모음조화 연속체의 발화 수월성과 공유자질 수와의 관계

This paper investigates whether the facilitative effect of vowel harmony on speech production is related to the number of vowel features shared. Previous studies have shown that there is a cross-linguistic facilitative effect on the fast production of backness harmonic sequences over dishamonic ones (English in Cole et al. (2002), Spanish in Linebaugh & Cole (2005), Korean in Oh & Cole (2006), Turkish in Altan (2008)). In the form of fewer errors, the facilitative effect was observed only in the backness harmonic sequences, but not in the height harmonic sequences. A question can be raised whether such biased facilitative effect is due to the difference in the number of features shared, because backness harmonic sequences share both [±back] and [±round] features whereas height harmonic sequences share only one [±high] feature. To answer the question, a new experiment was designed where the number of vowel features shared was controlled equally in vowel harmonic sequences. The results of the experiment showed that the facilitative effect was manifested only in the backness harmonic sequences with respect to how fewer errors were made, which are the same as in the previous studies. Along with the results of Oh (2010), these results reveal that there is no relationship between the number of features shared and the facilitative effect in vowel harmonic sequences.