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Acta Paediatr. 1996 Apr;85(4):425-9.

Sustained attention problems in children with early treated congenital hypothyroidism.

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Laboratory of Experimental Clinical Psychology, University of Groningen, The Netherlands.


Sustained attention was studied in 48 children with early treated congenital hypothyroidism and 35 healthy controls, using a computer-paced and a self-paced continuous performance task. The performance of the patients, particularly those in the low T4 group (38 patients with T4 levels < 50 nmol/l at neonatal screening), declined in the final stage of the computer-paced task, suggesting a problem in remaining attentive over time. The performance of all children declined in the first and improved in the final stage of the self-paced task. This pattern was most pronounced in the low T4 group, reflecting greater variability in their task performance over time, again indicating a problem in sustaining attention. No correlation was found between onset of treatment and sustained attention. The small size of the intermediate T4 group (10 patients with T4 levels > or = 50 nmol/l at neonatal screening) made the results more difficult to interpret and may have concealed a problem with sustained attention in this group.

[Indexed for MEDLINE]

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