Object permanence and the development of attention capacity in preterm and term infants: an eye-tracking studyopen access
- Authors
- Ryu, Hokyoung; Han, Garam; Choi, Jaeran; Park, Hyun-Kyung; Kim, Mi Jung; Ahn, Dong-Hyun; Lee, Hyun Ju
- Issue Date
- Oct-2017
- Publisher
- BIOMED CENTRAL LTD
- Keywords
- Neurodevelopmental outcome; Infant; Premature; Cognition; Eye-tracking
- Citation
- ITALIAN JOURNAL OF PEDIATRICS, v.43, pp.1 - 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- ITALIAN JOURNAL OF PEDIATRICS
- Volume
- 43
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151573
- DOI
- 10.1186/s13052-017-0408-2
- ISSN
- 1720-8424
- Abstract
- Background: The relationship between premature birth and early cognitive function as measured by eye-tracking data remains unexplored. The aim of this study was to determine the effect of prematurity on the development of object permanence and attention capacity using eye-tracking measures. Methods: We prospectively studied very low birth weight (VLBW < 1500 g) preterm infants who were admitted to the Neonatal Intensive Care Unit of Hanyang University College of Medicine, Seoul, Korea and visited a follow-up clinic. Using eye-tracking measures, object permanence was assessed in 15 VLBW preterm and 10 term infants at a corrected age of 6-10 months, and attention capacity was measured in 26 VLBW preterm and 18 term children who were age-matched for the corrected age of 6-10 or18 months. Results: No differences were found in chronologic age (corrected age for prematurity), sex, or maternal education between the study groups. The VLBW preterm infants had lower scores than term infants on eye-tracking measures of object permanence than the term infants did at 6-10 months (P = 0.042). The VLBW preterm infants had a shorter referential gaze than the term infants did at 6-10 months (P = 0.038); moreover, the length of referential gaze of the VLBW preterm infants was significantly lower at 6-10 months than at 18 months (P = 0.047), possibly indicating a delayed trajectory of attention development. Conclusion: The VLBW preterm infants have different attention capacities and object permanence developmental markers than term infants at the corrected age of 6-10 months.
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