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Updated: May 21, 2026
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Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
Published on: March 10, 2021
Task- and response related dissociations between neglect in near and far space: a morphometric case study
Lina Aimola1, Igor Schindler, Annalena Venneri
1Cognitive Neuroscience Research Unit, University of Durham, Durham, UK.
Behavioural Neurology
|June 21, 2012
Summary
Unilateral neglect patients show distinct spatial processing differences. Far space visual search deficits link to ventral stream damage, while near space motor neglect suggests dorsal stream involvement.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Neuroimaging
Background:
- Unilateral neglect can manifest differently in near vs. far space, suggesting distinct neural coding.
- The role of motor response requirements in modulating spatial processing deficits remains unclear.
Purpose of the Study:
- To investigate if spatial processing differences in unilateral neglect are task-independent or influenced by motor response demands.
- To explore the neural correlates of spatial neglect in near and far space.
Main Methods:
- Assessed a patient with right brain damage (MF) and healthy controls using visual search and Landmark tasks.
- Tasks involved directional (pointing) and non-directional (button press) motor responses in near and far space.
- Voxel-based morphometry analyzed the patient's brain lesion.
Main Results:
- MF exhibited left neglect in far space visual search (perceptual) and near space (motor).
- No neglect was observed in the Landmark task across distances.
- Lesion analysis revealed damage in right ventro-temporal cortex, insula, and other regions.
Conclusions:
- Far space visual search deficits correlate with ventral stream damage when relying on visual information.
- Near space motor neglect may involve dorsal stream-connected structures, particularly with directional motor activity.
