Abstract
Sleep disturbances after cranial cerebral trauma are well-known. A few studies have attempted to relate recovery of rapid eye movement (REM) sleep with cognitive recovery in general and recovery from aphasia in particular. This paper review the literature on sleep and recovery of neuropsychological function with emphasis on the recovery from aphasic disturbance. Sleep data on 20 closed head injury patients and their neuropsychological characteristics are reported. Specific case examples of head injury patiens with or without aphasia who show different sleep patterns are also illustrated. It is concluded that recovery from aphasia may, in fact, be related to the return of normal percent REM sleep and that this phenomenon may be particularly reflective of intact right cerebral hemisphere function. Research linking REM sleep to right hemisphere function is also presented. Potentially sleep studies might be used to help predict recovery from aphasia after traumatic brain injury in young adults.
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