Association between Dopamine Receptor D2 (DRD2) Variations rs6277 and rs1800497 and Cognitive Performance According to Risk Type for Psychosis: A Nested Case Control Study in a Finnish Population Sample

• Hugh Ramsay ,

  * E-mail: drhughramsay@gmail.com

  Affiliations Department of Psychiatry, Centre for Clinical Neuroscience, University of Oulu, Oulu, Finland, Health Service Executive, Dublin, Ireland

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• Jennifer H. Barnett,

  Affiliations Department of Psychiatry, University of Cambridge, Cambridge Biomedical Campus, Cambridge, United Kingdom, Cambridge Cognition Ltd., Bottisham, Cambridge, United Kingdom

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• Jouko Miettunen,

  Affiliations Department of Psychiatry, Centre for Clinical Neuroscience, University of Oulu, Oulu, Finland, Institute of Health Sciences, University of Oulu, Oulu, Finland, Medical Research Center Oulu, University of Oulu and Oulu University Hospital, Oulu, Finland

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• Sari Mukkala,

  Affiliation Department of Psychiatry, Oulu University Hospital, Oulu, Finland

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• Pirjo Mäki,

  Affiliations Department of Psychiatry, Centre for Clinical Neuroscience, University of Oulu, Oulu, Finland, Department of Psychiatry, Oulu University Hospital, Oulu, Finland, Department of Psychiatry, Länsi-Pohja healthcare district, Finland, Department of Psychiatry, the Middle Ostrobothnia Central Hospital, Kiuru, Finland, Mental health services, Joint Municipal Authority of Wellbeing in Raahe District, Finland, Mental health services, Basic Health Care District of Kallio, Finland, Visala Hospital, the Northern Ostrobothnia Hospital District, Finland

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• Johanna Liuhanen,

  Affiliation Public Health Genomics Unit, National Institute for Health and Welfare and Institute for Molecular Medicine, Helsinki, Finland

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• Graham K. Murray,

  Affiliation Department of Psychiatry, University of Cambridge, Cambridge Biomedical Campus, Cambridge, United Kingdom

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• Marjo-Riitta Jarvelin,

  Affiliations Department of Public Health Science and General Practice, Institute of Health Sciences, University of Oulu, Oulu, Finland, Faculty of Medicine, School of Public Health, Imperial College London, London, United Kingdom

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• Hanna Ollila,

  Affiliation Public Health Genomics Unit, National Institute for Health and Welfare and Institute for Molecular Medicine, Helsinki, Finland

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• Tiina Paunio,

  Affiliations Public Health Genomics Unit, National Institute for Health and Welfare and Institute for Molecular Medicine, Helsinki, Finland, Department of Psychiatry, Institute of Clinical Medicine, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland

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• Juha Veijola

  Affiliations Department of Psychiatry, Centre for Clinical Neuroscience, University of Oulu, Oulu, Finland, Department of Psychiatry, Oulu University Hospital, Oulu, Finland

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