漢字二字熟語の書字行動における語彙使用頻度および書字的複雑性の影響

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概要

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• The processes involved in writing Japanese two-morpheme (Kanji) compound words were investigated to examine the effects of word frequency and Kanji orthographic complexity (i.e., number of strokes). Initiation times for writing heard words revealed that orthographic complexity affected low frequency words (complex 2 689 ms vs. simple 2 395 ms), but not high frequency words (complex 2 124 ms vs. simple 2 150 ms). The interval between writing of the two morphemes also showed this trend (low frequency, complex 693 ms vs. 417 ms; high frequency, complex 478 ms vs. simple 386 ms). The word frequency effect was not apparent in the actual writing time of the right-hand character, although the writing time of the left-hand character varied according to word frequency and, naturally, orthographic complexity. However, there was no interaction between these factors. The explanation was given that, in the case of high-frequency compound words, the two constituent morphemes are tightly bound together, so that subjects are able to easily hold the whole-word unit in the working memory to execute writing. By contrast, for low-frequency compound words, the binding of the two morphemes is not strong, and subjects must therefore refer back to the orthographic representations of the individual morphemes. Thus, activation of both morpheme and word units occurs in the process of writing compound words depending upon word frequency and orthographic complexity.

• 公益社団法人 日本心理学会の論文

著者

• 玉岡 賀津雄

  広島大学

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• 漢字二字熟語の書字行動における語彙使用頻度および書字的複雑性の影響

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