Assertion: cerebral palsy's impairment | /r/CapableOf | affect maintenance
Facets:
value: through the lack of light perception
type: CAUSE
value: through their effect on melatonin secretion
type: MANNER
Source sentences:
text: Blindness or severe visual impairment can affect the timing and maintenance of sleep through their effect on melatonin secretion and the lack of light perception.