We assessed the immediate and subsequent effects of environmental enrichment (EE) as a stand-alone intervention and when EE was combined with response cost (RC) for 5 participants using a 2-component multiple-schedule design. Environmental enrichment failed to decrease any participant's immediate engagement in stereotypy; however, the addition of RC decreased the immediate engagement in stereotypy for all participants. After the withdrawal of EE plus RC, stereotypy did not immediately increase for 3 of 5 participants.
Keywords: automatic reinforcement; environmental enrichment; response cost; stereotypy.
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