This triple-arm, double-blind, randomized clinical trial investigated the effect of multisession prefrontal transcranial direct current stimulation (tDCS) on social functioning in individuals with autism spectrum disorder (ASD). A total of 105 individuals (age 14-21 years) diagnosed with ASD were randomized into the active-tDCS, sham-tDCS, and…

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…

Persons with severe to profound multiple disabilities, such as intellectual, visual, and motor disabilities, may be characterized by low levels of adaptive engagement with the environment. They may also display forms of inappropriate, stereotypical behavior (like hand mouthing, that is, putting their fingers into or over their mouths) or…

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…

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…

The present study investigated the effects of differential negative reinforcement of other behavior (DNRO) on problem behavior evoked by music in a 7-year-old child with pervasive developmental disorder. Following an auditory stimulus assessment, DNRO was used to reduce problem behavior to near-zero levels. Results are discussed in terms of…

The absence of genital stimulation in a 16-year-old severely retarded male (IQ 21) was reinforced with a combination of edibles and a stereotypic behavior. Among results were that edibles alone maintained the reductions in genital stimulation, and that withholding edibles had little effect in reducing the stereotypic behavior. (Author/JW)

The study assessed the effects of a negative practice contingency plus DRO on the self-stimulatory hand-clapping of three developmentally disabled students, aged 6-9. The procedure was effective in suppressing the behavior, and follow-up observations showed that the occurrence of hand-clapping continued to be low. (Author/JDD)

Dealing with the behavioral and academic problems of children with co-occurring learning disabilities and attention-deficit/hyperactivity disorder (AD/HD) can be challenge for educators. One characteristic often associated with AD/HD is an inability to remain engaged in tasks for long periods of time. This lack of attentional focus often results…

A naturalistic assessment of self-injurious behavior in an 11-year-old boy with multiple disabilities, including severe mental retardation, found that the boy's self-injury was occasioned by low attention and low stimulation and maintained by tangible and social reinforcement. Naturalistic assessment effectively guided the selection of behavioral…