Project 1. Auditory and Visual Sensory Processing The goal of the Program Project is to study hierarchical leyels of neural processing and cognition in order to identify the neural and functional underpinnings of cognitive deficits in children (ages 7-10) with several neurodevelopmental disorders - Specific Language Impairment (LI), Early Unilateral Focal Brain Lesions (FL), High Functioning Autism (HFA), and Williams Syndrome (WS). Within this framework, the role of Project 1 is to systematically characterize the neural functioning of the sensory/perceptual mechanisms across two modalities, auditory and visual, including three core processing aspects (time, space, features) and three processing levels (bottom-up driven, cortical sensory, top-down driven) in each modality. Our three overarching goals are (1) to determine the unique population landscapes of the sensory/perceptual deficits across the modalities, levels, and aspects;(2) map these impairment profiles onto the hierarchy of higher cognitive functions of attention, language, and social skills, and (3) onto the neuro-anantomic and white matter connectivity measures. Over the past 15 years of research we have identified a number of sensory problems in these clinical populations, however the extent of these abnormalities across the modalities and processing levels, or their impact onto the cognitive functions remains unclear. Exactly these questions will be addressed by the carefully matched experimental measures proposed herein. Corresponding to the three overarching goals, three sets of competing or complimentary hypotheses will be tested, addressing alternative mechanisms of neurodevelopmental damage and compensatory plasticity, logistics of hierarchical information processing, and neural structure-function relationships. Behavioral tasks, continuous electrophysiological brain activity and event-related brain potentials will be assessed using modern data acquisition and analytic approaches. These measures will sample the very foundations of human cognition. Their deficits will be traced across processing aspects, leyels, modalities, to the higherlevel cognitive impairment profiles, and mapped onto the corresponding brain volumetric (MRI) and white matter integrity measures (DTI). In sum, this approach will yield a systematic and integrated view into the sensory/perceptual functioning and its neural bases in the Center clinical populations. Through the integration across the Projects, we will be able to trace the ramifications of these abnormalities onto the higher-order cognitive disability profiles. This will provide new and fuller insights into the neuro-pathpgenic mechanisms of these developmental disorders that may lead to the earlier and more specific diagnostic and intervention strategies.

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Specialized Center (P50)
Project #
5P50NS022343-25
Application #
8376076
Study Section
Special Emphasis Panel (ZNS1-SRB-R)
Project Start
Project End
Budget Start
2012-07-01
Budget End
2013-06-30
Support Year
25
Fiscal Year
2012
Total Cost
$138,867
Indirect Cost
$47,248
Name
University of California San Diego
Department
Type
DUNS #
804355790
City
La Jolla
State
CA
Country
United States
Zip Code
92093
Ng, Rowena; Brown, Timothy T; Erhart, Matthew et al. (2016) Morphological differences in the mirror neuron system in Williams syndrome. Soc Neurosci 11:277-88
Ng, Rowena; Brown, Timothy T; Järvinen, Anna M et al. (2016) Structural integrity of the limbic-prefrontal connection: Neuropathological correlates of anxiety in Williams syndrome. Soc Neurosci 11:187-92
Webb, Sara Jane; Bernier, Raphael; Henderson, Heather A et al. (2015) Guidelines and best practices for electrophysiological data collection, analysis and reporting in autism. J Autism Dev Disord 45:425-43
Yousefian, Omid; Ballantyne, Angela O; Doo, Alex et al. (2015) Clock drawing in children with perinatal stroke. Pediatr Neurol 52:592-8
Lai, Philip T; Reilly, Judy S (2015) Language and affective facial expression in children with perinatal stroke. Brain Lang 147:85-95
Polse, Lara R; Reilly, Judy S (2015) Orthographic and semantic processing in young readers. J Res Read 38:47-72
Paul, Brianna; Appelbaum, Mark; Carapetian, Stephanie et al. (2014) Face and location processing in children with early unilateral brain injury. Brain Cogn 88:6-13
Miller, M; Chukoskie, L; Zinni, M et al. (2014) Dyspraxia, motor function and visual-motor integration in autism. Behav Brain Res 269:95-102
White, Nathan S; McDonald, Carrie; McDonald, Carrie R et al. (2014) Diffusion-weighted imaging in cancer: physical foundations and applications of restriction spectrum imaging. Cancer Res 74:4638-52
Ng, Rowena; Järvinen, Anna; Bellugi, Ursula (2014) Toward a deeper characterization of the social phenotype of Williams syndrome: The association between personality and social drive. Res Dev Disabil 35:1838-49

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