Cognitive and behavioral neurology : official journal of the Society for Behavioral and Cognitive Neurology · 2010
A cortically blind patient with preserved visual imagery.
Клинический случайСтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Zago Stefano, Corti Stefania, Bersano Anna, Baron Pierluigi, Conti Giancarlo, Ballabio Elena, Lanfranconi Silvia, Cinnante Claudia, Costa Antonella, Cappellari Alberto, Bresolin Nereo
Аннотация
BACKGROUND/OBJECTIVE: The loss or preservation of visual imagery in patients with cortical blindness may be helpful in resolving the controversial roles assigned by some researchers to the early visual cortex during the process of visual imagery.
PATIENT AND METHODS: Here we report a patient with complete permanent cortical blindness coupled with denial of the blindness (Anton syndrome) as a result of bilateral occipital infarction.
RESULTS: Interestingly, the patient's ability to visualize objects, color, and spatial imagery was preserved, although cerebral computed tomography, magnetic resonance imaging, and positron emission tomography scans detected what was likely complete bilateral damage to the primary visual cortex.
CONCLUSIONS: Our findings may support the hypothesis that the primary visual cortex, in which retinal spatial geometry is preserved, is not critical for visual imagery.
PATIENT AND METHODS: Here we report a patient with complete permanent cortical blindness coupled with denial of the blindness (Anton syndrome) as a result of bilateral occipital infarction.
RESULTS: Interestingly, the patient's ability to visualize objects, color, and spatial imagery was preserved, although cerebral computed tomography, magnetic resonance imaging, and positron emission tomography scans detected what was likely complete bilateral damage to the primary visual cortex.
CONCLUSIONS: Our findings may support the hypothesis that the primary visual cortex, in which retinal spatial geometry is preserved, is not critical for visual imagery.