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Behavioral changes in nonambulatory, profoundly mentally retarded individuals
Monograph of the American Association of Mental Deficiency
|January 1, 1978
Summary
Intensive stimulation improved behavior and development in nonambulatory, profoundly mentally retarded (NPMR) individuals. This study highlights potential for positive environmental impacts on neurological maturation and social development in this population.
Area of Science:
- Developmental Psychology
- Neuroscience
- Special Education
Background:
- Nonambulatory, profoundly mentally retarded (NPMR) individuals are an understudied population.
- Existing research lacks comprehensive descriptions of their physical, etiological, and behavioral traits.
Purpose of the Study:
- To characterize NPMR individuals' physical, etiological, and behavioral features.
- To assess the impact of intensive physical and social stimulation on their behavior.
Main Methods:
- Studied 16 NPMR subjects over 2.5 years, collecting baseline data on development, sleep, activity, and behavior.
- Implemented a 3-phase stimulation program: upright positioning, toy presentation, and paired physical contact.
- Evaluated changes in behavior, sleep patterns, developmental assessments (Bayley Scales), and responses to novel stimuli.
Main Results:
- NPMR subjects exhibited low developmental status, irregular sleep-wake cycles, and minimal responses to stimuli.
- Intensive stimulation across three phases led to observable changes in behavioral profiles during treatment.
- Beneficial effects of stimulation were noted in ongoing behavior, sleep patterns, developmental scores, and responses to novel situations.
Conclusions:
- Environmentally induced changes can positively impact neurological maturation and social development in NPMR individuals.
- This research provides a framework for future studies on NPMR populations.
- Findings challenge previous assumptions about the limited potential for improvement in severely impaired individuals.