Study of Sleep Inertia in Major Depressive Disorder by the Psychomotor Vigilance Task
The study population comprises three groups of 30 analyzable participants: Patients with sleep inertia and Major Depressive Disorder, patients with Major Depressive Disorder but without sleep inertia, and controls without mood disorders or sleep inertia. Controls will be patients referred to the Sleep Disorders and Acupuncture Unit for polysomnography as part of the screening process for a sleep disorder. Only controls presenting an apnea-hypopnea index \< 15/h, a periodic leg movements index during sleep \< 15/h and a total sleep time ≥ 6 hours on the video-polysomnography will be analyzed.
• The patient must have given their free and informed consent and signed the consent form
• The patient must be a member or beneficiary of a health insurance plan
• Ability to understand, write and read French Inclusion criteria for patients with major depression
• Diagnosis of depression according to DSM-5 criteria
• Suspicion of a sleep disorder requiring polysomnographic screening
• Score for IHSS items 3 and 4
‣ Score ≥ 1 for group with sleep inertia
⁃ Score = 0 for the group without sleep inertia Inclusion criteria for controls
• No complaints of sleep inertia (score = 0 on IHSS items 3 and 4)
• No excessive daytime sleepiness (Epworth Sleepiness Scale score ≤10),
• No depressive symptoms (Hospital Anxiety Depression Scale score \< 8 on items 2, 4, 6, 8, 10, 12, 14).