Published online by Cambridge University Press: 16 June 2009
The latency of the self-injurious behaviour of a severely handicapped, Down's-syndrome boy, aged 9 years, was increased by a factor greater than three. Vibration was presented as the reinforcer in a discrete-trial, DRI-schedule procedure in which the incompatible response was physically prompted. A single-subject, ABAB design was used. It is suggested that the DRI schedule used in this way is a valuable initial procedure for decreasing self-injurious behaviour to a level where other procedures may then be applied.
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