Effects of a weighted vest on attention to task and self-stimulatory behaviors in preschoolers with pervasive developmental disorders

Am J Occup Ther. Nov-Dec 2001;55(6):629-40. doi: 10.5014/ajot.55.6.629.

Abstract

Objective: This study examined the effectiveness of using a weighted vest for increasing attention to a fine motor task and decreasing self-stimulatory behaviors in preschool children with pervasive developmental disorders (PDD).

Method: Using an ABA single-subject design, the duration of attention to task and self-stimulatory behaviors and the number of distractions were measured in five preschool children with PDD over a period of 6 weeks.

Results: During the intervention phase, all participants displayed a decrease in the number of distractions and an increase in the duration of focused attention while wearing the weighted vest. All but 1 participant demonstrated a decrease in the duration of self-stimulatory behaviors while wearing a weighted vest; however, the type of self-stimulatory behaviors changed and became less self-abusive for this child while she wore the vest. During the intervention withdrawal phase, 3 participants experienced an increase in the duration of self-stimulatory behaviors, and all participants experienced an increase in the number of distractions and a decrease in the duration of focused attention. The increase or decrease, however, never returned to baseline levels for these behaviors.

Conclusion: The findings suggest that for these 5 children with PDD, the use of a weighted vest resulted in an increase in attention to task and decrease in self-stimulatory behaviors. The most consistent improvement observed was the decreased number of distractions. Additional research is necessary to build consensus about the effectiveness of wearing a weighted vest to increase attention to task and decrease self-stimulatory behaviors for children with PDD.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Attention
  • Child Development Disorders, Pervasive / complications
  • Child Development Disorders, Pervasive / diagnosis
  • Child Development Disorders, Pervasive / rehabilitation*
  • Child, Preschool
  • Female
  • Follow-Up Studies
  • Humans
  • Intellectual Disability / complications
  • Intellectual Disability / diagnosis
  • Intellectual Disability / rehabilitation*
  • Male
  • Occupational Therapy / methods*
  • Pressure
  • Sampling Studies
  • Self Stimulation*
  • Severity of Illness Index
  • Social Behavior
  • Task Performance and Analysis
  • Treatment Outcome
  • Weights and Measures*