Paul E. Touchette

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Line graphs that average response frequency over long periods obscure the major rate changes that indicate sources of behavioral control. A scatter plot can make patterns of responding identifiable and, in turn, suggest environmental features that occasion undesirable behavior. Use of scatter diagrams is illustrated in three cases.
Three severely retarded boys acquired simple form discriminations errorlessly. Each was first taught to press a red key versus a simultaneously present white key. After this discrimination had been established, black figures were superimposed on the red and white keys. Each correct response affected the next trial by delaying the onset of the red stimulus(More)
While the origins and developmental course of self-injurious behavior (SIB) remain relatively unknown, recent studies suggest a biological imbalance may potentiate or provoke the contagious recurrence of SIB patterns in individuals with severe developmental disabilities (DD). Evidence from several laboratories indicates that functioning, relations, and(More)
Relations between self-injuring behavior (SIB), the hypothalamic-pituitary-adrenal (HPA) stress axis, and response to an opiate antagonist were examined. Subjects were observed in their residential settings, while behavior was recorded. Blood was collected in the morning, evening, and immediately after SIB. Plasma beta-E was uncoupled from ACTH after SIB(More)
Eight severely retarded young men learned color and line-tilt discrimination. After 95% accuracy was achieved for both dimensions, they were combined to form "conflict-compound" stimuli in which prior reinforcement history was reversed for one element of the compound and unchanged for the other. When responding to the compound was 95% accurate, control(More)
A subgroup of self-injuring patients responds positively to the opiate-blocking agent naltrexone in acute, double-blind studies. In this study we examined the effects of naltrexone after acute treatment and the long-term effects of naltrexone on SIB. Rates of SIB were collected from pretreatment baseline; a second baseline a year after the acute trial; and(More)
The effects of a low phenylalanine diet on six retarded phenylketonuric adults were assessed. An ABA individual-subject design was used in experiment I to assess the effects of a low phenylalanine diet on social and motor behavior. Following a baseline during which the subjects ingested a normal phenylalanine diet (phase A), a low phenylalanine diet (phase(More)
BACKGROUND Little is known about longitudinal prescribing practices for psychoactive medications for individuals with intellectual disabilities and developmental disabilities (IDDD) who are living in community settings. METHODS Computerized pharmacy records were accessed for 2344 community-based individuals with IDDD for whom a total of 3421 prescriptions(More)
Delayed prompting can produce errorless discrimination learning. There is inherent in the procedure a disparity in reinforcement density which favors unprompted over prompted responses. We used three schedules of reinforcement to investigate the impact of reinforcement probability on transfer of stimulus control. One schedule of reinforcement was equal(More)
Child Management Training (CMT) involves compliance training with a focus on consistent use of antecedents and consequences. Planned Activities Training (PAT) focuses on teaching parents to plan for and engage in activities with their children. A multiple probe design counterbalancing PAT and CMT showed that PAT and CMT were about equally effective in(More)