“…Mild TBI in school-aged children and adolescents is generally regarded as leaving no permanent measurable neuropsychological sequelae (Asarnow et al, 1995;Bijur & Haslum, 1995;Fay et al, 1993). However, infants and preschool-aged children may be disproportionately affected by TBI ranging from mild to severe in the areas of intelligence (Anderson, Catroppa, Morse, Haritou, & Rosenfeld, 2000;Anderson et al, 1997;Ewing-Cobbs, Miner, Fletcher, & Levin, 1989), speeded perceptual motor tasks (Thompson et al, 1994), sustained and selective attention (Dennis, Wilkinson, Koski, & Humphreys, 1995;EwingCobbs, Prasad, et al, 1998), metacognition and executive functions (Dennis, Barnes, Donnelly, Wilkinson, & Humphreys, 1996;Levin et al, 1996;Levin, Song, Ewing-Cobbs, Chapman, & Mendelsohn, 2001), language and discourse (Brookshire, Chapman, Song, & Levin, 2000;Chapman et al, 1992;Chapman, Levin, Matejka, Harward, & Kufera, 1995;Ewing-Cobbs, Levin, Eisenberg, & Fletcher, 1987), and word decoding (Barnes, Dennis, & Wilkinson, 1999;EwingCobbs et al, in press;Shaffer, Bijur, & Rutter, 1980;Wrightson, McGinn, & Gronwall, 1995).…”