Additional file 1.
Figure S1. The numerical Stroop task. (A) Example stimuli. Participants press a button on the side where they see the numerically larger number. (B) Processing model of the task: The numerical and physical dimensions of the stimulus are analyzed in parallel resulting in numerical magnitude and physical size stimulus representations ('Repr.'). Stimulus conflict can appear when the evaluation of numerical/physical size representations differ. Further, the parallel processed stimulus representations may than trigger the parallel activation of correct and incorrect response channels, potentially resulting in response conflict. Usually only the correct response channel will result in an overt behavioral response. Electro-myography can provide a direct measure of both correct and incorrect response channel activation.
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Szűcs and Soltész BMC Neuroscience 2012 13:35 doi:10.1186/1471-2202-13-35