[Changes in the monosynaptic reflex during wakefulness and sleep of children with cerebral paralysis]

Rivista Di Neurologia
|March 1, 1978
PubMed

Insights

Children with spastic cerebral palsy show altered H reflex patterns during sleep compared to normal children. This suggests impaired supraspinal inhibitory control in spasticity.

Area of Science:

  • Neuroscience
  • Pediatrics
  • Sleep Medicine

Context:

  • Cerebral palsy (CP) is a group of disorders affecting movement and posture.
  • Sleep disturbances are common in children with CP.
  • The H reflex, a measure of spinal reflex excitability, can be influenced by sleep state and supraspinal input.

Purpose:

  • To investigate changes in the H reflex amplitude during different sleep stages in children with cerebral palsy.
  • To compare these changes with those observed in typically developing children.

Summary:

  • H reflex amplitude progressively decreases from wakefulness to REM sleep in normal children.
  • In spastic CP, the H reflex shows only a slight decrease in NREM sleep and no significant change in REM sleep, with amplitudes consistently higher than controls.
  • Children with dystonic or hypotonic CP exhibit H reflex patterns similar to controls.

Impact:

  • Findings suggest an altered balance of supraspinal regulatory systems in spastic CP, likely due to reduced functionality of inhibitory structures.
  • This research provides insights into the neurophysiological underpinnings of spasticity during sleep.
  • Highlights potential differences in sleep-related spinal reflex modulation across CP subtypes.

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