名詞句産出における句内の語のアクセス容易性とその語順との関係

抄録

 Previous studies of phrase production process in English have indicated that conceptual level accessibility of a word affects a functional process when grammatical roles such as subject, object, and so on, are attached to each word. Consequently, the resulting the functional process concerns decisions regarding word order in a positional process. Studies have also indicated that lexical level accessibility directly affects the positional process, which is related to decisions regarding coordination word order. Studies of Japanese, however, have indicated that conceptual level accessibility affects both functional and positional processing,but it remains to be considered whether lexical level accessibility affects positional processing. In this study, the first three experiments investigated whether an adjective with higher lexical level accessibility in a noun phrase with two attributive adjectives tends to be preposed. Drawing on previous studies, experiment 1 asked participants to memorize noun phrases and to recall two adjectives with the head noun as a cue; experiment 2 asked participants to sort two adjectives to fit a head noun and to wrap up a noun phrase. The results show no difference in the order of adjectives related to accessibility because the production process for noun phrases in these tasks is affected by direct priming. Experiment 3 presented head nouns to participants and asked them to fill in two blanks with suitable adjectives. The results show that attributive adjectives with higher familiarity tend to be preposed. To investigate replication in other expressions, experiment 4 presented coordinate conjunctions to participants and asked them to fill in two blanks with suitable nouns. The results show that nouns with fewer characters tend to be preposed. These results indicate that, although weaker in effect, lexical level accessibility affects the positional process in Japanese phrase production.