Universität zu Köln

Michel, C., Lerch, S., Buetiger, J. R., Flueckiger, R., Cavelti, M., Koenig, J., Kaess, M. and Kindler, J. . An ecological momentary assessment study of age effects on perceptive and non-perceptive clinical high-risk symptoms of psychosis. Eur. Child Adolesc. Psych.. NEW YORK: SPRINGER. ISSN 1435-165X

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Abstract

Among individuals with clinical high risk for psychosis (CHR), perceptive symptoms are more frequent but have less clinical significance in children/adolescents compared to adults. However, findings are based on clinical interviews relying on patient's recall capacity. Ecological momentary assessment (EMA) can be used to explore experiences in real-time in the subject's daily life. The aim of this study was to assess frequency and stability of (perceptive and non-perceptive) CHR symptoms and to explore potential age effects. EMA was used in a sample of an early detection for psychosis service in Bern, Switzerland (N = 66; 11-36 years). CHR symptoms were recorded in random time intervals for seven days: eight assessments per day per subject, minimum time between prompts set at 25 min. CHR symptoms were additionally assessed with semi-structured interviews including the 'Structured Interview for Psychosis-Risk Syndromes' and the 'Schizophrenia Proneness Instruments'. Mixed-effects linear regression analysis on the frequency of CHR symptoms revealed a significant effect of age group, and the interaction CHR symptoms x age group for both perceptive and non-perceptive symptoms. Further, regarding stability of CHR symptoms, there was a significant effect of the interaction CHR symptoms x age group for perceptive symptoms only. Based on EMA, perceptive CHR symptoms were more frequently reported but less stable in children/adolescents compared with adults. Together with previous findings, our finding of higher instability/variability of perceptive symptoms in younger persons might suggest that with advancing age and more stability of CHR symptoms, clinical relevance (reduced psychosocial functioning) may increase.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Michel, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lerch, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Buetiger, J. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Flueckiger, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cavelti, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Koenig, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kaess, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kindler, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-679263
DOI:	10.1007/s00787-022-02003-9
Journal or Publication Title:	Eur. Child Adolesc. Psych.
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1435-165X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language AUDITORY VOCAL HALLUCINATIONS; EXPERIENCE SAMPLING RESEARCH; ULTRA-HIGH-RISK; UNTREATED PSYCHOSIS; EPA GUIDANCE; DAILY-LIFE; SCHIZOPHRENIA; INDIVIDUALS; PREVALENCE; DISORDERS Multiple languages Psychology, Developmental; Pediatrics; Psychiatry Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/67926