Journal article

Greater preference for eveningness is associated with negative symptoms in an ultra-high risk for psychosis sample

Jashmina J Shetty, Christian Nicholas, Barnaby Nelson, Patrick D McGorry, Suzie Lavoie, Connie Markulev, Miriam R Schafer, Andrew Thompson, Hok Pan Yuen, Alison R Yung, Dorien H Nieman, Lieuwe de Haan, G Paul Amminger, Jessica A Hartmann

Early Intervention in Psychiatry | WILEY | Published : 2021

Abstract

AIM: Investigating biological processes in at-risk individuals may help elucidate the aetiological mechanisms underlying psychosis development, refine prediction models and improve intervention strategies. This study examined the associations between sleep disturbances, chronotype, depressive and psychotic symptoms in individuals at ultra-high risk for psychosis. METHODS: A sample of 81 ultra-high risk patients completed clinical interviews and self-report assessments of chronotype and sleep during the Neurapro clinical trial. Mixed regression was used to investigate the cross-sectional associations between symptoms and sleep disturbances/chronotype. RESULTS: Sleep disturbances were signific..

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