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 Concept Videos

Planar Rigid-Body Motion01:22

Planar Rigid-Body Motion

577
Understanding the movement of a rigid body in planar motion involves recognizing that every particle within this body is traversing a path that maintains a consistent distance from a specific plane. This concept is fundamental in the study of physics and mechanical engineering, and it allows us to comprehend better how objects move in space.
Planar motion is typically divided into three distinct categories. The first is rectilinear translation, demonstrated by a subway train that moves along...
577
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

280
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
280

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Novel tool use does not depend on mechanical reasoning: evidence from apraxia.

bioRxiv : the preprint server for biology·2026
Same author

Dissociation between physical reasoning and tool use in individuals with left hemisphere brain damage.

Cortex; a journal devoted to the study of the nervous system and behavior·2026
Same author

Upregulating action semantics with neuromodulation and gesture observation to facilitate verb retrieval in aphasia.

bioRxiv : the preprint server for biology·2026
Same author

Causes and consequences of unawareness (anosognosia) of tool-action errors after left-hemisphere stroke.

bioRxiv : the preprint server for biology·2026
Same author

Somatosensory realignment following single and dual force-field adaptation.

Journal of neurophysiology·2025
Same author

The cognitive neuropsychology of action semantics: A review.

Cortex; a journal devoted to the study of the nervous system and behavior·2025

Related Experiment Video

Updated: Sep 26, 2025

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
08:24

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

10.4K

Action imitation via trajectory-based or posture-based planning.

Erica M Barhorst-Cates1, Mitchell W Isaacs1, Laurel J Buxbaum1

  • 1Moss Rehabilitation Research Institute, 60 Township Line Rd, Elkins Park, PA 19027, USA.

Human Movement Science
|April 23, 2022
PubMed
Summary
This summary is machine-generated.

Researchers found evidence that posture imitation and trajectory imitation are distinct motor learning mechanisms. Switching between them incurs a processing cost, suggesting they rely on different neural resources.

Keywords:
Posture matching imitationSequential multitasking paradigmTrajectory imitation

More Related Videos

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
06:58

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

Published on: November 6, 2015

9.6K
Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.7K

Related Experiment Videos

Last Updated: Sep 26, 2025

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
08:24

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Published on: August 30, 2016

10.4K
A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
06:58

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

Published on: November 6, 2015

9.6K
Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

6.7K

Area of Science:

  • Cognitive Neuroscience
  • Motor Control
  • Human Movement Science

Background:

  • Imitation is crucial for social interaction and motor learning.
  • Two theorized imitation methods are posture-based imitation and trajectory imitation.
  • It remains unclear if these methods are distinct or interchangeable.

Purpose of the Study:

  • To investigate if posture and trajectory imitation are distinct mechanisms.
  • To determine if switching between these imitation types incurs a processing cost.
  • To provide evidence for computationally distinct imitation mechanisms.

Main Methods:

  • Twenty-five healthy adults performed a sequential multitasking imitation task.
  • Participants focused on either limb postures or hand paths of a model.
  • An intervening motor task (neutral, congruent, or incongruent) preceded imitation.
  • Spatial and temporal imitation accuracy and consistency were analyzed.

Main Results:

  • A processing cost was observed when imitating trajectories after a posture-matching task.
  • Imitation consistency decreased following incongruent posture tasks.
  • This cost was not observed when imitating limb postures.
  • Results suggest trajectory imitation is disrupted by incongruent posture information.

Conclusions:

  • Initial evidence supports posture and trajectory imitation as distinct mechanisms.
  • These mechanisms appear to rely on different computational and neural resources.
  • The findings are consistent with the existence of separate imitation systems.