"Aha" effects refer to the phenomenon that a transition from a state of comprehension to non-comprehension, which can cause an "aha" experience, enhances memory. This study was aimed to compose a set of Japanese sentences and cues causing "aha" experiences, and to confirm "aha" effects with those sentences. 60 seemingly incomprehensible sentences were rated by 79 participants under the conditions with or without corresponding cues that facilitate comprehension of the sentences. 14 easy-to-comprehend and 14 difficult-to-comprehend sentences were selected for the subsequent two experiments. In the experiments, the sentences were read under the conditions in which the cues were embedded in the sentences (within condition) or in which cues followed them (post-cue condition). The results of Experiment 2 demonstrated that the sentences in the post-cue condition were remembered better than those in the within condition regardless of the ease of the sentences. Several possible mental processes responsible for the effects are discussed.

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[in Japanese]

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[in Japanese]

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[in Japanese]

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