The authors evaluated the effects of matched and unmatched stimuli on immediate and subsequent engagement in targeted vocal stereotypy (Experiment 1) and untargeted motor stereotypy (Experiment 2). Results of Experiment 1 showed that (a) matched stimulation decreased immediate engagement in vocal stereotypy for 8 of 11 participants and increased…

Stereotypy has been classified as repetitive behavior that does not serve any apparent function. Two procedures that have been found to reduce rates of vocal stereotypy effectively are response interruption and redirection (RIRD) and noncontingent access to matched stimulation (MS). The purpose of the current study was to evaluate the effects of…

We evaluated the effects of 3 types of noncontingent auditory stimulation (music, white noise, recordings of vocal stereotypy) on 2 children with autism who engaged in high rates of vocal stereotypy. For both participants, the music condition was the most effective in decreasing vocal stereotypy to near-zero levels, resulted in the highest parent…

A randomized pretest-posttest control group design was utilized to measure the effects of a platform swing on independent work behaviors of 30 children with Autism Spectrum Disorders (ASD). Participants engaged in two 5-min intervals of independent work. Between the intervals, participants in the treatment group received 5 min of vestibular…

The current study aimed to identify specific stimuli associated with music that served as an establishing operation (EO) for the problem behavior of a 6-year-old child with a diagnosis of autism. Specific EOs for problem behavior evoked by auditory stimulation could be identified. A differential negative reinforcement procedure was implemented for…

Alternative reinforcement strategies on a differential reinforcement of low rates of behavior schedule resulted in significant reduction of self-stimulatory behavior of 9- and 11-year-old autistic boys. Efforts were made to match the sensory consequences derived from the reinforcement to those presumed to be maintaining the self-stimulatory…

The study was designed to make a 6 year old autistic child's learning sessions more productive by reducing three self stimulatory rituals. Treatment involved structured academic sessions involving the S and one other child in basic motor and vocal imitation training which was done according to Discrete Trial Format followed by structured play. In…

Three punishment procedures--contingent applications of water mist, lemon juice, and vinegar--were evaluated as aversive treatment methods for a self-stimulatory behavior exhibited by a severely retarded 11-year-old male. The water mist procedure was as effective as lemon juice or vinegar, presented less physical threat to the client, and was…

Effects of sensory extinction procedures on nontargeted self-stimulatory behaviors of two autistic boys (7 and 12 years old) were assessed. In Experiment 1 application of sensory extinction for target behaviors resulted in decreased topographically similar behavior, but no change in dissimilar behavior. In Experiment 2, suppression also occurred…

Analysis of effects of intertrial intervals on correct responding and self-stimulatory behavior by four autistic children (6-11 years old) revealed that short intertrial intervals produced decreased levels of self-stimulation and increased levels of correct responding. (Author/CL)

Consistent, unemotional use of timeout, without ancillary punishers, is shown to result in typical extinction curves (rather than the steeper gradient of punishment curves) for both autistic and mentally impaired children with widely different abrasive behaviors. Dangers of punishment and the therapeutic value of reduced environmental stimulation…