Abstract
Cognitive development of early treated PKU children (132) was investigated by intelligence tests, tests for visual perception, motor and language development. Deviations from test norms occurred at 5 years of age concerning performance IQ, mathematical thinking, and visual perception. With the exception of mathematical thinking, “normal” results were obtained at the age of 6 years. Correlation with levels of plasma Phe revealed a relation between qualitiy of dietary control and performance IQ. Results are discussed in light of methodological aspects and with respect to treatment consequence.
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On behalf of a group of psychologists cooperating for the PKU study: D. Awiszus, S. Börner, B. Granitzny, R. Matthaei, A. Stachiw, I. Unger, J. Weglage, and H. Weyhretet
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Michel, U., Schmidt, E. & Batzler, U. Results of psychological testing of patients aged 3–6 years. Eur J Pediatr 149 (Suppl 1), 34–38 (1990). https://doi.org/10.1007/BF02126297
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DOI: https://doi.org/10.1007/BF02126297