Limits of end-state planning

Frouke Hermens, Daniel Kral, David A Rosenbaum

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The end-state comfort effect is the tendency to use an uncomfortable initial grasp posture for object manipulation if this leads to a comfortable final posture. Many studies have replicated the end-state comfort effect across a range of tasks and conditions. However, these tasks had in common that they involved relatively simple movements, such as picking up a dowel or sliding a pan from one place to another. Here we asked whether the end-state comfort effect extends to more complex tasks. We asked participants to grasp a transparent bowl and move the bowl to an instructed location, positioning it in an instructed orientation. We either found an initial-state comfort effect or equal degrees of comfort for end-grasps and start-grasps depending on task instructions. The end-state comfort effect was not consistently observed. The results suggest that the end-state comfort effect may be restricted to relatively simple grasping movements.

Original languageEnglish
Pages (from-to)148-62
Number of pages15
JournalActa Psychologica
Volume148
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

Planning
Bowl
Posture
Manipulation
Positioning

Keywords

  • Adolescent
  • Adult
  • Female
  • Hand Strength/physiology
  • Humans
  • Male
  • Movement/physiology
  • Orientation/physiology
  • Posture/physiology
  • Psychomotor Performance/physiology
  • Young Adult

Cite this

Hermens, F., Kral, D., & Rosenbaum, D. A. (2014). Limits of end-state planning. Acta Psychologica, 148, 148-62. https://doi.org/10.1016/j.actpsy.2014.01.009
Hermens, Frouke ; Kral, Daniel ; Rosenbaum, David A. / Limits of end-state planning. In: Acta Psychologica. 2014 ; Vol. 148. pp. 148-62.
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Hermens, F, Kral, D & Rosenbaum, DA 2014, 'Limits of end-state planning', Acta Psychologica, vol. 148, pp. 148-62. https://doi.org/10.1016/j.actpsy.2014.01.009

Limits of end-state planning. / Hermens, Frouke; Kral, Daniel; Rosenbaum, David A.

In: Acta Psychologica, Vol. 148, 2014, p. 148-62.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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AU - Hermens, Frouke

AU - Kral, Daniel

AU - Rosenbaum, David A

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PY - 2014

Y1 - 2014

N2 - The end-state comfort effect is the tendency to use an uncomfortable initial grasp posture for object manipulation if this leads to a comfortable final posture. Many studies have replicated the end-state comfort effect across a range of tasks and conditions. However, these tasks had in common that they involved relatively simple movements, such as picking up a dowel or sliding a pan from one place to another. Here we asked whether the end-state comfort effect extends to more complex tasks. We asked participants to grasp a transparent bowl and move the bowl to an instructed location, positioning it in an instructed orientation. We either found an initial-state comfort effect or equal degrees of comfort for end-grasps and start-grasps depending on task instructions. The end-state comfort effect was not consistently observed. The results suggest that the end-state comfort effect may be restricted to relatively simple grasping movements.

AB - The end-state comfort effect is the tendency to use an uncomfortable initial grasp posture for object manipulation if this leads to a comfortable final posture. Many studies have replicated the end-state comfort effect across a range of tasks and conditions. However, these tasks had in common that they involved relatively simple movements, such as picking up a dowel or sliding a pan from one place to another. Here we asked whether the end-state comfort effect extends to more complex tasks. We asked participants to grasp a transparent bowl and move the bowl to an instructed location, positioning it in an instructed orientation. We either found an initial-state comfort effect or equal degrees of comfort for end-grasps and start-grasps depending on task instructions. The end-state comfort effect was not consistently observed. The results suggest that the end-state comfort effect may be restricted to relatively simple grasping movements.

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KW - Movement/physiology

KW - Orientation/physiology

KW - Posture/physiology

KW - Psychomotor Performance/physiology

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