Sanne Koops

2 papers in the library · 55 citations · publishing 2022-2026

Papers

Occurrence and phenomenology of hallucinations in the general population: A large online survey

Schizophrenia April 23, 2022 Mascha M.J. Linszen, Janna De Boer, Maya Schutte et al. 55 citations

Hallucinations occur in 6-15% of the general population, but their detailed characteristics are poorly understood. In a large online survey of 10,448 participants aged 14-88, auditory hallucinations were most common in the past month (29.5%), followed by visual (21.5%), tactile (19.9%), and olfactory (17.3%); nearly half (47.6%) experienced hallucinations in two or more senses. Many participants rated their hallucinations as severe due to negative content (16.0-31.6%), distress (10.5-16.8%), or dysfunction (12.7-17.3%). Decreased insight occurred in 10.2-11.4%, hypnagogia in 9.0-10.6%, and bereavement hallucinations in 2.8%. Delusions were rare (7.0%) but significantly associated with recent hallucinations. The findings indicate a wide variety of hallucination phenomenology in the general population and support a phenomenological continuum.

DOI: 10.1038/s41537-022-00229-9 Full text Visual hallucination Phenomenology philosophy Population Distress +7

Using AI to Detect Psychosis Relapse: Scoping Review.

JMIR Ment Health June 16, 2026 Lorenzo Ghelfi, Jack Healy, Francesco Piacenza et al.

A scoping review of 10 studies found that artificial intelligence methods, including machine learning and digital phenotyping via smartphones and wearables, show promise for detecting relapse in psychotic disorders but have significant limitations. The sensitivity of AI models ranged from 0.25 to 0.77 and specificity from 0.06 to 0.88, with area under the curve between 0.63 and 0.78. Models were heterogeneous and most findings were not replicated. The review concludes that while personalized approaches with individual-level modeling are promising, larger studies and methods such as large language models are needed before AI can be used in real-world clinical practice.

DOI: 10.2196/92192 Full text