Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Impaired orientation processing in hemispatial neglect.

Monika Harvey1, Bettina Olk, Roger Newport

  • 1Department of Psychology, University of Glasgow, Glasgow, Scotland, UK. M.Harvey@psy.gla.ac.uk

Neuroreport
|May 15, 2007
PubMed
Summary
This summary is machine-generated.

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

Developmental delay in attaining adult levels of motor excitability in children and adolescents with Tourette syndrome: a mega-analysis study.

bioRxiv : the preprint server for biology·2026
Same author

An investigation of a novel public health campaign to improve understanding of persistent pain.

Musculoskeletal science & practice·2026
Same author

Augmented Reality and Artificial Intelligence for the Assessment and Rehabilitation of Spatial Neglect: A Systematic Review.

Neurorehabilitation and neural repair·2026
Same author

NeuroFM: Toward Precision Neuroimaging with Foundation Models for Individualized Brain Health Estimation.

medRxiv : the preprint server for health sciences·2026
Same author

Noninvasive brain stimulation for Gilles de la Tourette syndrome.

Handbook of clinical neurology·2026
Same author

Strategy and Motivation, Rather Than Fatigue, Drive Age-Related Differences in Sustained Attention Performance: Evidence for Decoupled Beta-Band Oscillations.

The European journal of neuroscience·2026

Patients with hemispatial neglect underestimate line length, especially for horizontally oriented stimuli. This size perception deficit varies significantly among individuals with neglect.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Clinical Neurology

Background:

  • Hemispatial neglect, often resulting from right-hemisphere brain damage, is associated with altered sensory perception.
  • Previous research indicates deficits in size perception in patients with hemispatial neglect.

Purpose of the Study:

  • To investigate the impact of object orientation on size perception deficits in hemispatial neglect.
  • To quantify the modulation of size perception by line orientation in right-hemisphere stroke patients.

Main Methods:

  • A comparative study involving right-hemisphere-lesioned patients (with and without neglect) and a control group.
  • A psychophysical task requiring participants to compare the lengths of bilaterally presented lines, with orientation varied across blocks.

Related Experiment Videos

  • Adaptive staircase procedure to precisely measure perceived length differences.

    • Main Results:

    • Patients with hemispatial neglect consistently underestimated the length of lines presented on the left side of space.
    • This underestimation was most pronounced for horizontal lines and lines rotated by 30 degrees.
    • The magnitude of the size perception distortion varied substantially among neglect patients, ranging from 2% to 20%.

    Conclusions:

    • Object orientation significantly modulates size perception deficits in hemispatial neglect.
    • The findings highlight the complex interplay between spatial attention, visual perception, and object properties in neurological disorders.
    • Individual variability in the severity of neglect-related perceptual distortions is considerable.