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

Planning and drawing complex shapes.

Martha Flanders1, Leigh A Mrotek, C C A M Gielen

  • 1Department of Neuroscience, University of Minnesota, 6-145 Jackson Hall, 312 Church St. S.E., Minneapolis, MN 55455, USA. fland001@umn.edu

Experimental Brain Research
|November 26, 2005
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

Utility and usability of a wearable system and progressive-challenge cued exercise program for encouraging use of the more involved arm at-home after stroke-a feasibility study with case reports.

Journal of neuroengineering and rehabilitation·2024
Same author

Utility and Usability of Two Forms of Supplemental Vibrotactile Kinesthetic Feedback for Enhancing Movement Accuracy and Efficiency in Goal-Directed Reaching.

Sensors (Basel, Switzerland)·2023
Same author

Extended training improves the accuracy and efficiency of goal-directed reaching guided by supplemental kinesthetic vibrotactile feedback.

Experimental brain research·2022
Same author

When intercepting moving targets, mid-movement error corrections reflect distinct responses to visual and haptic perturbations.

Experimental brain research·2022
Same author

Vibrotactile Perception for Sensorimotor Augmentation: Perceptual Discrimination of Vibrotactile Stimuli Induced by Low-Cost Eccentric Rotating Mass Motors at Different Body Locations in Young, Middle-Aged, and Older Adults.

Frontiers in rehabilitation sciences·2022
Same author

Vibration Propagation on the Skin of the Arm.

Applied sciences (Basel, Switzerland)·2021
Same journal

Changes in synergy formation and modulation during cyclic finger force production tasks in female adults with dystonic cerebral palsy.

Experimental brain research·2026
Same journal

Molecular links between reelin downregulation, topoisomerase IIβ alterations, and proteins involved in Alzheimer pathology in human SH-SY5Y neuroblastoma cell line.

Experimental brain research·2026
Same journal

Motor cortex excitability during spine shape-judgment in adolescent idiopathic scoliosis: a TMS motor evoked potential study.

Experimental brain research·2026
Same journal

Trajectory dynamics and endpoint accuracy in targeted ballistic contractions.

Experimental brain research·2026
Same journal

Exploring Sevoflurane promotes hippocampal neuron mitophagy in elderly postoperative cognitive dysfunction by HSP90AA1 based on network pharmacology.

Experimental brain research·2026
Same journal

Loading modulates monosynaptic transmission from spindle primary afferents to motoneurons in humans.

Experimental brain research·2026
See all related articles

This study explored how visually-guided and memory-guided arm movements are controlled. Findings show the 2/3 power law is most closely followed when tracing visible paths, suggesting distinct control strategies for different guidance mechanisms.

Area of Science:

  • Motor control
  • Human movement science
  • Robotics and biomechanics

Background:

  • Arm and hand movements rely on both sensory and memory-based guidance.
  • The 2/3 power law describes complex hand trajectory formation, relating tangential velocity to radius of curvature.

Purpose of the Study:

  • To investigate similarities and differences between visually-guided and memory-guided arm movements.
  • To determine the applicability of control principles, like the 2/3 power law, to different movement guidance types.

Main Methods:

  • A virtual reality system projected complex 3D target paths.
  • Human subjects performed three tasks: tracking a moving target, tracing a visible path, and drawing a path from memory.

Main Results:

Related Experiment Videos

  • Movement characteristics (speed, size, shape, posture) were similar across all conditions.
  • Adherence to the 2/3 power law was highest during the tracing (fully visible path) condition.
  • Exponent values in tracking and drawing conditions were >1/3, suggesting slower movement in areas of high curvature.

Conclusions:

  • The 2/3 power law is most robustly applied when visual feedback is continuously available.
  • Divergence from the 2/3 power law in tracking and drawing may reflect strategies for motor learning and memory encoding.
  • Movement control principles vary depending on the reliance on sensory versus memory-based guidance.