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[On the daily living and development of infants living in urban and rural regions].

Temporal pattern of daily living behavior and development in infants aged 3-6 yr were compared between urban and rural regions at Fukuoka-prefecture. The present study consisted of questionnaire on behavior of daily living and tests for development in intelligence and motor function. Rural infants got up and went to bed earlier than urban infants. Urban infants with less physical activity were inferior to rural infants in motor skill. It is suggested that manual dexterity and intelligence may be related.