designed to evoke “free” exploration. “Forced” exploration was observed by placing each animal in a large cage containing a variety of small objects. FE animals exhibited more exploratory activity in the home cage emergence test but less object exploration in the forced environment.
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1. This research was supported by a grant from the Rutgers Research Council.
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Lore, R.K., Levowitz, A. Differential rearing and free versus forced exploration. Psychon Sci 5, 421–422 (1966). https://doi.org/10.3758/BF03331028
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DOI: https://doi.org/10.3758/BF03331028