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On the relation between object manipulation and stereotypic self-injurious behavior.

J S Lindberg1, B A Iwata, S W Kahng

  • 1Psychology Department, University of Florida, Gainesville 32611, USA.

Journal of Applied Behavior Analysis
|April 14, 1999
PubMed
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Increasing object manipulation did not decrease self-injurious behavior (SIB) in individuals with developmental disabilities. Interventions directly targeting SIB are necessary for reduction, as object manipulation alone does not effectively compete with stereotypic behaviors.

Area of Science:

  • Behavioral Psychology
  • Developmental Disabilities Research
  • Applied Behavior Analysis

Background:

  • Previous research indicates an inverse relationship between stereotypic behavior and object manipulation.
  • Self-injurious behavior (SIB) is a significant concern in individuals with developmental disabilities, often maintained by automatic reinforcement.
  • Understanding factors that influence object manipulation and SIB is crucial for developing effective interventions.

Purpose of the Study:

  • To evaluate the effectiveness of prompting and reinforcement in increasing object manipulation in individuals with developmental disabilities.
  • To determine if increased object manipulation leads to a decrease in stereotypic self-injurious behavior (SIB).
  • To explore different intervention strategies, including reinforcement, blocking SIB, and using protective equipment.

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Main Methods:

  • Two participants with developmental disabilities who engaged in SIB were studied.
  • Object manipulation was assessed under prompted and unprompted conditions.
  • Interventions included reinforcing object manipulation, blocking SIB, and using protective equipment while reinforcing manipulation.

Main Results:

  • Prompting increased object manipulation, but it was not maintained without prompts.
  • SIB rates remained at baseline levels during object manipulation increases.
  • Reinforcing object manipulation alone did not increase manipulation; blocking SIB reduced attempts for one participant but not manipulation.
  • Protective equipment increased object manipulation for one participant, but this effect was not maintained after removal.

Conclusions:

  • Object manipulation, even with reinforcement, may not sufficiently compete with the stimulation from stereotypic SIB.
  • Direct interventions aimed at reducing SIB are likely necessary.
  • Further research is needed to understand the complex interplay between object manipulation and SIB in this population.