FIG. 3.

The effect of directing attention in the consistent condition. There was a higher percentage of correct responses when attending location (solid lines, triangular markers) than when attending pitch (dashed lines, circular markers), despite the fact that for both sets of instructions, both location and pitch could have helped reinforce the correct digits. The x-axes of the upper panel (A) represent angle separation, with each of the three plots corresponding to one of three pitch separations, increasing from left to right. The lower three plots (B) show the same data with the x-axes now representing pitch separation and each of the three plots corresponding to one of the three location separations. Correct responses in the attend-location blocks increased with spatial separation, but were unaffected by pitch separation. In the attend-pitch trials, the percentage of correct responses increased with both the task-relevant feature and the task-irrelevant feature. Error bars represent ±1 SEM.