The common genetic influence over processing speed and white matter microstructure: Evidence from the Old Order Amish and Human Connectome Projects

Autor: Anderson M. Winkler, Laura M. Rowland, Thomas R. Coyle, Florian Muellerklein, Hemalatha Sampath, Jeffrey R. O'Connell, Mao Fu, George Eskandar, Thomas E. Nichols, Anya Savransky, Alan R. Shuldiner, Mary Morrissey, Braxton D. Mitchell, Paul M. Thompson, Xiaoming Du, Peter Kochunov, L. Elliot Hong, Christopher Gaudiot, Binish Patel, Neda Jahanshad
Rok vydání: 2015
Předmět:
Zdroj: NeuroImage. 125
ISSN: 1095-9572
Popis: Speed with which brain performs information processing influences overall cognition and is dependent on the white matter fibers. To understand genetic influences on processing speed and white matter FA, we assessed processing speed and diffusion imaging fractional anisotropy (FA) in related individuals from two populations. Discovery analyses were performed in 146 individuals from large Old Order Amish (OOA) families and findings were replicated in 485 twins and siblings of the Human Connectome Project (HCP). The heritability of processing speed was h(2)=43% and 49% (both p
Databáze: OpenAIRE