Accuracy and mean reaction time data for the two monkeys.

<p>Accuracy and mean reaction times (RTs, in ms ± SEM) for different set sizes and response-hemifield congruency conditions. The top four rows show data for each set size, averaged over congruent and incongruent trials. The bottom two rows show data separately for congruent and incongruent trials, each averaged over all set sizes.</p><p>Accuracy and mean reaction time data for the two monkeys.