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Miller, Louisa; McGonigle-Chalmers, Maggie – Journal of Autism and Developmental Disorders, 2014
Perceptual processing in autism is associated with both "strengths" and "weaknesses" but within a literature that varies widely in terms of the assessments used. We report data from 12 children with autism spectrum disorders (ASD) and 12 age and IQ matched neurotypical controls tested on a set of tasks using the same stimuli…
Descriptors: Autism, Pervasive Developmental Disorders, Perceptual Development, Visual Perception
Evers, Kris; de-Wit, Lee; Van der Hallen, Ruth; Haesen, Birgitt; Steyaert, Jean; Noens, Ilse; Wagemans, Johan – Journal of Autism and Developmental Disorders, 2014
This study was inspired by the more locally oriented processing style in autism spectrum disorders (ASD). A modified multiple object tracking (MOT) task was administered to a group of children with and without ASD. Participants not only had to distinguish moving targets from distracters, but they also had to track targets when they were visually…
Descriptors: Cognitive Processes, Autism, Pervasive Developmental Disorders, Eye Movements
Pan, Jinger; Yan, Ming; Laubrock, Jochen; Shu, Hua; Kliegl, Reinhold – Developmental Science, 2013
We measured Chinese dyslexic and control children's eye movements during rapid automatized naming (RAN) with alphanumeric (digits) and symbolic (dice surfaces) stimuli. Both types of stimuli required identical oral responses, controlling for effects associated with speech production. Results showed that naming dice was much slower than naming…
Descriptors: Experiments, Comparative Analysis, Visual Stimuli, Dyslexia
Clifford, Alexandra; Franklin, Anna; Holmes, Amanda; Drivonikou, Vicky G.; Ozgen, Emre; Davies, Ian R. L. – Brain and Cognition, 2012
Category training can induce category effects, whereby color discrimination of stimuli spanning a newly learned category boundary is enhanced relative to equivalently spaced stimuli from within the newly learned category (e.g., categorical perception). However, the underlying mechanisms of these acquired category effects are not fully understood.…
Descriptors: Control Groups, Stimuli, Classification, Correlation
Cleary, Laura; Looney, Kathy; Brady, Nuala; Fitzgerald, Michael – Autism: The International Journal of Research and Practice, 2014
The "body inversion effect" refers to superior recognition of upright than inverted images of the human body and indicates typical configural processing. Previous research by Reed et al. using static images of the human body shows that people with autism fail to demonstrate this effect. Using a novel task in which adults, adolescents…
Descriptors: Visual Perception, Human Body, Adolescents, Autism
O'Riordan, Michelle – Autism: The International Journal of Research and Practice, 2004
Recent studies have suggested that children with autism perform better than matched controls on visual search tasks and that this stems from a superior visual discrimination ability. This study assessed whether these findings generalize from children to adults with autism. Experiments 1 and 2 showed that, like children, adults with autism were…
Descriptors: Visual Discrimination, Control Groups, Autism, Adults
Minini, Loredana; Jeffery, Kathryn J. – Learning & Memory, 2006
Visual discrimination tasks are increasingly used to explore the neurobiology of vision in rodents, but it remains unclear how the animals solve these tasks: Do they process shapes holistically, or by using low-level features such as luminance and angle acuity? In the present study we found that when discriminating triangles from squares, rats did…
Descriptors: Animals, Cognitive Processes, Visual Stimuli, Visual Perception
Squire, Larry R.; Levy, Daniel A.; Shrager, Yael – Learning & Memory, 2005
The perirhinal cortex is known to be important for memory, but there has recently been interest in the possibility that it might also be involved in visual perceptual functions. In four experiments, we assessed visual discrimination ability and visual discrimination learning in severely amnesic patients with large medial temporal lobe lesions that…
Descriptors: Visual Discrimination, Patients, Discrimination Learning, Memory