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Updated: Jul 17, 2026

Measurement of Fronto-limbic Activity Using an Emotional Oddball Task in Children with Familial High Risk for Schizophrenia
Published on: December 2, 2015
Failure to find P50 suppression deficits in young first-episode patients with schizophrenia and clinically unaffected
O M de Wilde1, L J Bour, P M Dingemans
1Department of Psychiatry, Academic Medical Centre, University of Amsterdam, Tafelbergweg 25, 1105 BC, Amsterdam, The Netherlands. o.dewilde@amc.uva.nl
Objective:
To evaluate whether the P50 gating deficit is present in young first-episode patients with schizophrenia and their healthy young siblings.
Methods:
An auditory paired-click paradigm was used to assess P50 gating in 53 patients, 27 unaffected siblings, and 28 healthy controls. P50 parameters were compared between patients, sibs, and unrelated controls by a mixed-effects regression model.
Results:
P50 gating was not significantly impaired in patients with schizophrenia and healthy siblings as compared with controls.
Conclusions:
P50 gating was not found to be significantly impaired in young first-episode schizophrenia patients and in healthy young siblings. These results are in contrast with the existing literature. We suggest that P50 gating impairment may be developmentally or age dependent.
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