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| Titel: |
A tale of two agnosias: Distinctions between form and integrative agnosia |
| Auteur: |
Riddoch, M. Jane Humphreys, Glyn W. Akhtar, Nabeela Allen, Harriet Bracewell, R. Martyn Schofield, Andrew J. |
| Verschenen in: |
Cognitive neuropsychology |
| Paginering: | Jaargang 25 (2008) nr. 1 pagina's 56-92 |
| Jaar: |
2008-02 |
| Inhoud: |
The performance of two patients with visual agnosia was compared across a number of tests examining visual processing. The patients were distinguished by having dorsal and medial ventral extrastriate lesions. While inanimate objects were disadvantaged for the patient with a dorsal extrastriate lesion, animate items are disadvantaged for the patient with the medial ventral extrastriate lesion. The patients also showed contrasting patterns of performance on the Navon Test: The patient with a dorsal extrastriate lesion demonstrated a local bias while the patient with a medial ventral extrastriate lesion had a global bias. We propose that the dorsal and medial ventral visual pathways may be characterized at an extrastriate level by differences in local relative to more global visual processing and that this can link to visually based category-specific deficits in processing. |
| Uitgever: |
Psychology Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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