Local Sleep in Idiopathic Hypersomnia

EEG recording while awake, at rest then during an attentional cognitive test

Sustained attention go-no-go task (press a button each time a number is presented on a screen (1/second) except when the 3 appears) Assessment of mental status approximately every 45 seconds (task focus, mind wandering, mental blank, and sleepiness status)

Study of pupil size and gaze path during the cognitive test (correlated with alertness)

Abdominal and thoracic belts (used in all nocturnal polysomnographic recordings) for respiratory movement studies (correlated with sleepiness)