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Related Experiment Video

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Setting Limits on Supersymmetry Using Simplified Models
07:46

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Published on: November 15, 2013

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Limits of end-state planning.

Frouke Hermens1, Daniel Kral1, David A Rosenbaum2

  • 1School of Psychology, University of Aberdeen, UK.

Acta Psychologica
|February 18, 2014
PubMed
Summary
This summary is machine-generated.

The end-state comfort effect, where initial discomfort leads to final comfort in object manipulation, may only apply to simple movements. Complex tasks did not consistently show this effect.

Keywords:
Arm movementsEnd-state comfort effectGrasping

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Last Updated: May 3, 2026

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

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Area of Science:

  • Cognitive Psychology
  • Human Motor Control
  • Biomechanics

Background:

  • The end-state comfort effect describes the human tendency to adopt uncomfortable initial postures for object manipulation if it results in a comfortable final posture.
  • Previous research has consistently demonstrated this effect in tasks involving simple movements.

Purpose of the Study:

  • To investigate whether the end-state comfort effect extends to more complex object manipulation tasks.
  • To determine if task complexity influences the manifestation of the end-state comfort effect.

Main Methods:

  • Participants were instructed to grasp a transparent bowl and move it to a specified location and orientation.
  • Task instructions varied, influencing the required initial and final grasp postures.
  • Observed grasp postures were analyzed to identify the presence and degree of the end-state comfort effect.

Main Results:

  • The end-state comfort effect was not consistently observed in the complex bowl manipulation task.
  • Results indicated either an initial-state comfort effect or equal comfort for initial and final grasps, depending on specific task instructions.
  • The effect's presence was contingent on the nature of the task demands.

Conclusions:

  • The end-state comfort effect may be limited to relatively simple grasping movements.
  • Complex manipulation tasks might engage different motor control strategies that do not prioritize end-state comfort.
  • Further research is needed to delineate the boundaries of the end-state comfort effect in human motor behavior.