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Hypnopolygraphic alterations in Attention Deficit Disorder (ADD) children
M J Ramos Platon1, A Vela Bueno, J Espinar Sierra
1Dept. of Psychobiology, School of Psychology, Universidad Complutense, Madrid, Spain.
The International Journal of Neuroscience
|August 1, 1990
Summary
Children with Attention Deficit Disorder (ADD) exhibit significantly altered sleep patterns, including reduced sleep onset latency and increased awakenings. These sleep disturbances may indicate a deficient arousal control in ADD, with distinct patterns for subtypes.
Area of Science:
- Pediatric Sleep Medicine
- Neurodevelopmental Disorders
- Child Psychology
Background:
- Attention Deficit Disorder (ADD) is a common neurodevelopmental disorder in children.
- Previous research suggests potential links between ADD and sleep disturbances.
- Understanding these links is crucial for effective diagnosis and treatment.
Purpose of the Study:
- To investigate and compare the sleep patterns of prepubertal children diagnosed with ADD to those of typically developing children.
- To identify specific sleep abnormalities associated with ADD.
- To explore potential differences in sleep correlates between subtypes of ADD (ADD with hyperactivity and ADD without hyperactivity).
Main Methods:
- Polysomnographic recordings were conducted over two consecutive nights for 13 nonmedicated, rigorously diagnosed prepubertal children with ADD.
- Sleep pattern variables were analyzed and compared to a control group of normal children.
- Hypnopolygraphic data were analyzed to differentiate between ADD subtypes.
Main Results:
- Children with ADD showed a significant reduction in sleep onset latency (p < .01).
- ADD children experienced a significantly higher number of nocturnal awakenings (p < .01) and an increased percentage of Delta sleep (p < .01) compared to controls.
- ADD with hyperactivity (ADD/H) subtype exhibited greater sleep fragmentation and lower sleep efficiency than ADD without hyperactivity (ADD/WO).
Conclusions:
- The findings support the hypothesis that ADD is associated with a deficient control of arousal level.
- Distinct hypnopolygraphic correlates suggest that ADD/H and ADD/WO represent different clinical entities.
- These sleep pattern differences may have implications for understanding the pathophysiology and clinical presentation of ADD.