Eleven Ss learned the sequential redundancies present in a choice reaction time (RT) task, as inferred from their ability to verbally anticipate the stimulus event to a designated criterion. These Ss showed a transition from choice to simple RT. Five Ss did not learn the redundancies to this criterion. Except for a first trial RT decrement, they behaved as did a control group of eight Ss in remaining at the choice RT level. The results suggested a technique useful in the study of cognitive determinants of RT.
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