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Visual Agnosia

Visual Agnosia

Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...

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Related Experiment Video

Updated: Mar 23, 2026

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection

Published on: March 10, 2021

Relationship Between Closing-In and Spatial Neglect: A Case Study.

Massimiliano Conson¹, Claudia Nuzzaci, Laura Sagliano

¹*Neuropsychology Laboratory, Department of Psychology, Second University of Naples, Caserta, Italy †Santa Chiara Institute, Lecce, Italy.

Cognitive and Behavioral Neurology : Official Journal of the Society for Behavioral and Cognitive Neurology

|March 24, 2016

Summary

This summary is machine-generated.

This study examined how drawing direction and attention impact closing-in in a patient with right-brain damage and spatial neglect. Closing-in, a symptom of neglect, worsened with left-to-right drawing and increased attention demands.

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Area of Science:

Neuroscience
Cognitive Psychology
Clinical Neurology

Background:

Spatial neglect, a common deficit after right-brain damage, affects awareness of extrapersonal space.
Closing-in, characterized by abnormal proximity to stimuli, is a less understood manifestation of neglect.

Observation:

A patient with right-brain damage exhibiting extrapersonal neglect, dysexecutive deficits, and closing-in was studied.
The study investigated the interplay between spatial factors (drawing direction) and attentional load on closing-in behavior.

Findings:

Closing-in was most pronounced when the patient copied stimuli from left to right.
Increased attentional load (dual-tasking) significantly exacerbated closing-in, particularly in the right-to-left drawing direction.

Implications:

Closing-in may result from a pathological release of motor behavior, linked to extrapersonal neglect.
Understanding these factors can inform therapeutic strategies for patients with spatial neglect and related disorders.