Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Visuospatial dysgnosia.

American Journal of Ophthalmology

|September 1, 1979

Summary

This summary is machine-generated.

Spatial dysgnosia, a loss of environmental awareness, can result from various brain diseases. Lesions in specific brain regions, particularly the nondominant hemisphere, often cause visuospatial disturbances.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Action spectrum of keratitis produced by ultraviolet radiation.

Archives of ophthalmology (Chicago, Ill. : 1929)·2010

Same author

Keratitis due to N-butyl alcohol.

Archives of ophthalmology (Chicago, Ill. : 1929)·2010

Same author

The cornea; permeability of the excised cornea to ions, as determined by measurements of impedance.

Archives of ophthalmology (Chicago, Ill. : 1929)·2010

Same author

Action spectrum of ultraviolet keratitis.

American journal of ophthalmology·2010

Same author

Clinical disturbances of the oculomotor system.

Archives of ophthalmology (Chicago, Ill. : 1929)·2010

Same author

Aims and aids in the teaching of basic sciences in ophtalmology.

Archives of ophthalmology (Chicago, Ill. : 1929)·2010

Same journal

Reply to Comment on "Clinicopathological and Imaging Distinction Between Ocular Adnexal MALT Lymphoma and IgG4-Related Ophthalmic Disease".

American journal of ophthalmology·2026

Same journal

Comment on: Visual Field Progression in Glaucoma Patients With Delayed Follow-Up.

American journal of ophthalmology·2026

Same journal

Corneal sensitivity changes and nerve plexus abnormalities in noninfectious anterior uveitis.

American journal of ophthalmology·2026

Same journal

Role of Menopausal Hormone Therapy on Strabismus, Strabismus Surgery, and Reoperation Rates.

American journal of ophthalmology·2026

Same journal

Forging Ahead: The Need for Improved Representation in Academic Ophthalmology.

American journal of ophthalmology·2026

Same journal

Clinical Utility of Ultra-Widefield Swept-Source OCT for Intraocular Tumors: Comparison With Ultrasonography, SD-OCT, and MRI.

American journal of ophthalmology·2026

See all related articles

Area of Science:

Neuroscience
Neurology
Cognitive Science

Background:

Spatial dysgnosia is a neurological condition affecting spatial awareness.
It is associated with diverse brain pathologies, including tumors, vascular accidents, Alzheimer's disease, multiple sclerosis, and developmental disorders.

Observation:

Lesions in the nondominant hemisphere, especially at the occipito-temporoparietal junction, frequently lead to visuospatial dysgnosia.
This manifests as a loss of the sense of 'whereness' concerning self-environment and object-object relationships.

Findings:

Visuospatial disturbances from dominant hemisphere lesions can be obscured by other gnostic symptoms.
Extensive lesions, particularly those affecting both hemispheres similarly, may also present with additional visual cognitive deficits.

Related Experiment Videos

Implications:

Understanding the neuroanatomical basis of spatial dysgnosia is crucial for diagnosis and treatment.
Identifying specific lesion locations can help predict the type and severity of visuospatial deficits.