Sleep and @entity1118 : challenges to the alpha-EEG sleep pattern as a XXXX specific @entity25 .

@entity1 @entity154 @entity239 @entity146 @entity158 @entity5815 @entity1118 @entity25
OBJECTIVE: The alpha-EEG @entity25 has been associated with chronic @entity158 . Although controversial, the @entity154 is believed by some to be an important biologic correlate of certain otherwise poorly explained painful conditions (e.g., @entity239 and @entity5815 ). To shed further light on this phenomenon, this study compared the sleep and psychological characteristics of @entity1118 @entity1 who exhibited the alpha-EEG @entity25 with @entity158 -free @entity146 and medical @entity1 who also were found to exhibit the alpha-EEG @entity154 . METHODS: The alpha-EEG sleep was identified in the polysomnographic records of 5% of over 1000 consecutive sleep @entity1 . Objective sleep parameters, @entity25 and psychological characteristics (Minnesota Multiphasic Personality Inventory [MMPI] scores) of @entity1 exhibiting this @entity154 were examined. RESULTS: The alpha-EEG @entity154 was identified in only 5% of the total @entity1 sample. @entity1 with the alpha-EEG @entity154 could be further classified into three diagnostic subgroups: @entity1118 , @entity146 and other @entity25 , The subgroups were compared on sleep parameters and psychological characteristics. Less than 40% of the @entity1 exhibiting the alpha-EEG @entity154 experienced @entity1118 . @entity1118 @entity1 evidenced disturbed sleep patterns and psychological characteristics that were for the most part similar to those observed in some @entity158 -free medical and @entity146 @entity1 . Only the medical subgroup exhibited objective @entity25 . The alpha-EEG sleep disturbance was not accounted for by psychological characteristics. CONCLUSIONS: These findings challenge the notion that alpha-EEG sleep is of direct etiological significance in producing the @entity158 complaint among @entity1 with @entity1118 since the alpha-EEG sleep was not a sufficient condition for @entity158 .
