Object Permanence and the Relationship to Sitting Development in Infants With Motor Delays. Issue 3 (10th July 2022)

• Record Type: Journal Article
• Authors: An, Mihee; Marcinowski, Emily C.; Hsu, Lin-Ya; Stankus, Jaclynn; Jancart, Karl L.; Lobo, Michele A.; Dusing, Stacey C.; McCoy, Sarah W.; Bovaird, James A.; Willett, Sandra; Harbourne, Regina T.
• Is Part Of: Pediatric physical therapy. Volume 34:Issue 3(2022)
• Page Start: 309
• Page End: 316
• Publication Date: 2022-07-10
• Subjects: motor delay -- object permanence -- reliability -- sitting -- validity; Physical therapy for children -- Periodicals; 615.820832
• DOI: 10.1097/PEP.0000000000000909
• Languages: English
• ISSNs: 0898-5669

Abstract

Abstract : This study examines object permanence development in infants with motor delays compared to infants with typical development and in relation to sitting skill. Abstract : Purpose: This study examines object permanence development in infants with motor delays (MD) compared with infants with typical development (TD) and in relation to sitting skill. Methods: Fifty-six infants with MD (mean age = 10 months) and 36 with TD (mean age = 5.7 months) were assessed at baseline and then at 1.5, 3, and 6 months postbaseline. A scale was developed to measure object permanence (Object Permanence Scale [OPS]), and the Gross Motor Function Measure sitting subsection (GMFM-SS), and the Bayley Scales of Infant and Toddler Development, 3rd Edition (Bayley-III) were administered. Results: Interrater reliability of the OPS was excellent and correlation between the OPS and Bayley-III cognitive scores was moderately positive. Compared with TD, infants with MD were delayed in development of object permanence but demonstrated increased understanding over time and as sitting skills improved. Conclusion: In children with MD, object permanence, as quantified by the OPS, emerges in conjunction with sitting skill.