Visual gravity influences arm movement planning

Alessandra Sciutti, Laurent Demougeot, Bastien Berret, Simone Toma, Giulio Sandini, Charalambos Papaxanthis, Thierry Pozzo

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

When submitted to a visuomotor rotation, subjects show rapid adaptation of visually guided arm reaching movements, indicated by a progressive reduction in reaching errors. In this study, we wanted to make a step forward by investigating to what extent this adaptation also implies changes into the motor plan. Up to now, classical visuomotor rotation paradigms have been performed on the horizontal plane, where the reaching motor plan in general requires the same kinematics (i.e., straight path and symmetric velocity profile). To overcome this limitation, we considered vertical and horizontal movement directions requiring specific velocity profiles. This way, a change in the motor plan due to the visuomotor conflict would be measurable in terms of a modification in the velocity profile of the reaching movement. Ten subjects performed horizontal and vertical reaching movements while observing a rotated visual feedback of their motion. We found that adaptation to a visuomotor rotation produces a significant change in the motor plan, i.e., changes to the symmetry of velocity profiles. This suggests that the central nervous system takes into account the visual information to plan a future motion, even if this causes the adoption of nonoptimal motor plans in terms of energy consumption. However, the influence of vision on arm movement planning is not fixed, but rather changes as a function of the visual orientation of the movement. Indeed, a clear influence on motion planning can be observed only when the movement is visually presented as oriented along the vertical direction. Thus vision contributes differently to the planning of arm pointing movements depending on motion orientation in space.

Original languageEnglish (US)
Pages (from-to)3433-3445
Number of pages13
JournalJournal of neurophysiology
Volume107
Issue number12
DOIs
StatePublished - Jun 15 2012
Externally publishedYes

Fingerprint

Gravitation
Sensory Feedback
Biomechanical Phenomena
Central Nervous System
Direction compound

Keywords

  • Internal model of gravity
  • Motor planning
  • Vertical
  • Visual rotation
  • Visuomotor conflict

ASJC Scopus subject areas

  • Neuroscience(all)
  • Physiology

Cite this

Sciutti, A., Demougeot, L., Berret, B., Toma, S., Sandini, G., Papaxanthis, C., & Pozzo, T. (2012). Visual gravity influences arm movement planning. Journal of neurophysiology, 107(12), 3433-3445. https://doi.org/10.1152/jn.00420.2011

Visual gravity influences arm movement planning. / Sciutti, Alessandra; Demougeot, Laurent; Berret, Bastien; Toma, Simone; Sandini, Giulio; Papaxanthis, Charalambos; Pozzo, Thierry.

In: Journal of neurophysiology, Vol. 107, No. 12, 15.06.2012, p. 3433-3445.

Research output: Contribution to journalArticle

Sciutti, A, Demougeot, L, Berret, B, Toma, S, Sandini, G, Papaxanthis, C & Pozzo, T 2012, 'Visual gravity influences arm movement planning', Journal of neurophysiology, vol. 107, no. 12, pp. 3433-3445. https://doi.org/10.1152/jn.00420.2011
Sciutti A, Demougeot L, Berret B, Toma S, Sandini G, Papaxanthis C et al. Visual gravity influences arm movement planning. Journal of neurophysiology. 2012 Jun 15;107(12):3433-3445. https://doi.org/10.1152/jn.00420.2011
Sciutti, Alessandra ; Demougeot, Laurent ; Berret, Bastien ; Toma, Simone ; Sandini, Giulio ; Papaxanthis, Charalambos ; Pozzo, Thierry. / Visual gravity influences arm movement planning. In: Journal of neurophysiology. 2012 ; Vol. 107, No. 12. pp. 3433-3445.
@article{3cfb0094e5ae4cd69680deab4ee8fefc,
title = "Visual gravity influences arm movement planning",
abstract = "When submitted to a visuomotor rotation, subjects show rapid adaptation of visually guided arm reaching movements, indicated by a progressive reduction in reaching errors. In this study, we wanted to make a step forward by investigating to what extent this adaptation also implies changes into the motor plan. Up to now, classical visuomotor rotation paradigms have been performed on the horizontal plane, where the reaching motor plan in general requires the same kinematics (i.e., straight path and symmetric velocity profile). To overcome this limitation, we considered vertical and horizontal movement directions requiring specific velocity profiles. This way, a change in the motor plan due to the visuomotor conflict would be measurable in terms of a modification in the velocity profile of the reaching movement. Ten subjects performed horizontal and vertical reaching movements while observing a rotated visual feedback of their motion. We found that adaptation to a visuomotor rotation produces a significant change in the motor plan, i.e., changes to the symmetry of velocity profiles. This suggests that the central nervous system takes into account the visual information to plan a future motion, even if this causes the adoption of nonoptimal motor plans in terms of energy consumption. However, the influence of vision on arm movement planning is not fixed, but rather changes as a function of the visual orientation of the movement. Indeed, a clear influence on motion planning can be observed only when the movement is visually presented as oriented along the vertical direction. Thus vision contributes differently to the planning of arm pointing movements depending on motion orientation in space.",
keywords = "Internal model of gravity, Motor planning, Vertical, Visual rotation, Visuomotor conflict",
author = "Alessandra Sciutti and Laurent Demougeot and Bastien Berret and Simone Toma and Giulio Sandini and Charalambos Papaxanthis and Thierry Pozzo",
year = "2012",
month = "6",
day = "15",
doi = "10.1152/jn.00420.2011",
language = "English (US)",
volume = "107",
pages = "3433--3445",
journal = "Journal of Neurophysiology",
issn = "0022-3077",
publisher = "American Physiological Society",
number = "12",

