“…Recently, behavioral testing methodologies have been developed that place a stronger emphasis on the dynamics of the action-based components of RS (Duran, Dale, & McNamara, 2010;Spivey, Grosjean, & Knoblich, 2005). As one example, by tracking the streaming pixelcoordinate trajectories of computer-mouse movements as the cursor is moved to a presented stimulus, one can obtain an action-based index of the co-activation of stimulusresponse (S-R) alternatives representations (Freeman, Dale, Farmer, 2011;Song & Nakayama, 2006;Spivey et al, 2005;Magnuson et al, 2007). The continuous nature of the movement trajectories can provide more direct evidence for competition between response options that cannot be easily detected when reaction time (RT) is the primary measure (Eriksen & Eriksen, 1974;Kornblum, 1965;Miller, 1988Miller, , 1993.…”