Lerman and Iwata (1996) described a method for distinguishing between sensory extinction and punishment effects of response blocking on self‐injurious behavior maintained independent of social contingencies. Results of their study suggested that blocking decreased the self‐injurious hand mouthing of their participant via punishment. The current replication of these procedures with the self‐injurious eye poking of a woman with developmental disabilities produced patterns of responding indicating that, for this participant, blocking functioned as an extinction procedure.
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Smith et al. (1999) studied this question.
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