運動記憶に影響を及ぼす擬態語的音韻の言語化方略

効果発現に関する発達的検討

抄録

This study investigated the developmental changes in effect of verbalization strategy of onomatopeia on the motor memory. Blindfolded subjects in four agegroups (5 years, 8 years, 11 years, adults) were required to move the linear positioning slide horizontally away from the body with preferred arm, with or without the verbalization of onomatopeia (criterion movement). Task length was 1/3 and 2/3 of arm-extended length. This length was repeated 30, 90, and 150 seconds interval after criterion movements with or without verbalization of onomatopeia. The result was as follows.(1) Verbalization throughout criterion and reproduction movement promoted the reproduction movement in spite of the ages ; (2) Verbalization during criterion movements promoted the correct reproduction in 5 and 8 year old subjects, whereas it disturbed the reproduction in 11-year-old subjects and adults. These differences of performance reflecting whether subjects could use strategies of their own spontaneously in memorizing the task movement were discussed.