The Mediating Role of Processing Speed in Reading-Related White Matter Tracts and Word Reading Skills of Adult Survivors of Childhood Brain Tumor
Date of Award
Master of Arts (MA)
Tricia King, Ph.D.
Robin Morris, Ph.D.
Christopher Henrich, Ph.D.
The purpose of this study was to investigate the relationship between word reading and white matter (WM) integrity in the reading system and test a theory-based moderated mediation model such that relationship of WM integrity with word reading is mediated by processing speed and indirect effect is moderated by group. Thirty-seven adult survivors of childhood brain tumor and typically developing adults participated (mean age=24.19(4.51) years, 62% female). Tractography identified the WM tract for three reading system connections. Fractional anisotropy of the IFOF and PT-OT tracts were significantly correlated with word reading in survivors (r=.55, .46, respectively; p
Smith, Kristen M., "The Mediating Role of Processing Speed in Reading-Related White Matter Tracts and Word Reading Skills of Adult Survivors of Childhood Brain Tumor." Thesis, Georgia State University, 2013.