TY - JOUR
T1 - Effect of polygenic scores on the relationship between psychosis and cognition
AU - Varney, Lauren
AU - Jedlovszky, Krisztina
AU - Wang, Baihan
AU - Murtough, Stephen
AU - Cotic, Marius
AU - Richards-Belle, Alvin
AU - Saadullah Khani, Noushin
AU - Lau, Robin
AU - Abidoph, Rosemary
AU - McQuillin, Andrew
AU - Thygesen, Johan H.
AU - Weisbrod, Matthias
AU - Rujescu, Dan
AU - Powell, John
AU - McIntosh, Andrew M.
AU - Lin, Kuang
AU - Lewis, Cathryn
AU - Giegling, Ina
AU - Di Forti, Marta
AU - Arranz, Maria J.
AU - van Haren, Neeltje E.M.
AU - Veling, Wim
AU - van Os, Jim
AU - Simons, Claudia J.P.
AU - van der Pluijm, Marieke
AU - de Haan, Lieuwe
AU - Cahn, Wiepke
AU - van Amelsvoort, Therese
AU - Alizadeh, Behrooz Z.
AU - Bender, Stephan
AU - Crespo-Facorro, Benedicto
AU - Hall, Jeremy
AU - Iyegbe, Conrad
AU - Kravariti, Eugenia
AU - Lawrie, Stephen M.
AU - Mata, Ignacio
AU - McDonald, Colm
AU - Murray, Robin M.
AU - Prata, Diana
AU - Toulopoulou, Timothea
AU - van Haren, Neeltje E.M.
AU - Bramon, Elvira
N1 - Publisher Copyright:
© The Author(s) 2025.
PY - 2025/11/21
Y1 - 2025/11/21
N2 - Cognitive impairment is an important but often under-researched symptom in psychosis. Both psychosis and cognition are highly heritable and there is evidence of a genetic effect on the relationship between them. Using samples of adults (N = 4 506) and children (N = 10 981), we investigated the effect of schizophrenia and bipolar disorder polygenic scores on cognitive performance, and intelligence and educational attainment polygenic scores on psychosis presentation. Schizophrenia polygenic score was negatively associated with visuospatial processing in adults (beta: −0.0569; 95% confidence interval [CI]: −0.0926, −0.0212) and working memory (beta: −0.0432; 95% CI: −0.0697, −0.0168), processing speed (beta: −0.0491; 95% CI: −0.0760, −0.0223), episodic memory (betas: −0.0581 to −0.0430; 95% CIs: −0.0847, −0.0162), executive functioning (beta: −0.0423; 95% CI: −0.0692, −0.0155), fluid intelligence (beta: −0.0583; 95% CI: −0.0847, −0.0320), and total intelligence (beta: −0.0458; 95% CI: −0.0709, −0.0206) in children. Bipolar disorder polygenic score was not associated with any cognitive domains studied. Lower polygenic scores for intelligence were associated with greater odds of psychosis in adults (odds ratio [OR]: 0.886; 95% CI: 0.811–0.968). In children, lower polygenic scores for both intelligence (OR: 0.829; 95% CI: 0.777–0.884) and educational attainment (OR: 0.771; 95% CI: 0.724–0.821) were associated with greater odds of psychotic-like experiences. Our findings suggest that polygenic scores for both cognitive phenotypes and psychosis phenotypes are implicated in the relationship between psychosis and cognitive performance. Further research is needed to determine the direction of this effect and the mechanisms by which it occurs.
AB - Cognitive impairment is an important but often under-researched symptom in psychosis. Both psychosis and cognition are highly heritable and there is evidence of a genetic effect on the relationship between them. Using samples of adults (N = 4 506) and children (N = 10 981), we investigated the effect of schizophrenia and bipolar disorder polygenic scores on cognitive performance, and intelligence and educational attainment polygenic scores on psychosis presentation. Schizophrenia polygenic score was negatively associated with visuospatial processing in adults (beta: −0.0569; 95% confidence interval [CI]: −0.0926, −0.0212) and working memory (beta: −0.0432; 95% CI: −0.0697, −0.0168), processing speed (beta: −0.0491; 95% CI: −0.0760, −0.0223), episodic memory (betas: −0.0581 to −0.0430; 95% CIs: −0.0847, −0.0162), executive functioning (beta: −0.0423; 95% CI: −0.0692, −0.0155), fluid intelligence (beta: −0.0583; 95% CI: −0.0847, −0.0320), and total intelligence (beta: −0.0458; 95% CI: −0.0709, −0.0206) in children. Bipolar disorder polygenic score was not associated with any cognitive domains studied. Lower polygenic scores for intelligence were associated with greater odds of psychosis in adults (odds ratio [OR]: 0.886; 95% CI: 0.811–0.968). In children, lower polygenic scores for both intelligence (OR: 0.829; 95% CI: 0.777–0.884) and educational attainment (OR: 0.771; 95% CI: 0.724–0.821) were associated with greater odds of psychotic-like experiences. Our findings suggest that polygenic scores for both cognitive phenotypes and psychosis phenotypes are implicated in the relationship between psychosis and cognitive performance. Further research is needed to determine the direction of this effect and the mechanisms by which it occurs.
UR - https://www.scopus.com/pages/publications/105022670743
U2 - 10.1038/s41398-025-03666-z
DO - 10.1038/s41398-025-03666-z
M3 - Article
C2 - 41271631
AN - SCOPUS:105022670743
SN - 2158-3188
VL - 15
JO - Translational Psychiatry
JF - Translational Psychiatry
IS - 1
M1 - 491
ER -