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Related Experiment Video

Updated: May 17, 2026

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
09:46

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Published on: May 10, 2012

Submovement composition of head movement.

Lewis L Chen1, Daeyeol Lee, Kikuro Fukushima

  • 1Department of Otolaryngology, Neurobiology and Anatomical Sciences, Ophthalmology, University of Mississippi Medical Center, Jackson, Mississippi, USA. lchen2@umc.edu

Plos One
|November 10, 2012
PubMed
Summary
This summary is machine-generated.

Head movements are composed of distinct motor submovements, similar to limb movements. The composition of these submovements varies based on the task, revealing insights into head motor control.

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Published on: September 3, 2015

Area of Science:

  • Neuroscience
  • Motor Control
  • Biomechanics

Background:

  • Skeletomuscular movements, like limb motion, are characterized by smooth trajectories, suggesting minimized jerk (rate of change of acceleration).
  • The minimum-jerk model proposes that motor commands are optimized to reduce jerk during movement execution.

Purpose of the Study:

  • To investigate the submovement composition of horizontal head movements in nonhuman primates.
  • To determine if head movements follow the minimum-jerk submovement decomposition principles observed in limb movements.
  • To explore how task demands influence the composition of head movement submovements.

Main Methods:

  • Applied minimum-jerk submovement decomposition methodology to analyze horizontal head movements.
  • Examined three types of head movements: head-alone tracking, head-gaze pursuit, and eye-head combined gaze shifts.
  • Analyzed nonhuman primate head movement data during tracking and gaze shifts.

Main Results:

  • Head tracking movements consisted of discrete, non-overlapping submovements with bell-shaped velocity profiles.
  • Eye-head combined gaze shifts exhibited overlapping submovements, with the primary submovement having a higher peak velocity than subsequent ones.
  • The observed submovement patterns in head movements differed between tracking and combined gaze shifts.

Conclusions:

  • Head movements, like limb movements, are composed of submovements, supporting the biological plausibility of submovement decomposition.
  • The composition of head movement submovements is task-dependent, varying with different motor demands.
  • This study extends the understanding of submovement composition from limb to head motor control, offering insights into neural recruitment strategies.