“…If the stimuli are attended to, the N100 response increases (Hillyard et al , 1973; Hari et al , 1989). If attention is distracted from the stimulating tones, the N100 decreases (Papanicolaou et al , 1988; Corbetta et al , 1990; Numminen et al , 1999; Ford et al , 2001 a , b , c ).…”