Memory mechanisms in grasping

C. Hesse, V. H. Franz

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

The availability of visual information influences the execution of goal-directed movements. This is very prominent in memory conditions, where a delay is introduced between stimulus presentation and execution of the movement. The corresponding effects could be due to a decay of the visual information or to different processing mechanisms used for movements directed at visible (dorsal stream) and remembered (ventral stream) objects as proposed by the two visual systems hypothesis. In three experiments, the authors investigated grasping under full vision and three different delay conditions with increasing memory demands. Results indicate that the visuomotor information used for grasping decays rapidly. No evidence was found for qualitative changes in movement kinematics and the use of different representations for visually guided and memory guided movements. Findings rather suggest that delayed grasping is similar to grasping directed to larger objects under full vision. Therefore, the authors propose that grasping after a delay is guided by classic memorymechanisms and that this is reflected in an increasing maximum grip aperture in grasping.

Original languageEnglish
Pages (from-to)1532-1545
Number of pages14
JournalNeuropsychologia
Volume47
Issue number6
Early online date19 Aug 2008
DOIs
Publication statusPublished - May 2009

Fingerprint

Hand Strength
Biomechanical Phenomena

Keywords

  • paper
  • action
  • memory
  • grasping
  • vision
  • motor control

Cite this

Memory mechanisms in grasping. / Hesse, C.; Franz, V. H.

In: Neuropsychologia, Vol. 47, No. 6, 05.2009, p. 1532-1545.

Research output: Contribution to journalArticle

Hesse, C. ; Franz, V. H. / Memory mechanisms in grasping. In: Neuropsychologia. 2009 ; Vol. 47, No. 6. pp. 1532-1545.
@article{04ca04f68dd04cf38681f7702d144021,
title = "Memory mechanisms in grasping",
abstract = "The availability of visual information influences the execution of goal-directed movements. This is very prominent in memory conditions, where a delay is introduced between stimulus presentation and execution of the movement. The corresponding effects could be due to a decay of the visual information or to different processing mechanisms used for movements directed at visible (dorsal stream) and remembered (ventral stream) objects as proposed by the two visual systems hypothesis. In three experiments, the authors investigated grasping under full vision and three different delay conditions with increasing memory demands. Results indicate that the visuomotor information used for grasping decays rapidly. No evidence was found for qualitative changes in movement kinematics and the use of different representations for visually guided and memory guided movements. Findings rather suggest that delayed grasping is similar to grasping directed to larger objects under full vision. Therefore, the authors propose that grasping after a delay is guided by classic memorymechanisms and that this is reflected in an increasing maximum grip aperture in grasping.",
keywords = "paper, action , memory, grasping, vision , motor control",
author = "C. Hesse and Franz, {V. H.}",
year = "2009",
month = "5",
doi = "10.1016/j.neuropsychologia.2008.08.012",
language = "English",
volume = "47",
pages = "1532--1545",
journal = "Neuropsychologia",
issn = "0028-3932",
publisher = "Elsevier Limited",
number = "6",

}

TY - JOUR

T1 - Memory mechanisms in grasping

AU - Hesse, C.

AU - Franz, V. H.

PY - 2009/5

Y1 - 2009/5

N2 - The availability of visual information influences the execution of goal-directed movements. This is very prominent in memory conditions, where a delay is introduced between stimulus presentation and execution of the movement. The corresponding effects could be due to a decay of the visual information or to different processing mechanisms used for movements directed at visible (dorsal stream) and remembered (ventral stream) objects as proposed by the two visual systems hypothesis. In three experiments, the authors investigated grasping under full vision and three different delay conditions with increasing memory demands. Results indicate that the visuomotor information used for grasping decays rapidly. No evidence was found for qualitative changes in movement kinematics and the use of different representations for visually guided and memory guided movements. Findings rather suggest that delayed grasping is similar to grasping directed to larger objects under full vision. Therefore, the authors propose that grasping after a delay is guided by classic memorymechanisms and that this is reflected in an increasing maximum grip aperture in grasping.

AB - The availability of visual information influences the execution of goal-directed movements. This is very prominent in memory conditions, where a delay is introduced between stimulus presentation and execution of the movement. The corresponding effects could be due to a decay of the visual information or to different processing mechanisms used for movements directed at visible (dorsal stream) and remembered (ventral stream) objects as proposed by the two visual systems hypothesis. In three experiments, the authors investigated grasping under full vision and three different delay conditions with increasing memory demands. Results indicate that the visuomotor information used for grasping decays rapidly. No evidence was found for qualitative changes in movement kinematics and the use of different representations for visually guided and memory guided movements. Findings rather suggest that delayed grasping is similar to grasping directed to larger objects under full vision. Therefore, the authors propose that grasping after a delay is guided by classic memorymechanisms and that this is reflected in an increasing maximum grip aperture in grasping.

KW - paper

KW - action

KW - memory

KW - grasping

KW - vision

KW - motor control

U2 - 10.1016/j.neuropsychologia.2008.08.012

DO - 10.1016/j.neuropsychologia.2008.08.012

M3 - Article

VL - 47

SP - 1532

EP - 1545

JO - Neuropsychologia

JF - Neuropsychologia

SN - 0028-3932

IS - 6

ER -