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Reliability of eye tracking and pupillometry measures in individuals with fragile X syndrome.

  • Author(s): Farzin, Faraz
  • Scaggs, Felicia
  • Hervey, Crystal
  • Berry-Kravis, Elizabeth
  • Hessl, David
  • et al.
Abstract

Recent insight into the underlying molecular and cellular mechanisms of fragile X syndrome (FXS) has led to the proposal and development of new pharmaceutical treatment strategies, and the initiation of clinical trials aimed at correcting core symptoms of the developmental disorder. Consequently, there is an urgent and critical need for outcome measures that are valid for quantifying specific symptoms of FXS and that are consistent across time. We used eye tracking to evaluate test-retest reliability of gaze and pupillometry measures in individuals with FXS and we demonstrate that these measures are viable options for assessing treatment-specific outcomes related to a core behavioral feature of the disorder.

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