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Related Experiment Video

Updated: Jul 12, 2026

Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans

Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans

Published on: January 15, 2018

No strategic interactions between sequential grasping actions.

Kevin A LeBlanc¹, David A Westwood²

¹Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada.

Frontiers in Human Neuroscience

|July 10, 2026

Summary

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The brain

Area of Science:

Neuroscience
Motor Control
Human Movement Science

Background:

Understanding grasping actions is crucial for daily tasks.
Limited knowledge exists on programming sequential grasping movements.
The brain's control of sequential actions requires further investigation.

Purpose of the Study:

To investigate how the characteristics of a second object influence the grasping of a first object in a sequence.
To determine if object size and orientation in sequential grasping tasks affect initial movement parameters.

Main Methods:

Two experiments were conducted to examine grasping kinematics.
Experiment 1 manipulated the size and orientation of the second object.
Experiment 2 replicated previous studies by manipulating only object orientation.

Keywords:

action sequence attention grasping motor control sequential movements

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Related Experiment Videos

Last Updated: Jul 12, 2026

Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans

Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans

Published on: January 15, 2018

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

Corticospinal Excitability Modulation During Action Observation

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

Main Results:

The orientation of the second object did not significantly affect the grip orientation for the first object.
A smaller peak grip aperture was observed when the second object was smaller than the first.
Object orientation of the second object did not influence the first grasping movement.

Conclusions:

Sequential grasping kinematics are affected by object size, not orientation, when action plans overlap.
Interference in sequential grasping occurs when action plans share features, irrespective of strategic benefit.
Grasping control in sequential tasks is influenced by specific object feature overlap.