발달성협응장애 아동의 반응시간에 관한 예비연구

국문 초록 (Abstract)

본 연구는 정보처리 단계에서 주어지는 인지적 부하의 차이에 따른 발달성협응장애 아동(children with developmental coordination disorder)과 일반아동(typically developing children, TD) 간의 반응속도의 차이를 규명하고자 하였다. 본실험에 앞서 발달성협응장애 아동을 선별하기 위하여 국내 소재의 I시 H 초등학교의 2학년생 102명을 대상으로 운동발달검사인 Movement Assessment Battery for Children-2(MABC-2)를 실시하였다. 이 중 부모와 아동이 본 실험에 참여하는 것을 동의한 일반 아동 5명, 발달성협응장애 아동 6명을 대상으로 자극의 종류 및 자극-반응 선택 대안의 수에따른 총 4가지 조건에서의 단순반응시간, 선택반응시간, 변별반응시간을 측정하였다. 수집한 데이터는 감각정보의 종류(시각-청각)와 자극-반응의 수(단순-선택/단순-변별)의 차이에 따른 반응시간의 차이를 규명하기 위하여 각각 독립표본t 검정과 반복측정이 있는 일원분산분석을 실시하였다. 그 결과, 발달성협응장애 아동은 일반 아동과 비교하여 모든 조건에서 자극-반응 선택 대안의 수가 늘어날수록 더 긴 반응시간을 보였다. 또한 청각-단순반응시간, 2개-선택반응시간, 3개-변별반응시간 조건에서 집단 간 통계적으로 유의한 차이가 나타났다. 이를 통하여 발달성협응장애 아동은 일반아동보다 정보처리에 더 많은 시간이 소요되는 특성이 보이며, 학교 현장에서는 이를 고려한 수업 계획 및 지도가 이루어져야 한다는 실험적 근거를 제시고자 한다.

다국어 초록 (Multilingual Abstract)

The purpose of the current study was to investigate differences of speed on reaction time with respect to cognitive loading between children with developmental coordination disorder (DCD) and typically developing children (TD) in Korea. Movement assessment battery for children-2 (MABC-2) was used to screen DCD and TD groups in 102 H elementary school students located in I Borough, South Korea. Among them, 6 children with DCD and 5 TD children participated voluntarily and were request to perform a pressing-button task as possible as quickly with four conditions (visual-simple reaction time, auditory-simple reaction time, visual-choice reaction time, and visual-discriminate reaction time). An independent-sample t test and One-way repeated measures analysis of variance (p<.05) with a Bonfferoni post hoc test were conducted to exam differences regarding to types of sensory information and the numbers of stimulus-response choices in reaction time, respectively. As a result, reaction times in simple, choice, and discriminate reaction time task were prolonged in DCD, compared with TD. Significant differences were found in auditory-simple reaction time, choice reaction time with 3 visual stimulus-response choices, and discriminate reaction time with 2 visual stimulus-response choices between the groups. This result indicates that children with DCD showed longer time for processing information than TD and DCD and seems to need more time to process information from external environment for choosing appropriate responses. This present study suggests an experimental evidence to teachers and instructors when they plan classes for physical education or activity for children with DCD.

목차 (Table of Contents)

• 국문초록
• Ⅰ. 서론
• Ⅱ. 연구방법
• 1. 연구 대상
• 2. 연구 도구
• 3. 조사 절차 및 자료 처리
• Ⅲ. 연구 결과
• 1. 운동발달검사 결과
• 2. 감각정보의 종류에 따른 단순반응시간의 차이
• 3. 자극의 개수에 따른 선택반응시간의 차이
• 4. 자극의 개수에 따른 변별반응시간의 차이
• Ⅳ. 논의 및 결론
• 참고문헌
• ABSTRACTS

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