scholarly journals Visual Agnosia

2020 ◽  
Author(s):  
Keyword(s):  
Visual Agnosia

Ecologically valid stimuli in eye-tracking study of visual agnosia

2018 ◽  
Vol 131 ◽  
pp. S172-S173
Author(s):  
K. Vigasina ◽  
M. Kaverina ◽  
G. Danilov ◽  
O. Krotkova
Keyword(s):  
Eye Tracking ◽  
Visual Agnosia

Visual agnosia and focal brain injury

2017 ◽  
Vol 173 (7-8) ◽  
pp. 451-460 ◽  
Author(s):  
O. Martinaud
Keyword(s):  
Brain Injury ◽  
Visual Agnosia ◽  
Focal Brain Injury

The neuropsychological and neuroradiological correlates of slowly progressive visual agnosia

2009 ◽  
Vol 30 (2) ◽  
pp. 123-131 ◽  
Author(s):  
Anna Rita Giovagnoli ◽  
Anna Aresi ◽  
Fabiola Reati ◽  
Alice Riva ◽  
Clara Gobbo ◽  
...  
Keyword(s):  
Visual Agnosia

When is a view unusual? A single case study of orientation-dependent visual agnosia

1996 ◽  
Vol 40 (5-6) ◽  
pp. 497-502 ◽  
Author(s):  
Oliver H. Turnbull ◽  
Rosaleen A. McCarthy
Keyword(s):  
Single Case ◽  
Single Case Study ◽  
Visual Agnosia

scholarly journals Agnosia integrativa causada por una epilepsia focal occipital izquierda: estudio de caso

Diversitas ◽  
2011 ◽  
Vol 7 (2) ◽  
pp. 351
Author(s):  
Óscar Mauricio Aguilar Mejía ◽  
Beatriz Ramírez Bermejo ◽  
Luis Manuel Silva Martín
Keyword(s):  
Visual Agnosia ◽  
Palabras Clave ◽  
Estudio De Caso

<p style="text-align: justify;"><strong>Resumen </strong><br /> La agnosia integrativa es un tipo de agnosia visual asociada a lesiones occipitales bilaterales que se caracteriza por la incapacidad para identificar estímulos en fondos complejos, especialmente, cuando se trata de formas superpuestas o entrelazadas. Existen dificultades para codificar y agrupar el todo a partir de las partes del estímulo. Se presenta un caso de una paciente de 14 años, con una agnosia integrativa como consecuencia de una epilepsia focal sintomática refractaria, con un foco epileptogénico occipital izquierdo. Se plantean las características clínicas de la paciente y se hace un análisis de sus procesos de reconocimiento visual discutidos a partir de los diferentes modelos teóricos que tratan de explicar la percepción visual.</p><p style="text-align: justify;"><strong>Palabras clave:</strong> agnosia visual, agnosia integrativa, epilepsia.</p>

scholarly journals Visual Object Agnosia in Acute Ischemic Stroke: A First Neuroimaging Biomarker

Doctor Ru ◽  
2021 ◽  
Vol 20 (9) ◽  
pp. 6-10
Author(s):  
G.V. Tikhomirov ◽  
◽  
V.N. Grigorieva ◽  
A.S. Surkova ◽  
◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Visual Object ◽  
Visual Agnosia ◽  
Study Objective ◽  
Study Materials ◽  
Stroke Study ◽  
Study Results ◽  
Potential Use ◽  
Ct And Mri

Study Objective: To demonstrate the potential use of peripheral sulcus occipitotemporalis involvement as a first neuroimaging biomarker of visual object agnosia in acute ischemic stroke. Study Design: Retrospective study. Materials and Methods. We have examined 76 patients (52 males, 24 females) in peracute or acute hemisphetic (supratentorial) ischemic stroke. The age of participants was 66.5 ± 6.7 years. The examination involved neurological, neuropsychologic, neuroimaging and eye checks. Any disturbances of the visual object gnosis were diagnosed with the Object Decision test from the Birmingham Object Recognition Battery. According to brain CT and MRI results, all patients underwent assessment of their sulcus occipitotemporalis involvement. Study Results. Stroke-related visual object agnosia was diagnosed in 7 (9.2%) patients. Statistically significant correlation between foci localisation in the sulcus occipitotemporalis and visual object agnosia development (χ2 = 64.2; р < 0.001) has been demonstrated. The sensitivity of sulcus occipitotemporalis involvement as a biomarker of visual object agnosia in acute ischemic stroke was 85.7%, while the specificity was 100%. Conclusion. Sulcus occipitotemporalis involvement in acute ischemic stroke can be used as a neuroimaging biomarker of visual object agnosia. Keywords: visual agnosia, object agnosia, ischemic stroke, neuroimaging, sulcus occipitotemporalis.

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