text: …observed for click-evoked and tone-evoked responses (Hoormann et al., 1992) as well as behavioral and cognitive processing differences in humans (Burman et al., 2008; Cahill, 2006; Camarata and Woodcock, 2006) and animals (Clark et al., 2000a,b; Fitch et al., 1993b; Herman et al., 1997).