Perception and action in 'visual form agnosia'
Brain, ISSN: 0006-8950, Vol: 114, Issue: 1, Page: 405-428
1991
- 471Citations
- 318Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations471
- Citation Indexes471
- 471
- CrossRef312
- Academic Citation Index (ACI) - airiti1
- Captures318
- Readers318
- 318
Article Description
A single case study of a patient with 'visual form agnosia' is presented. A severe visual recognition deficit was accompanied by impairments in discriminating shape, reflectance, and orientation, although visual acuity and colour vision, along with tactile recognition and intelligence, were largely preserved. Neuropsychological and behavioural investigations have indicated that the patient is able to utilize visual pattern information surprisingly well for the control of hand movements during reaching, and can even read many whole words, despite being unable to make simple discriminative judgements of shape or orientation. She seems to have no awareness of shape primitives through Gestalt grouping by similarity, continuity or symmetry. It is proposed that many of these perceptual disorders might be the combined result of (1) a selective loss of the cortical elaboration of the magnocellular visual processing stream, and (2) a selective output disconnection from a central processor of visual boundaries and shape primitives in the occipital cortex. © 1991 Oxford University Press.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0026061978&origin=inward; http://dx.doi.org/10.1093/brain/114.1.405; http://www.ncbi.nlm.nih.gov/pubmed/2004249; https://academic.oup.com/brain/article-lookup/doi/10.1093/brain/114.1.405; https://dx.doi.org/10.1093/brain/114.1.405; https://academic.oup.com/brain/article-abstract/114/1/405/271027?redirectedFrom=fulltext
Oxford University Press (OUP)
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