“…The presence or absence of attention deficits cannot be used as a basis for differentiation between these disorders. Poorer selective attention (Ross, 1976), greater distractibility (Hebben et al 1981), slower reaction times (Dykman, Walls, Suzuki, Ackerman & Peters, 1970;Rugel & Rosenthal, 1974), and poorer sustained attention (Doyle et al, 1976;Dykman et al, 1979) have all been documented in learning disabled children. Sanson (1984) attempted to identify differences between purely LD, hyperactive LD and hyperactive non-LD children on a range of tasks including auditory and visual attention.…”