Richards UG Neuro 11 2010

Richards UG Neuro 11 2010 - Jane E. Roberts, Ph.D....

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Unformatted text preview: Jane E. Roberts, Ph.D. University of South Carolina Research Program Autism Fragile X Syndrome Integration of School with Clinical- Community and Experimental Programs Core Symptoms Diverse spectrum Debilitating effects Increased prevalence ASD will encompass autism, Pervasive Developmental Disorder, and Aspergers. 2 Core Symptoms Polygenic Epigenetic mechanisms implied Increased brain size Disorder of Connectivity http://autismspeaks.player.abacast.com/a sdvideoglossary-0.1/player/autismspeaks Retrospective Study & Parental Report: 50% of infants <12 months display symptoms 80% of toddlers <24 months display symptoms Median age at initial diagnosis is 4.0 years Median age of diagnosis is 5.7 years despite development of tools to diagnose at 2 years Extended visual fixation to objects (Zwaigenbaum et al., 2005) Prolonged latency to disengage visual attention (Bryson et al., 2004; Ozonoff et al., 2008; Zwaigenbaum et al., 2005) Marked passivity and decreased activity levels in first year with change to increased negative affect, lower positive affect, and difficulty controlling attention on temperament scales ( Brian et al., 2008; Garon et al., 2009; Zwaigenbaum et al ., 2005) Sensory oriented behaviors including reactivity to visual and auditory stimuli ( Simmons et What are the challenges to early detection of ASD?...
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This note was uploaded on 02/24/2011 for the course PYSC 507 taught by Professor Richards during the Fall '10 term at South Carolina.

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Richards UG Neuro 11 2010 - Jane E. Roberts, Ph.D....

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