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Automated contingent reinforcement of correct posture
M R Burch1, J C Clegg, J S Bailey
1ARA Devcon's Tallahassee Developmental Center, FL.
Research in Developmental Disabilities
|January 1, 1987
Summary
A mercury switch device improved upright sitting posture for a blind, nonambulatory adult. The device used music and game shows as reinforcers, increasing correct posture from 0% to 52%.
Area of Science:
- Assistive technology
- Behavioral intervention
- Rehabilitation engineering
Background:
- Assessing and improving sitting posture is crucial for individuals with physical impairments.
- Self-monitoring devices can potentially enhance posture control and independence.
- Reinforcement strategies are effective in motivating behavioral changes.
Observation:
- A mercury switch integrated into a baseball cap was used as a self-monitoring device.
- The device was linked to auditory reinforcers: a keyboard for music practice and a radio for leisure.
- A multiple baseline design across two reinforcing activities was employed.
Findings:
- The participant, a 31-year-old blind, nonambulatory male with intellectual and adaptive functioning impairments, showed significant improvement.
- Upright sitting posture increased from nearly 0% during baseline to an average of 52% during the treatment condition.
- The mercury switch effectively triggered auditory reinforcers contingent upon maintaining upright posture.
Implications:
- Mercury switches offer a viable, low-cost technological solution for posture self-monitoring.
- This approach demonstrates the potential for technology to support adaptive functioning in individuals with severe disabilities.
- Personalized reinforcement strategies combined with assistive technology can lead to measurable improvements in daily living skills.