“…In discussions with colleagues at Illinois, it became clear that notions of response competition and continuous flow could fruitfully be explored using measures of motor-system activity. Thus, first with Coles, Morris, and O'Hara (1985) and later with Coles, Gratton, Donchin, andother colleagues (1985, 1988), psychophysiological evidence was obtained that supported these two ideas. First, flankers that call for the incorrect response are, indeed, associated with incorrect electromyographic activity as well as with more central incorrect response activation.…”