Experimental design.

<p>The initial learning phase with overt repetition was followed by two experimental manipulations, through noise and task. <i>The noise manipulation</i> included overt repetition of familiar and new word forms in two levels of noise. <i>The task manipulation</i> consisted of a 1-back control task and a recognition task that were performed on familiar and new word form stimuli. Stimulus presentation and response timing in the different experimental conditions is illustrated below.