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Fig. 1 | Cognitive Research: Principles and Implications

Fig. 1

From: Unintentional forgetting is beyond cognitive control

Fig. 1

The general methods for all three experiments. In the study phase, subjects fixated a central fixation point for 500 ms, followed by the presentation of the stimuli for 5000 ms, until all stimuli were presented. The subjects were instructed to remember each item for a later memory test. The study phase was followed by a 5-min visual distractor task. In the practice phase, half of the items from half of the categories were again presented along with an equal number of novel items. Subjects engaged in recognition practice by completing an old–-new recognition judgment task in response to each item. Each old item was practiced on two practice trials. The practice lures were items drawn from the same categories as the practice items. The second phase was followed by another 5-min visual distractor task. The test phase employed the same old–new recognition judgment task as the second phase, but included 36 old stimuli from the study phase (12 baseline, 12 practiced, and 12 related), as well as an equal number of novel test lures from the same categories. Hit rates from this test phase are presented in Figs. 2, 3 and 4

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