Delusional confusion of dreaming and reality in narcolepsy.
Sleep February 1, 2014 Erin J. Wamsley, Claire E H M Donjacour, Thomas E Scammell et al.
A distinctive feature of narcolepsy, termed 'dream delusions,' occurs when patients mistake the memory of a vivid dream for a real experience and form sustained false beliefs that can persist for days or weeks. In interviews with 46 narcolepsy patients with cataplexy and 41 healthy controls at academic medical centers in Boston and Leiden, dream delusions were surprisingly common and often severe, differing from fleeting hypnagogic or hypnopompic hallucinations. These false memories suggest source memory deficits in narcolepsy that have not yet been fully characterized.