Evidence for Cognitive Endophenotypes in Multiplex, but Not Simplex ASD and ADHD Families? A Focus On Unaffected Siblings

A. M. Oerlemans1,2, Y. G. E. De Bruijn2, D. J. van Steijn2, B. Franke1,3, J. K. Buitelaar2,4 and N. N. J. Rommelse1,2, (1)Department of Psychiatry, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands, (2)Karakter Child and Adolescent Psychiatry University Centre Nijmegen, Nijmegen, Netherlands, (3)Department of Human genetics, Radboud University Medical Centre, Nijmegen, Netherlands, (4)Department of Cognitive Neuroscience, Radboud University Nijmegen Medical Centre, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands