Disordered visual processing and oscillatory brain activity in autism and Williams Syndrome
| Autor: | Annette Karmiloff-Smith, Michelle de Haan, Mark H. Johnson, Gergely Csibra, Michael W. Spratling, Sarah Grice, Hanife Halit |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Adult
Williams Syndrome Visual perception Brain activity and meditation Field Dependence-Independence Neuroconstructivism Electroencephalography Visual processing Biological Clocks medicine Humans Autistic Disorder Evoked Potentials medicine.diagnostic_test General Neuroscience Brain Signal Processing Computer-Assisted Cognition medicine.disease Visual Perception Autism Williams syndrome Psychology Neuroscience Photic Stimulation |
| Zdroj: | Neuroreport. 12:2697-2700 |
| ISSN: | 0959-4965 |
| DOI: | 10.1097/00001756-200108280-00021 |
| Popis: | Two developmental disorders, autism and Williams syndrome, are both commonly described as having difficulties in integrating perceptual features, i.e. binding spatially separate elements into a whole. It is already known that healthy adults and infants display electroencephalographic (EEG) gamma-band bursts (around 40 Hz) when the brain is required to achieve such binding. Here we explore gamma-band EEG in autism and Williams Syndrome and demonstrate differential abnormalities in the two phenotypes. We show that despite putative processing similarities at the cognitive level, binding in Williams syndrome and autism can be dissociated at the neurophysiological level by different abnormalities in underlying brain oscillatory activity. Our study is the first to identify that binding-related gamma EEG can be disordered in humans. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|