ジャンケン動作に於ける同期パターンの出現メカニズムとその発達

抄録

With a dual task consisting of verbalization and hand-arm action, the purposes of the present study were to examine how the child's verbalization (V) and hand-arm action (A) come to synchronize with the adult's V-A. Eighty-nine children from 2 to 6 years of age participated in the Jan-ken movement composed of 2 rhythmic conditions (triple, duple time). Our hypotheses on the emergence and the developmental sequence of the sy nchrony pattern were supported by the main results as follows: (1) 2 and 3 year olds showed pattern (I) in which the child's V-A didn't synchronize with the adult'sV-A,(2) above the 3 year olds dominantly showed pattern (II) synchronizing their own A with the adult's V-A, and (3) pattern (III) was observed especially in 5 to 6 year-old children whose V-A. were integrated to synchronize with the adult's V-A. But when the adult changed his rhythm, about half of the (III) children leveled down to (II). These findings suggested the importance of modification of endogenous rhythm into the exogenous one for an interactional synchrony.