Figure 43: How the Brain Makes Sense of What It Sees - The Dorsal and Ventral Visual Pathways, and a 3 Tiered Approach to Vision

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Identifier gold_textbook_figures_043
Title Figure 43: How the Brain Makes Sense of What It Sees - The Dorsal and Ventral Visual Pathways, and a 3 Tiered Approach to Vision
Creator Daniel R. Gold, DO
Affiliation (DRG) Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
Description 1) Ventral ("what") stream - this begins with the ‘P' retinal ganglion cells à parvocellular layers of the lateral geniculate nucleus (LGN, 3-6) à V1/striate cortex (in blue) à V4/V4a (fusiform and lingual gyri) à occipitotemporal regions. 2) Dorsal ("where") stream - this begins with the ‘M' retinal ganglion cells à magnocellular layers of the LGN (1, 2) à V1/striate cortex à V5/V5a à occipitoparietal regions. Balint syndrome consists of simultanagnosia, optic ataxia, and oculomotor apraxia, although one feature (e.g., simultanagnosia) can be appreciated in the absence of the others. *For objective identification (general visual agnosia) - in the left hemisphere, think "words" (pure alexia) and in the right hemisphere, think "faces and places" (prosopagnosia, topographagnosia). (The classification of cerebral visual dysfunction using a 3-tiered approach is courtesy of Dr. Jason Barton. The figure was developed with the input of Dr. Victoria Pelak.)
Date 2022
References Gold D. (2022). Neuro-ophthalmology and neuro-otology : a case-based guide for clinicians and scientists. Springer International Publishing AG. Retrieved September 16 2022 from https://online.statref.com/p/1057?grpAlias=.
Language eng
Format image/jpeg
Type Image
Relation is Part of Neuro-Ophthalmology and Neuro-Otology: A Case-Based Guide for Clinicians and Scientists
Collection Neuro-Ophthalmology Virtual Education Library: Dan Gold Collection: https://novel.utah.edu/Gold/
Publisher North American Neuro-Ophthalmology Society
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah
Rights Management Copyright 2016. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
ARK ark:/87278/s661xd3m
File Name gold_textbook_figures_043.png
Setname ehsl_novel_gold
ID 2050028
Reference URL https://collections.lib.utah.edu/ark:/87278/s661xd3m
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