An Evaluation of the Effects of Trauma-Related Stimuli on Behavior during Preference Assessments and Functional Analysis with People with Intellectual Disabilities

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People with intellectual disabilities (ID) face a high risk of experiencing adverse events including abuse, neglect, and serious medical issues. Access to effective interventions for people with moderate to severe ID is limited because of communication deficits that are characteristic of this population. Some of the negative effects of exposure to trauma for people with ID can include increases in problem behaviors. Behavior analysts have developed robust assessments and treatments to address these problem behaviors for people with ID; however, when these behaviors arise after a traumatic event, specialized assessments may be necessary to ensure effective treatment and decreased risk … continued below

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Houck, Elizabeth Joy May 2023.

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People with intellectual disabilities (ID) face a high risk of experiencing adverse events including abuse, neglect, and serious medical issues. Access to effective interventions for people with moderate to severe ID is limited because of communication deficits that are characteristic of this population. Some of the negative effects of exposure to trauma for people with ID can include increases in problem behaviors. Behavior analysts have developed robust assessments and treatments to address these problem behaviors for people with ID; however, when these behaviors arise after a traumatic event, specialized assessments may be necessary to ensure effective treatment and decreased risk of re-traumatization. Specifically, if trauma-related stimuli (TRS) differentially affect preferences and functions of behavior, assessments of the effects of these stimuli may be critical to mitigate those effects. In my first experiment I found that TRS differentially affected behavior (including heartrate) during preferences assessments. In my second experiment I found that TRS differentially affected heartrate and the function of problem behavior for two of three participants. I discuss implications of these findings, including 1) that measuring some of the physiological effects of TRS using commercially available heart rate monitors could improve behavior analytic assessments for people with potential trauma histories; and 2) the presence of TRS can differentially affect the function of problem behavior in such a way that treatment plans developed and evaluated in either the presence or absence of TRS may be ineffective in the alternate setting.

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  • May 2023

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  • July 8, 2023, 11:35 p.m.

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  • Dec. 8, 2023, 5:06 p.m.

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Houck, Elizabeth Joy. An Evaluation of the Effects of Trauma-Related Stimuli on Behavior during Preference Assessments and Functional Analysis with People with Intellectual Disabilities, dissertation, May 2023; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc2137643/: accessed May 26, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .

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