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Related Experiment Videos

Hand kinematics during reaching and grasping in the macaque monkey.

A C Roy1, Y Paulignan, A Farnè

  • 1Institut des Sciences Cognitives, CNRS UPR 9075, 67 bd Pinel, 69675, Cedex, Bron, France.

Behavioural Brain Research
|December 2, 2000
PubMed
Summary

This study reveals that macaque monkeys exhibit similar hand movement patterns to humans during reaching and grasping tasks. These findings support the use of monkeys as a valuable animal model for understanding human motor control.

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Area of Science:

  • Neuroscience
  • Comparative Psychology
  • Biomechanics

Background:

  • Understanding human motor control relies on animal models.
  • Prehension movements, involving reaching and grasping, are complex motor skills.

Purpose of the Study:

  • To develop an animal model for prehension movements.
  • To compare hand kinematics of reaching and grasping in monkeys with human data.

Main Methods:

  • Recorded three-dimensional hand movements in monkeys performing pointing and reaching/grasping tasks.
  • Compared monkey kinematic data with published human data.

Main Results:

  • Monkey pointing movements showed ipsilateral asymmetry, similar to humans.
  • Perturbations affected monkey pointing movement velocity and duration like in humans.

Related Experiment Videos

  • Monkey reaching-to-grasp movements exhibited a bell-shaped wrist velocity profile and grip aperture correlated with object size, mirroring human patterns.

    • Conclusions:

    • Macaque monkeys demonstrate conserved kinematic features in prehension movements compared to humans.
    • The macaque monkey serves as a relevant animal model for studying human motor control mechanisms.