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Behavioral and Neural Variability in Autism Spectrum Disorder

2015 Meixner Translational Postdoctoral Fellowship

University of Washington
Seattle, Washington
United States


In addition to the classical core features of Autism Spectrum Disorder (ASD), there is also a high prevalence of deficits in sensory processing. Without a better understanding of the underlying mechanisms of these deficits, and knowledge of how sensory function maps on to domains of core impairments like communication, treatment strategies that aim to improve sensory processing may ultimately fall short. This project will explore a potential mechanism for sensory processing deficits: increases in neural (and its associated behavioral) variability. In ASD, individual performance across a range of sensory and cognitive tasks is impaired and also is more inconsistent than for “neurotypical” populations. In the context of sensory processing, if the brain’s response to a particular stimulus is highly variable, it will be increasingly difficult to differentiate stimulus-evoked patterns of neural activity, leading to difficulty in processing sensory cues. This project seeks to better characterize the basic mechanisms of sensory processing deficits in children with ASD from the perspective of sensory variability (Aim 1), and then to use this information in an effort to reduce variability and thus increase sensory acuity with a perceptual training paradigm (Aim 2). Because of the strong links between sensory processing and communication skills, the ultimate goal of this research is to provide a simple and effective tool for improving these abilities in children with ASD.

Disseminations
TypeDateTitle/Link
Publication10/09/2015Behavioral, perceptual, and neural alterations in sensory and multisensory function in autism spectrum disorder
Publication10/09/2015Behavioral, perceptual, and neural alterations in sensory and multisensory function in autism spectrum disorder
Blog06/21/2016How does sensory processing affect communication in kids with autism?
Blog06/21/2016How does sensory processing affect communication in kids with autism?
Publication05/18/2016Commentary: Visual Fixation in Human Newborns Correlates with Extensive White Matter Networks and Predicts Long-Term Neurocognitive Development.
Publication05/18/2016Commentary: Visual Fixation in Human Newborns Correlates with Extensive White Matter Networks and Predicts Long-Term Neurocognitive Development.
Publication04/27/2017Links between temporal acuity and multisensory integration across life span.
Publication04/27/2017Links between temporal acuity and multisensory integration across life span.
Publication03/24/2017Multisensory speech perception in autism spectrum disorder: From phoneme to whole-word perception.
Publication03/24/2017Multisensory speech perception in autism spectrum disorder: From phoneme to whole-word perception.
Publication01/01/2018Perceptual training enhances temporal acuity for multisensory speech
Publication01/01/2018Perceptual training enhances temporal acuity for multisensory speech

Status:

Completed

Investigator:

Baum Miller, Sarah

Mentor:

Lee, Adrian

Grant Term:

3 years

Award Type:

Meixner Translational Postdoctoral Fellowship

Grant Amount:

$173,500.00

Institution Website:

http://www.washington.edu

Grant ID:

9717