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Keehn, Brandon; Westerfield, Marissa; Townsend, Jeanne – Journal of Autism and Developmental Disorders, 2019
This study investigates how task-irrelevant auditory information is processed in children with autism spectrum disorder (ASD). Eighteen children with ASD and 19 age- and IQ-matched typically developing (TD) children were presented with semantically-congruent and incongruent picture-sound pairs, and in separate tasks were instructed to attend to…
Descriptors: Autism, Pervasive Developmental Disorders, Children, Visual Stimuli
Keehn, Brandon; Joseph, Robert M. – Journal of Autism and Developmental Disorders, 2016
We used eye-tracking to investigate the roles of enhanced discrimination and peripheral selection in superior visual search in autism spectrum disorder (ASD). Children with ASD were faster at visual search than their typically developing peers. However, group differences in performance and eye-movements did not vary with the level of difficulty of…
Descriptors: Autism, Eye Movements, Visual Perception, Visual Discrimination
Stewart, Claire R.; Sanchez, Sandra S.; Grenesko, Emily L.; Brown, Christine M.; Chen, Colleen P.; Keehn, Brandon; Velasquez, Francisco; Lincoln, Alan J.; Müller, Ralph-Axel – Journal of Autism and Developmental Disorders, 2016
Atypical sensory responses are common in autism spectrum disorder (ASD). While evidence suggests impaired auditory-visual integration for verbal information, findings for nonverbal stimuli are inconsistent. We tested for sensory symptoms in children with ASD (using the Adolescent/Adult Sensory Profile) and examined unisensory and bisensory…
Descriptors: Autism, Pervasive Developmental Disorders, Perceptual Impairments, Symptoms (Individual Disorders)
McPartland, James C.; Webb, Sara Jane; Keehn, Brandon; Dawson, Geraldine – Journal of Autism and Developmental Disorders, 2011
This study used eye-tracking to examine visual attention to faces and objects in adolescents with autism spectrum disorder (ASD) and typical peers. Point of gaze was recorded during passive viewing of images of human faces, inverted human faces, monkey faces, three-dimensional curvilinear objects, and two-dimensional geometric patterns.…
Descriptors: Autism, Attention, Visual Perception, Eye Movements
Keehn, Brandon; Brenner, Laurie A.; Ramos, Aurora I.; Lincoln, Alan J.; Marshall, Sandra P.; Muller, Ralph-Axel – Journal of Autism and Developmental Disorders, 2009
The present study examined fixation frequency and duration during an Embedded Figures Test (EFT) in an effort to better understand the attentional and perceptual processes by which individuals with autism spectrum disorder (ASD) achieve accelerated EFT performance. In particular, we aimed to elucidate differences in the patterns of eye-movement in…
Descriptors: Reaction Time, Autism, Eye Movements, Pervasive Developmental Disorders