“…Vigilance and vigilance-like tasks have been shown to discriminate the performance of normal children from those diagnosed as having brain damage (Rosvold, Mirsky, Sarason, Bransome, & Beck, 1956), phenylketonuria (Anderson, Siegel, Fisch, & Wirt, 1969), and learning disability (Anderson, Halcomb, & Doyle, 1973;Swanson, 1980), as well as groups who exhibit poor performance on standardized achievement tests (Kirchner & Knopf, 1974). Perhaps the most consistent finding, however, is that poor vigilance performance is related to childhood hyperactivity (Anderson, Halcomb, & Doyle, 1973;Doyle, Anderson, & Halcomb, 1976;Goldberg & Konstantareas, 1979;Loiselle, Stamm, Maitinsky, & Whipple, 1980;and Rapoport et al, 1980).…”