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Face processing in children with fragile X syndrome : an ERP feasibility study / Face processing in fragile X syndrome

Faces provide important information necessary for social communication. The current study aimed to evaluate Event-Related Brain Potentials (ERPs) as a method of exploring face processing abilities in fragile X syndrome (FXS), a genetic disorder where social deficits lie at the core of the cognitive phenotype. Neural changes were investigated in three children with FXS across various conditions such as upright vs. inverted faces, intact faces vs. faces with no eyes as well as faces vs. cars. Relative to chronological age matched controls, children with FXS displayed greater N170 amplitudes and shorter latency peaks across conditions. In addition, the FXS group showed right hemispheric specialization for both face and non-face stimuli. Heightened electrophysiological responses in FXS are discussed in the context of reported hyper-sensitivity and arousal.

Identiferoai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.98579
Date January 2005
CreatorsRoy, Sylvain.
PublisherMcGill University
Source SetsLibrary and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada
LanguageEnglish
Detected LanguageEnglish
TypeElectronic Thesis or Dissertation
Formatapplication/pdf
CoverageMaster of Arts (Department of Educational and Counselling Psychology.)
Rights© Sylvain Roy, 2005
Relationalephsysno: 002493898, proquestno: AAIMR24917, Theses scanned by UMI/ProQuest.

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