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Differentiation of Types of Visual Agnosia Using EEG [PDF]

open access: yesVision, 2018
Visual recognition deficits are the hallmark symptom of visual agnosia, a neuropsychological disorder typically associated with damage to the visual system.
Sarah M. Haigh   +3 more
doaj   +5 more sources

Associative Visual Agnosia: A Case Study [PDF]

open access: yesBehavioural Neurology, 2008
We report a case of massive associative visual agnosia. In the light of current theories of identification and semantic knowledge organization, a deficit involving both levels of structural description system and visual semantics must be assumed to ...
A. Charnallet   +3 more
doaj   +4 more sources

Acquired visual agnosia as an uncommon presentation of epileptic encephalopathy in a 6-year-old boy with CSWS [PDF]

open access: yesEpilepsy & Behavior Reports, 2021
Background: Acquired visual agnosia in the context of continuous spikes and waves during slow sleep (CSWS) is rarely described. We present a case of an almost 7-year-old boy who lost his ability to name pictures and recognize familiar faces.
Loretta van Iterson   +5 more
doaj   +2 more sources

Visual Agnosia

open access: yesCurrent Neurology and Neuroscience Reports, 2003
As was originally proposed by Lissauer, visual recognition may break down either at an apperceptive or at an associative level. At an apperceptive level, finer grain distinctions may be made; the authors distinguished here between disorders of shape recognition and perceptual integration.
Iftah Biran
exaly   +8 more sources

Visual form-processing deficits: A global clinical classification

open access: yesNeurología (English Edition), 2014
Introduction: Patients who have difficulties recognising visual form stimuli are usually labelled as having visual agnosia. However, recent studies let us identify different clinical manifestations corresponding to discrete diagnostic entities which ...
J. Unzueta-Arce   +5 more
doaj   +2 more sources

Visual agnosia

open access: yesIndian Journal of Ophthalmology, 1972
Raizada V, Raizada I
doaj   +2 more sources

Clinical features and imaging biomarkers of posterior cortical atrophy

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2023
Objective To summarize the clinical and imaging features of patients with posterior cortical atrophy (PCA). Methods and Results Five patients with PCA admitted in West China Hospital, Sichuan University from April to June 2021 were included.
Li⁃ping YAO   +4 more
doaj   +1 more source

Cerebral visual loss

open access: yesAnnals of Indian Academy of Neurology, 2022
Cerebral visual disorders include a range of common and rare deficits. They can be divided into effects on low-, intermediate-, and high-level forms of visual processing.
Jason J S. Barton
doaj   +1 more source

Alzheimer Disease: Controversies in Basic Science Research, Different Theories, and Reasons for Failed Trials

open access: yesBiomedicines, 2021
Dementia comprises a collection of cognitive and sensory symptoms, including memory loss, communication difficulties, difficulty in planning and problem solving, disorientation and confusion, compromised olfaction, loss of visual perception, agnosia; and
Farid Rahimi
doaj   +1 more source

Isolated metamorphopsia: a rare presentation of splenial infarction of the corpus callosum [PDF]

open access: yesRomanian Journal of Neurology, 2018
Metamorphopsia is the visual misperception of the shape of objects. Retinal diseases, especially those affecting the macula, are responsible for the majority of cases. However, it can also be seen during migraine attacks, epileptic seizures and damage to
Miruna Florentina Ates   +4 more
doaj   +1 more source

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