Einar Vedul-Kjelsås

2 papers in the library · publishing 2019-2021

Papers

In the twilight zone: An epidemiological study of sleep-related hallucinations.

Comprehensive Psychiatry July 1, 2021 Josef J Bless, Kenneth Hugdahl, Bodil Kråkvik et al.

Hypnagogic and hypnopompic hallucinations (HHHs) are common in the general population, with auditory HHHs occurring in 6.8% of people, multimodal HHHs in 12.3%, and out-of-body experiences at sleep onset/offset in 32.2%. Individuals who experience only auditory HHHs report less frequent, less disturbing, and more neutral hallucinations, with less influence on behavior and social life, compared to those who also have daytime hallucinations. They also score similarly to non-hallucinating individuals on mental health, anxiety, childhood happiness, and wellbeing measures. The average age of first onset for purely auditory HHHs is 28.2 years, later than for daytime-only (20.9 years) or combined groups (19.1 years).

DOI: 10.1016/j.comppsych.2021.152247 Full text Auditory Epidemiological Hallucinations Hypnagogic +3

An epidemiological study on the prevalence of hallucinations in a general-population sample: Effects of age and sensory modality.

Psychiatry Research February 1, 2019 Frank Larøi, Josef J Bless, Julien Laloyaux et al.

Hallucination prevalence decreases with age across all sensory modalities—auditory, visual, olfactory, and tactile—as well as for sensed presence and hypnagogic/hypnopompic types. In a large representative Norwegian sample, young adults (19–30 years) reported the highest rates, middle-aged (31–60) intermediate, and older adults (61–96) the lowest. Anxiety partially mediated this age effect, while depression acted as a partial suppressor. Co-occurrence of auditory and visual hallucinations was minimal across all age groups. The general population reports a wider variety of hallucination modalities than is typically seen in clinical populations.

DOI: 10.1016/j.psychres.2019.01.003 Full text Hypnagogic Hypnopompic Olfactory Sensed presence +1