Related Experiment Video
Updated: May 19, 2026
Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia
Published on: December 2, 2015
Childhood adversity and psychosis: examining whether the association is due to genetic confounding using a
S Alemany1, X Goldberg, R van Winkel
1Anthropology Unit, Department of Animal Biology, Faculty of Biology, University of Barcelona, Avenue Diagonal 643, 08028 Barcelona, Spain.
Purpose:
To test whether the association between childhood adversity and positive and negative psychotic experiences is due to genetic confounding.
Method:
Childhood adversity and psychotic experiences were assessed in an ongoing sample of 226 twins from the general population. A monozygotic (MZ) twin differences approach was used to assess possible genetic confounding.
Results:
In the whole sample, childhood adversity was significantly associated with positive (β=45; SE=0.16; P=0.008) and negative psychotic experiences (β=0.77; SE=0.18; P<0.01). Within-pair MZ twin differences in exposure to childhood adversity were significantly associated with differences in positive (β=71; SE=0.29; P=0.016) and negative psychotic experiences (β=98; SE=0.38; P=0.014) in a subsample of 85 MZ twin pairs.
Conclusions:
Individuals exposed to childhood adversity are more likely to report psychotic experiences. Furthermore, our findings indicate that this association is not due to genetic confounding.
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