Savant characteristics in a child with developmental delay and deletion in the short arm of chromosome 20

Developmental Medicine and Child Neurology
J RovetA Feigenbaum

Abstract

The development outcome of a four-year-old boy with a deletion of the short arm of chromosome 20 is described. Despite a number of early medical problems, including infantile hypoglycemic convulsions secondary to growth hormone deficiency and delayed motor and language development, he has been reading (self-taught) since 2.5 years and currently has computer proficiency, and exceptional memory for maps and spatial locations, an extremely rich and active fantasy life, good diction, and an extensive spoken vocabulary. Neuropsychological evaluation revealed low-average intelligence with normal language, memory and attention functions, and impaired visuomotor and graphomotor ability and motor skills. He showed extremely advanced decoding and reading comprehension skills while mathematics, spelling and general knowledge abilities were average.

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Citations

May 10, 2013·American Journal of Medical Genetics. Part a·Manal Dayem-QuereHouda Karmous-Benailly
Apr 2, 2010·American Journal of Medical Genetics. Part a·Anna K McGillDavid D Weaver

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