Understanding Hallucinations (Part I) (UH-1)

UMC Utrecht

Status

Unknown

Conditions

No Hallucinations

Hallucinations

Study type

Observational

Funder types

Other

Identifiers

NCT01907568

UH-1

NL42959.041.13 (Other Identifier)

Details and patient eligibility

About

Psychotic symptoms (hallucinations and delusions) are present in several psychiatric and neurological disorders as well as in the general population. Effective treatment strategies for these symptoms in all patients are lacking and treatment-response can presently not be predicted. To date, the exact pathophysiological mechanism of these symptoms remains unknown. By investigating (subtypes) of hallucinations and delusions in all populations, a common pathway may be found, leading to more effective treatment options. Alternatively, different subtypes may be associated with different pathophysiological mechanisms.

Enrollment

700 estimated patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

age > 18 years
mentally competent
in case of delirium: family member able to give informed consent
Individuals with hallucinations will have to experience at least one episode of hallucinations over the last month.
Individuals without hallucinations: no current hallucinations and a history of maximum 1 episode of hallucinations with a maximum duration of 1 week, at least two years ago.

Exclusion criteria

Age <18)
Participants that cannot read, speak or understand Dutch
For all included diagnostic groups except delirium: Mentally incompetent individuals who are not capable to provide informed consent, as determined by their treating physician.