The development of visual- and auditory processing in Rett syndrome: An ERP study

J.E.A. Stauder, E.E.J. Smeets, S.G.M. van Mil, L.M.G. Curfs

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Abstract

Rett syndrome is a neurodevelopmental disorder that occurs almost exclusively in females. It is characterized by a progressive loss of intellectual functioning and motor skills, and the development of stereotypic hand movements, that occur after a period of normal development. Event-related potentials were recorded to a passive auditory- and visual oddball task in 17 females with Rett syndrome aged between 2 and 60 years, and age-matched controls. Overall the participants with Rett syndrome had longer ERP latencies and smaller ERP amplitudes than the Control group suggesting slowed information processing and reduced brain activation. The Rett groups also failed to show typical developmental changes in event-related brain activity and revealed a marked decline in ERP task modulation with increasing age.
Original languageEnglish
Pages (from-to)487-494
JournalBrain & Development
Volume28
Issue number8
DOIs
Publication statusPublished - 1 Jan 2006

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