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Direct linkOrtega, Javier Virues; Iwata, Brian A.; Nogales-Gonzalez, Celia; Frades, Belen – Journal of Applied Behavior Analysis, 2012
We conducted 2 studies on reinforcer preference in patients with dementia. Results of preference assessments yielded differential selections by 14 participants. Unlike prior studies with individuals with intellectual disabilities, all participants showed a noticeable preference for leisure items over edible items. Results of a subsequent analysis…
Descriptors: Dementia, Mental Retardation, Patients, Reinforcement
Download full textMcCord, Brandon E.; Grosser, Jason W.; Iwata, Brian A.; Powers, Lauren A. – Journal of Applied Behavior Analysis, 2005
We manipulated two parameters of response blocking to reduce pica: (a) the criteria for initiating the procedure (either earlier or later in the response chain) and (b) the distance from which the procedure was initiated. Results suggested that response blocking may be effective only when implemented early in the chain and with near-perfect…
Descriptors: Behavioral Science Research, Prevention, Behavior Disorders, Reinforcement
Peer reviewedLerman, Dorothea C.; Iwata, Brian A. – Journal of Applied Behavior Analysis, 1996
This paper presents a method for distinguishing between extinction and punishment effects. In extinction and punishment, different schedules of reinforcement or punishment are in effect when a given proportion of responses is blocked. Response patterns in treatment of hand mouthing in an adult with profound mental retardation suggest that a…
Descriptors: Adults, Behavior Modification, Behavioral Science Research, Case Studies
Peer reviewedGoh, Han-Leong; Iwata, Brian A. – Journal of Applied Behavior Analysis, 1994
The self-injurious escape behavior of an adult with developmental disabilities was treated with extinction. Results of a reversal design showed substantial bursts of responding when extinction was introduced and reintroduced: self-injury remained at a variable and elevated rate for some time before stable, low rates were observed. (Author/DB)
Descriptors: Adults, Behavior Modification, Behavioral Science Research, Case Studies
Peer reviewedFisher, Wayne W.; Iwata, Brian A. – Journal of Applied Behavior Analysis, 1996
Discussion of the functional relationship between self-injurious behavior (SIB) and self-restraint in people with severe disabilities considers SIB and self-restraint as members of the same functional response class, SIB and self-restraint as functionally independent responses, access to self-restraint as positive reinforcement of SIB, termination…
Descriptors: Behavior Patterns, Behavior Problems, Behavioral Science Research, Case Studies
Peer reviewedShirley, Melissa J.; Iwata, Brian A.; Kahng, Sung Woo – Journal of Applied Behavior Analysis, 1999
Results of a functional analysis indicted that the hand mouthing of a woman with profound mental retardation was maintained by multiple sources of control (sensory stimulation and access to a leisure item). Hand mouthing, though maintained by automatic reinforcement, was also susceptible to social contingencies when exposed to them during…
Descriptors: Adults, Behavior Modification, Behavior Problems, Behavioral Science Research
