Neural Basis of Visual Attentional Orienting in Childhood Autism Spectrum Disorders
| Autor: | William D. Gaillard, Chandan J. Vaidya, Megan Norr, Lauren Kenworthy, John F. Strang, Eric R. Murphy |
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| Rok vydání: | 2016 |
| Předmět: |
Male
0301 basic medicine medicine.medical_specialty Visual perception genetic structures Autism Spectrum Disorder Attentional bias Audiology behavioral disciplines and activities Article Attentional Bias 03 medical and health sciences 0302 clinical medicine Salience (neuroscience) Orientation Task Performance and Analysis Reaction Time Developmental and Educational Psychology medicine Humans Child medicine.diagnostic_test Attentional control medicine.disease Magnetic Resonance Imaging 030104 developmental biology Autism spectrum disorder Case-Control Studies Task analysis Autism Female Psychology Functional magnetic resonance imaging Photic Stimulation 030217 neurology & neurosurgery Cognitive psychology |
| Zdroj: | Journal of Autism and Developmental Disorders. 47:58-67 |
| ISSN: | 1573-3432 0162-3257 |
| DOI: | 10.1007/s10803-016-2928-9 |
| Popis: | We examined spontaneous attention orienting to visual salience in stimuli without social significance using a modified Dot-Probe task during functional magnetic resonance imaging in high-functioning preadolescent children with Autism Spectrum Disorder (ASD) and age- and IQ-matched control children. While the magnitude of attentional bias (faster response to probes in the location of solid color patch) to visually salient stimuli was similar in the groups, activation differences in frontal and temporoparietal regions suggested hyper-sensitivity to visual salience or to sameness in ASD children. Further, activation in a subset of those regions was associated with symptoms of restricted and repetitive behavior. Thus, atypicalities in response to visual properties of stimuli may drive attentional orienting problems associated with ASD. |
| Databáze: | OpenAIRE |
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