영유아의 原始反射에 關한 硏究 = Study on Primitive Reflexes in Infants and Children

다국어 초록 (Multilingual Abstract)

A large number of reflex patterns, mediated by brain stem and spinal cord mechanisms, are found in the newborn infant and during the first few months of postnatal life.
Absence of reflex responses lndicates general depression of central or peripheral motor functions, asymmetric responses suggest focal motor lesions, either peripheral or central. As the infants mature, the neonatal reflexes disappear in a predctable order as voluntary motor functions supersed them. Abnormal persistence of these reflexes is seen in infants with general developmental lag or with central motor lesions.
Present study was carried out to determined the age at primitive reflex usually appears and no longer obtainable in normal or abnormal infants and children. 124 of normal infants and children age of 2 months to 3 years and 115 who with cerebral palsy age of 7 months to 8 years were studied and results obtained were as follows.
1. Moro reflex in normal infants was appeared from soon after birth and the age of no longer obtainable was 3 months to 6 months after birth. Positive Moro reflex was found in only 4.3% of children with cerebral palsy after 1 year of age.
2. The asymmetrical tonic neck reflex was prominent in 20% of infants age of 2 to 4 months. Persistence of the response past age of 6 to 9 months occurred in 48% of children with cerebral palsy, especially in athetotic type.
3. The tonic labylinthine reflex was negative for all of the normal infants, but 25.6% of children with cerebral palsy showed positive response, especially athetotic type.
4. Supporting reflex in normal infants was appeared since 2 weeks after birth and 25% of infants below 2 months, 100% of after 6 months of age showed positive. Although children with cerebral palsy had lower response than normal and 79.1% was positive post 6 months of age.
5. The neck righting reflex consist of rotation of the trunk in the direction in which the head of the supine infant is turned. It was decreased in infants with cerebral palsy and only 61.5% was positive at the age of 1 year.
6. Labyrinthine righting reflex was appeared at age of 5 months and all of the cases were positive after 8 months of age in normal infants, but in infants with cerebral palsy showed high incidence of negative response with 15.8% of infants after 1 year, especially athetotic type, 7.1%.

목차 (Table of Contents)

• Ⅰ. 緖論
• Ⅱ. 硏究對象 및 方法
• 1. 對象
• 2. 方法
• Ⅲ. 硏究結果
• A. 正常　幼兒의 原始反對
• B. 腦性麻痺患兒의 原始反射
• Ⅳ. 考按
• Ⅴ. 結論
• 參考文獻