Abstract
A 25-year-old, deaf-blind, mentally retarded male was treated for chronic self-choking using water mist treatment and positive reinforcement. During pre-treatment baseline, self-chokes occured at a rate of 2.09 per minute. During treatment sessions each self-choke was followed by water misting of the subject's face paired with a forceful “No!”. Periods of 20 sec absent of self-chokes were positively reinforced with liquids and/or social contacts. Treatment procedures were generalized from the initial therapists, location, and absence of other clients and staff to other locations, and the presence of other clients and staff. Water mist treatment was associated with at least a 10-fold and as much as a 100-fold reduction of self-choking (i.e. to 0.02–0.20 self-chokes per min) across treatment and generalization phases. Eight-month follow-up observations showed that self-choke rates were at zero.
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