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J Sleep Res. 2006 Sep;15(3):329-38.

Cognitive deficits in narcolepsy.

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Department of Neuropsychology, Institute of Cognitive Neuroscience, Ruhr-University of Bochum, Bochum, Germany.


The aim of the investigations was to explore the nature and the severity of cognitive deficits in narcolepsy patients. In two studies, narcolepsy patients were compared with matched control subjects on a range of attention, memory and executive control tasks. Impairments were only observed on attention and executive function tasks which involved higher demands on inhibition or task management abilities whereas relatively routine memory and attention tasks yielded intact performance in narcolepsy patients. The overall pattern of results indicates an executive control deficit in narcolepsy which might be related to a reduction of available cognitive processing resources because of the need for continuous allocation of resources to monitoring and maintenance of vigilance.

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