Sleep Medicine
October 1, 2022
Maurice Ohayon, Amir Pakpour
Sleep paralysis is a common phenomenon which causes and consequences are seldomly studied. The aim of this study was to investigate the incidence and prevalence of sleep paralysis (SP) in the American adult population and its evolution on a 3-year period. This longitudinal study was conducted between 2002 and 2015 and included a representative sample of the US general population. A total of...
Sleep
May 25, 2022
Maurice Ohayon, Amir Pakpour, Marie Lise Cote
Abstract Introduction Hypnagogic hallucinations are vivid hallucinations that occur at sleep onset, during the transition between wakefulness and REM sleep. The hallucinations can be visual, auditory, tactile or kinetic and can be terrifying for the individual who experience them. Hypnagogic hallucinations are a common symptom of narcolepsy, a disorder characterized by excessive sleepiness,...
Psychiatry Research
December 27, 2000
Maurice Ohayon
Hallucinations are perceptual phenomena involved in many fields of pathology. Although clinically widely explored, studies in the general population of these phenomena are scant. This issue was investigated using representative samples of the non-institutionalized general population of the United Kingdom, Germany and Italy aged 15 years or over (N=13,057). These surveys were conducted by...
The Journal of Nervous and Mental Disease
June 2000
Maurice Ohayon, R G Priest, J Zulley et al.
Confusional arousals, or sleep drunkenness, occur upon awakening and remain unstudied in the general population. We selected a representative sample from the United Kingdom, Germany, and Italy (N = 13,057) and conducted telephone interviews. Confusional arousals were reported by 2.9% of the sample: 1% (95% confidence interval: .8 to 1.2%) of the sample also presented with memory deficits...
Neurology
April 12, 1999
Maurice Ohayon, J Zulley, Christian Guilleminault et al.
Previous epidemiologic data on sleep paralysis (SP) came from small specific samples. The true prevalence and associated factors of SP in the general population remain unknown. A representative sample of the noninstitutionalized general population of Germany and Italy age > or =15 years (n = 8,085) was surveyed by telephone using the Sleep-EVAL questionnaire and the Sleep Questionnaire of...
The Journal of Clinical Psychiatry
April 1999
Maurice Ohayon, Christian Guilleminault, R G Priest
Arousal parasomnias (night terrors, sleepwalking, and confusional arousals) have seldom been investigated in the adult general population. Clinical studies of parasomnias, however, show that these disorders may be indicators of underlying mental disorders and may have serious consequences. A representative sample of the United Kingdom population (N = 4972) was interviewed by telephone with the...
The British Journal of Psychiatry
October 1, 1996
Maurice Ohayon, R G Priest, M Caulet et al.
Hypnagogic and hypnopompic hallucinations are common in narcolepsy. However, the prevalence of these phenomena in the general population is uncertain. A representative community sample of 4972 people in the UK, aged 15-100, was interviewed by telephone (79.6% of those contacted). Interviews were performed by lay interviewers using a computerised system that guided the interviewer through the...