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Updated: Jun 26, 2026
07:04
Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
Published on: March 10, 2021
Leftward motion restores number space in neglect.
Elena Salillas1, Alessia Granà, Montserrat Juncadella
1Psychology Department, University of Trieste, Italy. elena.salillas@utsa.edu
Summary
Leftward motion visually guided attention, improving number comparison for patients with left-sided neglect. This optokinetic stimulation (OKS) suggests motion can restore mental number line access in neglect.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Neurology
Background:
- Left-sided neglect is a cognitive disorder impacting spatial attention.
- Patients with neglect struggle with tasks involving number representation and comparison.
- Optokinetic stimulation (OKS) involves visual motion to influence attention.
Purpose of the Study:
- To investigate the effect of visual motion on number comparison in patients with left-sided neglect.
- To determine if optokinetic stimulation (OKS) can ameliorate representational neglect.
- To explore the impact of motion direction on the mental number line representation.
Main Methods:
- Patients with left-sided neglect performed a number comparison task.
- The task was paired with coherent leftward, rightward, or random visual motion.
- Performance was compared to healthy controls and right hemisphere damage (RHD) patients without neglect.
Main Results:
- Leftward motion significantly improved performance on number comparison for patients with neglect.
- The typical distance effect in number comparison was observed only with leftward motion.
- These motion-dependent effects were absent in control groups (healthy and RHD without neglect).
Conclusions:
- Optokinetic stimulation (OKS) can alleviate representational neglect symptoms.
- Perception of motion can restore altered access to the mental number line in neglect.
- External attention redirection via visual motion is a potential therapeutic avenue.
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