A positive relation was found between the amount of eye movement during rapid-eye-movement or paradoxical sleep and estimates of intellectual level in a group of retarded adults. This result supports the hypothesis that during sleep the brain carries out processes important for cognitive function.
No takes yet. Share an insight, caveat, or question.
Irwin Feinberg (1968) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: