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- Title
Oblique Orientation Discrimination Thresholds Are Superior in Those with a High Level of Autistic Traits.
- Authors
Dickinson, Abigail; Jones, Myles; Milne, Elizabeth
- Abstract
Enhanced low-level perception, although present in individuals with autism, is not seen in individuals with high, but non-clinical, levels of autistic traits (Brock et al.in Percept Lond 40(6):739. doi:, 2011). This is surprising, as many of the higher-level visual differences found in autism have been shown to correlate with autistic traits in non-clinical samples. Here we measure vertical-oblique and, more difficult, oblique-oblique orientation discrimination thresholds in a non-clinical sample. As predicted, oblique-oblique thresholds provided a more sensitive test of orientation discrimination, and were negatively related to autistic traits (N = 94, r = −.356, p < .0001). We conclude that individual differences in orientation discrimination and autistic traits are related, and suggest that both of these factors could be mediated by increased levels of the inhibitory neurotransmitter GABA.
- Subjects
VISION testing; VISION testing equipment; AUTISM; COMMUNITIES; STATISTICAL correlation; GABA; QUESTIONNAIRES; SYMPTOMS
- Publication
Journal of Autism & Developmental Disorders, 2014, Vol 44, Issue 11, p2844
- ISSN
0162-3257
- Publication type
Article
- DOI
10.1007/s10803-014-2147-1