“…Reaction time is the latency between critical signal onset and the participant's 1991; Edley & Knopf, 1987). Performance also is usually poorer among participants with clinical diagnoses of schizophrenia, ADHD, learning disability, brain injury, dementia, depression, and anxiety (Beale, Matthew, Oliver, & Corballis, 1987;Chee, Logan, Schachar, Lindsay, & Wachsmuth, 1989;Earle-Boyer, Serper, Davidson, & Harvey, 1991;Goetsch & Adams, 1990;Kaufmann, Fletcher, Levin, Miner, & Ewing-Cobbs, 1993;Mirsky, et al, 1992;Parasuraman, Mutter, & Molloy, 1991).…”