Precursors of executive function in infants with sickle cell anemia.

Abstract:

:Executive dysfunction occurs in sickle cell anemia, but there are few early data. Infants with sickle cell anemia (n = 14) and controls (n = 14) performed the "A-not-B" and Object Retrieval search tasks, measuring precursors of executive function at 9 and 12 months. Significant group differences were not found. However, for the A-not-B task, 7 of 11 sickle cell anemia infants scored in the lower 2 performance categories at 9 months, but only 1 at 12 months (P = .024); controls obtained scores at 12 months that were statistically comparable to the scores they had already obtained at 9 months. On the Object Retrieval task, 9- and 12-month controls showed comparable scores, whereas infants with sickle cell anemia continued to improve (P = .027); at 9 months, those with lower hemoglobin oxygen saturation passed fewer trials (R s = 0.670, P = .024) and took longer to obtain the toy (R s = -0.664, P = .013). Subtle delays in acquiring developmental skills may underlie abnormal executive function in childhood.

journal_name

J Child Neurol

authors

Hogan AM,Telfer PT,Kirkham FJ,de Haan M

doi

10.1177/0883073812453495

subject

Has Abstract

pub_date

2013-10-01 00:00:00

pages

1197-202

issue

10

eissn

0883-0738

issn

1708-8283

pii

0883073812453495

journal_volume

28

pub_type

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