ISSN : 1226-9654
Two experiments pitted the residual capacity hypothesis against the failure of attention control hypothesis regarding the perception of nontargets in a Rock & Gutman (1981) incidental learning task (H.-J. Kim & J.-O. Kim, 2010; H.-U. Cho & J.-O. Kim, 2010). Rock and Gutman demonstrated that inattentional nontargets were never recognized. Kim and his colleagues reported the opposite results when participants' perceptual intention regarding the target was systematically varied. The present study tested the predictions of those two hypotheses by varying the order of instructions (Experiment 1) or by presenting participants with two overlapped shapes as a recognition item (Experiment 2). The pattern of our results supports the residual capacity hypothesis while rejecting the failure of attention control hypothesis.