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

Crossed apraxia: implications for handedness.

A M Raymer1, A S Merians, J C Adair

  • 1Dept. of ESSE, Old Dominion University, Norfolk, VA 23529-0136, USA. sraymer@odu.edu

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|June 16, 1999
PubMed
Summary

Right-handed individuals can experience limb apraxia (skilled movement impairment) due to right hemisphere damage. This finding challenges existing theories on brain dominance for learned movements.

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

Nano-org, a functional resource for single-molecule localisation microscopy data.

Nature communications·2025
Same author

Brain structure and verbal function across adulthood while controlling for cerebrovascular risks.

Human brain mapping·2017
Same author

Size and distribution of lacunes defined by computed tomography: Correlation with blood pressure and possible stroke mechanisms.

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association·2015
Same author

The role of cognitive models in language rehabilitation.

NeuroRehabilitation·2014
Same author

Characterization of a normal control group: are they healthy?

NeuroImage·2013
Same author

Parkinson's disease patients show impaired corrective grasp control and eye-hand coupling when reaching to grasp virtual objects.

Neuroscience·2013

Area of Science:

  • Neuroscience
  • Neurology
  • Cognitive Science

Background:

  • Historically, left hemisphere dominance was linked to right-hand preference and skilled motor control.
  • Limb apraxia, a deficit in planning and executing skilled movements, typically results from left hemisphere lesions.

Observation:

  • The case of a right-handed individual (RF) with apraxia following a right frontal lesion presented a challenge to established theories.
  • This study investigated whether RF's apraxia mirrored deficits seen in left hemisphere-damaged patients.

Findings:

  • Behavioral testing revealed significant impairments in gesture production but preserved gesture recognition in RF, similar to patients with left hemisphere lesions.
  • Kinematic analyses confirmed parallel movement deficits in RF and patients with left hemisphere apraxia, including issues with movement linearity and planarity.

Related Experiment Videos

Implications:

  • The findings suggest that the systems underlying hand preference and skilled motor control may be fractionated.
  • This challenges the traditional view of a strict left hemisphere dominance for learned, skilled movements in right-handed individuals.