Developmental trajectories and correlates of sensory processing in young boys with fragile X syndrome
Baranek, GT., Roberts, JE., David, FJ., Sideris, J., Mirrett, PL., Hatton, DD., & Bailey, D. (2008). Developmental trajectories and correlates of sensory processing in young boys with fragile X syndrome. Physical & Occupational Therapy in Pediatrics, 28(1), 79-98.
BACKGROUND AND PURPOSE: No longitudinal study on sensory processing in children with fragile X syndrome (FXS) exists. This study examined developmental trajectories and correlates of sensory processing from infancy through preschool years in 13 boys with FXS. METHOD: Participants were assessed using observational and parent-report measures 2-6 times between 9 and 54 months of age. RESULTS: Over time, an increasing proportion of boys displayed sensory processing that differed significantly from test norms. Observational measures were more sensitive than parent-reports early in infancy. Age and developmental quotient significantly predicted levels of hyporesponsiveness; there was a trend for hyperresponsiveness to increase with age. Baseline physiological and biological measures were not predictive. CONCLUSIONS: Sensory processing problems are observable early and grow increasingly problematic from infancy through the preschool ages. Early identification and intervention may attenuate long-term difficulties for children with FXS