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

Visuo-spatial processing in parkinsonians.

G E Stelmach1, J G Phillips, A W Chau

  • 1Motor Behavior Laboratory, University of Wisconsin-Madison 53706.

Neuropsychologia
|January 1, 1989
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

Reputation and Reactions to the Successful Plagiarising Professor.

Psychological reports·2026
Same author

Cursor movements to targets labelled "stop": a kinematic analysis.

Ergonomics·2022
Same author

Thermal Resistance of Aeromonas hydrophila.

Journal of food protection·2019
Same author

Acid Enhancement of Clostridium botulinum Inhibition in Ham and Bacon Prepared with Potassium Sorbate and Sorbic Acid.

Journal of food protection·2019
Same author

Model for Predicting the pH of Foods Comprising Mixtures of Tomatoes and Low-Acid Ingredients.

Journal of food protection·2019
Same author

Size-Selective Sieving for Detecting Teliospores of Tilletia indica in Wheat Seed Samples.

Plant disease·2019
Same journal

Prevalence and modulation of rat off-track head scanning on linear tracks: possible implications for representational and dynamic properties of hippocampal place cells.

Neuropsychologia·2026
Same journal

Identifying networks within an fMRI multivariate searchlight analysis.

Neuropsychologia·2026
Same journal

Modulating sentence comprehension in people with aphasia through anodal tDCS: A double-blind randomized cross-over study.

Neuropsychologia·2026
Same journal

Deficient processing of regularity violations during visuospatial neglect: a visual mismatch negativity study.

Neuropsychologia·2026
Same journal

Seeing is believing: mental imagery amplifies moral, emotional, and motivational responding to mentally constructed hypothetical events.

Neuropsychologia·2026
Same journal

From past recall to future projection: What does verb tense production reveal about mental time travel in Alzheimer's disease?

Neuropsychologia·2026
See all related articles

Parkinson's disease (PD) patients exhibit motor control deficits, not primarily visuo-spatial processing issues. This study suggests PD motor impairments, rather than perception, underlie observed difficulties.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Movement Disorders

Background:

  • Parkinson's disease (PD) is associated with visuo-spatial processing deficits, potentially contributing to motor control issues.
  • Previous research often confounds perceptual and motor processes, leading to ambiguous findings regarding visuo-spatial impairments in PD.

Purpose of the Study:

  • To systematically differentiate the roles of perception, stimulus-response translation, movement preparation, and execution in PD visuo-spatial tasks.
  • To clarify whether observed visuo-spatial deficits in Parkinson's disease stem from perceptual or motor impairments.

Main Methods:

  • Utilized visual reaction time (RT) tasks involving spatial displacement judgments.
  • Compared seven non-demented Parkinson's disease patients with seven age-matched controls.

Related Experiment Videos

  • Analyzed both reaction time (RT) and movement time (MT) data.

    • Main Results:

    • Parkinson's disease patients showed deficits in movement preparation and execution, indicated by RT and MT data.
    • PD patients were not significantly slower in perceptual judgments or linking perception to action.
    • Motor control impairments appear to contribute significantly to visuo-spatial task difficulties in PD.

    Conclusions:

    • Findings suggest that motor execution and preparation deficits, rather than primary visuo-spatial perception problems, are central to Parkinson's disease performance on these tasks.
    • The study highlights the need to disentangle motor and perceptual components when assessing cognitive function in Parkinson's disease.
    • Motor impairments may explain previously reported visuo-spatial deficits in Parkinson's disease patients.