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The longitudinal study on the developmental change of object permanence and its relationship to exploration behavior, cognitive ability and environmental variable

  • THE KOREAN JOURNAL OF DEVELOPMENTAL PSYCHOLOGY
  • 2004, 17(4), pp.21-36
  • Publisher : The Korean Society For Developmental Psychology
  • Research Area : Social Science > Psychological Science

Hyunran Sung 1 배기조 2

1대구가톨릭대학교
2서울대학교

Accredited

ABSTRACT

In this study, the developmental change of object permanence and and its correlation with exploration behavior, cognitive ability perceived by mothers and environmental variables, were investigated through longitudinal design. Subjects were 412 infants and their mothers. Infants were observed when they were 6, 8, 9, 10, and 11-month-old in their home environment. The object permanence by partial occlusion tasks developed progressively from 6-month-old infants to 9-month-old infants. There was not any progression from 9-month-old infants. The object permanence by complete occlusion tasks developed progressively from 8-month-old infants to 10-month-old infants and there was not significant progression from 10-month-old infants. However, The scores from partial occlusion tasks were higher than the scores from complete occlusion tasks in 8, 9, 10-month-old infants and there was no difference between them in 11-month-old infants. According to these results, we can conclude that the object permanence without displacement is completed by 11-month-old infants. The correlation between the scores of object permanence for 6- and 8-month-old and subsequent scores is lower than between the scores of objects permanence for 9-, 10-, and 11-month-old infants. From these results, it can be interpreted that the reliability of object permanence is acquired when infants are 9-month-old. The total scores of object permanence is correlated positively with exploration behavior and cognitive ability, and there is also positive correlation between exploration behavior and cognitive ability. There were scarce positive correlations between objective permanence and environmental variables and also between exploration behavior and environmental variables. However, there was positive correlation between cognitive ability and environmental variables.

Citation status

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This paper was written with support from the National Research Foundation of Korea.