%0 Journal Article %A Thygesen, Johan H %A Presman, Amelia %A Harju-Seppänen, Jasmine %A Irizar, Haritz %A Jones, Rebecca %A Kuchenbaecker, Karoline %A Lin, Kuang %A Alizadeh, Behrooz Z %A Austin-Zimmerman, Isabelle %A Bartels-Velthuis, Agna %A Bhat, Anjali %A Bruggeman, Richard %A Cahn, Wiepke %A Calafato, Stella %A Crespo-Facorro, Benedicto %A de Haan, Liewe %A de-Zwarte, Sonja M C %A Di-Forti, Marta %A Diez-Revuelta, Alvaro %A Hall, Jeremy %A Hall, Mei-Hua %A Iyegbe, Conrad %A Jablensky, Assen %A Kahn, Rene %A Kalaydjieva, Luba %A Kravariti, Eugenia %A Lawrie, Stephen %A Luykx, Jurjen J %A Mata, Igancio %A McDonald, Colm %A McIntosh, Andrew M %A McQuillin, Andrew %A Muir, Rebecca %A Ophoff, Roel %A Picchioni, Marco %A Prata, Diana P %A Ranlund, Siri %A Rujescu, Dan %A Rutten, Bart P F %A Schulze, Katja %A Shaikh, Madiha %A Schirmbeck, Frederike %A Simons, Claudia J P %A Toulopoulou, Timothea %A van-Amelsvoort, Therese %A van-Haren, Neeltje %A van-Os, Jim %A van-Winkel, Ruud %A Vassos, Evangelos %A Walshe, Muriel %A Weisbrod, Matthias %A Zartaloudi, Eirini %A Bell, Vaughan %A Powell, John %A Lewis, Cathryn M %A Murray, Robin M %A Bramon, Elvira %T Genetic copy number variants, cognition and psychosis: a meta-analysis and a family study. %D 2020 %U http://hdl.handle.net/10668/16010 %X The burden of large and rare copy number genetic variants (CNVs) as well as certain specific CNVs increase the risk of developing schizophrenia . Several cognitive measures are purported schizophrenia endophenotypes and may represent an intermediate point between genetics and the illness. This paper investigates the influence of CNVs on cognition . We conducted a systematic review and meta-analysis of the literature exploring the effect of CNV burden on general intelligence . We included ten primary studies with a total of 18,847 participants and found no evidence of association . In a new psychosis family study, we investigated the effects of CNVs on specific cognitive abilities . We examined the burden of large and rare CNVs (>200 kb, <1% MAF) as well as known schizophrenia -associated CNVs in patients with psychotic disorders , their unaffected relatives and controls (N = 3428) from the Psychosis Endophenotypes International Consortium (PEIC). The carriers of specific schizophrenia -associated CNVs showed poorer performance than non-carriers in immediate (P = 0.0036) and delayed (P = 0.0115) verbal recall. We found suggestive evidence that carriers of schizophrenia -associated CNVs had poorer block design performance (P = 0.0307). We do not find any association between CNV burden and cognition . Our findings show that the known high- risk CNVs are not only associated with schizophrenia and other neurodevelopmental disorders , but are also a contributing factor to impairment in cognitive domains such as memory and perceptual reasoning, and act as intermediate biomarkers of disease risk . %K Predictive markers %K Neuroscience %K Genetics %~