}

TY - JOUR

T1 - Visual gravity influences arm movement planning

AU - Sciutti, Alessandra

AU - Demougeot, Laurent

AU - Berret, Bastien

AU - Toma, Simone

AU - Sandini, Giulio

AU - Papaxanthis, Charalambos

AU - Pozzo, Thierry

PY - 2012/6/15

Y1 - 2012/6/15

N2 - When submitted to a visuomotor rotation, subjects show rapid adaptation of visually guided arm reaching movements, indicated by a progressive reduction in reaching errors. In this study, we wanted to make a step forward by investigating to what extent this adaptation also implies changes into the motor plan. Up to now, classical visuomotor rotation paradigms have been performed on the horizontal plane, where the reaching motor plan in general requires the same kinematics (i.e., straight path and symmetric velocity profile). To overcome this limitation, we considered vertical and horizontal movement directions requiring specific velocity profiles. This way, a change in the motor plan due to the visuomotor conflict would be measurable in terms of a modification in the velocity profile of the reaching movement. Ten subjects performed horizontal and vertical reaching movements while observing a rotated visual feedback of their motion. We found that adaptation to a visuomotor rotation produces a significant change in the motor plan, i.e., changes to the symmetry of velocity profiles. This suggests that the central nervous system takes into account the visual information to plan a future motion, even if this causes the adoption of nonoptimal motor plans in terms of energy consumption. However, the influence of vision on arm movement planning is not fixed, but rather changes as a function of the visual orientation of the movement. Indeed, a clear influence on motion planning can be observed only when the movement is visually presented as oriented along the vertical direction. Thus vision contributes differently to the planning of arm pointing movements depending on motion orientation in space.

AB - When submitted to a visuomotor rotation, subjects show rapid adaptation of visually guided arm reaching movements, indicated by a progressive reduction in reaching errors. In this study, we wanted to make a step forward by investigating to what extent this adaptation also implies changes into the motor plan. Up to now, classical visuomotor rotation paradigms have been performed on the horizontal plane, where the reaching motor plan in general requires the same kinematics (i.e., straight path and symmetric velocity profile). To overcome this limitation, we considered vertical and horizontal movement directions requiring specific velocity profiles. This way, a change in the motor plan due to the visuomotor conflict would be measurable in terms of a modification in the velocity profile of the reaching movement. Ten subjects performed horizontal and vertical reaching movements while observing a rotated visual feedback of their motion. We found that adaptation to a visuomotor rotation produces a significant change in the motor plan, i.e., changes to the symmetry of velocity profiles. This suggests that the central nervous system takes into account the visual information to plan a future motion, even if this causes the adoption of nonoptimal motor plans in terms of energy consumption. However, the influence of vision on arm movement planning is not fixed, but rather changes as a function of the visual orientation of the movement. Indeed, a clear influence on motion planning can be observed only when the movement is visually presented as oriented along the vertical direction. Thus vision contributes differently to the planning of arm pointing movements depending on motion orientation in space.

KW - Internal model of gravity

KW - Motor planning

KW - Vertical

KW - Visual rotation

KW - Visuomotor conflict

UR - http://www.scopus.com/inward/record.url?scp=84862540450&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862540450&partnerID=8YFLogxK

U2 - 10.1152/jn.00420.2011

DO - 10.1152/jn.00420.2011

M3 - Article

C2 - 22442569

AN - SCOPUS:84862540450

VL - 107

SP - 3433

EP - 3445

JO - Journal of Neurophysiology

JF - Journal of Neurophysiology

SN - 0022-3077

IS - 12

ER -