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The Association Between Childhood Impaired Motor Development and Adolescent Psychotic Experiences.
P J Hamers1, D C Bouter1, S Dieleman1
1Erasmus MC University Medical Center, Rotterdam, University Medical Center Rotterdam, Rotterdam, Netherlands.
Developmental Psychobiology
|May 15, 2025
Summary
Childhood motor impairments are linked to later psychotic experiences (PE) in adolescents. This suggests early motor development issues may be an important risk marker for psychosis spectrum disorders.
Area of Science:
- Neuroscience
- Developmental Psychology
- Psychiatry
Background:
- Psychosis spectrum disorders are increasingly recognized as neurodevelopmental conditions.
- Motor impairments in childhood are hypothesized as potential early risk indicators for these disorders.
Purpose of the Study:
- To investigate the association between impaired childhood motor development and psychotic experiences (PE) in adolescents.
- To determine if motor development issues predict the emergence or increase of PE during adolescence.
Main Methods:
- A cohort of 658 adolescents, oversampled for emotional and behavioral problems, was studied.
- Retrospective parental reports on childhood motor development were collected.
- Adolescents completed the Prodromal Questionnaire (PQ-16) to assess PE at ages ~15 and ~18.
- Multiple linear regression analyses were used to examine the associations.
Main Results:
- Childhood impaired motor development was significantly associated with higher levels of adolescent PE at age 17.
- Motor impairments predicted an increase in PE between the two assessment points.
- This association was particularly strong for hallucinatory experiences, but not delusional experiences.
Conclusions:
- Impaired childhood motor development may serve as an early risk marker for adolescent psychotic experiences.
- Findings support the neurodevelopmental model of psychosis spectrum disorders.
- Further research and precise assessment tools are needed to explore these early risk associations.
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