birncommunity. org). FBIRN data was processed Abbreviations of studies:  ADHD-NF = Attention Deficit Hyperactivity Disorder-Neurofeedback Study ;  AMC = Amsterdam Medisch Centrum; Basel = University of Basel ;  Barcelona = University of Barcelona ;  Betula = Swedish  longitudinal study on aging, memory, and dementia;  BIG = Brain Imaging Genetics ; BIL&GIN = a multimodal multidimensional database for investigating hemispheric specialization;  Bonn = University of Bonn ;  BrainSCALE=Brain Structure and Cognition: an Adolescence Longitudinal twin study ;  CAMH = Centre for Addiction and Mental Health; Cardiff = Cardiff University ;  CEG = Cognitive-experimental and Genetic study  of ADHD and Control Sibling Pairs;  CIAM = Cortical Inhibition and Attentional Modulation study; CLiNG = Clinical Neuroscience Göttingen; CODE = formerly Cognitive Behavioral Analysis System of Psychotherapy (CBASP) study ;  Edinburgh = The University of Edinburgh ;  ENIGMA-HIV = Enhancing NeuroImaging Genetics through Meta-Analysis-Human Immunodeficiency Virus Working Group; ENIGMA-OCD = Enhancing NeuroImaging Genetics through Meta-Analysis-Obsessive Compulsive Disorder Working Group; FBIRN = Function Biomedical Informatics Research Network; FIDMAG = Fundación para la Investigación y Docencia Maria Angustias Giménez; GSP = Brain Genomics Superstruct Project ;  HMS = Homburg Multidiagnosis Study; HUBIN = Human Brain Informatics; IDIVAL = Valdecilla Biomedical Research Institute; IMAGEN = the IMAGEN Consortium; IMH=Institute of Mental Health, Singapore; IMpACT = The International Multicentre persistent ADHD Genetics Collaboration ;  Indiana = Indiana University School of Medicine; Johns Hopkins = Johns Hopkins University ; KaSP= The Karolinska Schizophrenia Project;  Leiden = Leiden University; MAS = Memory and Ageing Study; MCIC = MIND Clinical Imaging Consortium  formed by the  Mental Illness and Neuroscience Discovery (MIND) Institute now the Mind Research Network; Melbourne = University of Melbourne ;  Meth-CT = study of methamphetamine users ,  University of Cape Town ;  MHRC = Mental Health Research Center ; Muenster = Muenster University; NESDA = The  Netherlands Study of Depression and Anxiety; NeuroIMAGE = Dutch part of the International Multicenter ADHD Genetics (IMAGE) study ; Neuroventure: the imaging part of the  Co-Venture Trial  funded by the  Canadian Institutes of Health Research (CIHR) ;  NCNG = Norwegian Cognitive NeuroGenetics  sample;  NTR = Netherlands Twin Register ;  NU = Northwestern University ;  NUIG = National University of Ireland Galway ;  NYU = New York University ;  OATS = Older Australian Twins Study ;  Olin = Olin Neuropsychiatric Research Center; Oxford =Oxford University ;  QTIM = Queensland Twin Imaging ;  Sao Paulo = University of Sao Paulo ;  SCORE = University of Basel Study ;  SHIP-2  and SHIP  TREND = Study of Health in Pomerania; Staged-Dep= Stages of Depression Study ;  Stanford = Stanford University ;  StrokeMRI = Stroke Magnetic Resonance Imaging ;  Sydney = University of Sydney ;  TOP = Tematisk Område Psykoser (Thematically Organized Psychosis Research) ;  TS-EUROTRAIN = European-Wide Investigation and Training Network on the Etiology  and.