Eye movements do not play an important role in the adaptation of hand tracking to a visuomotor rotation

Niels Gouirand, James Mathew, Eli Brenner, Frederic R. Danion

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Adapting hand movements to changes in our body or the environment is essential for skilled motor behavior. Although eye movements are known to assist hand movement control, how eye movements might contribute to the adaptation of hand movements remains largely unexplored. To determine to what extent eye movements contribute to visuomotor adaptation of hand tracking, participants were asked to track a visual target that followed an unpredictable trajectory with a cursor using a joystick. During blocks of trials, participants were either allowed to look wherever they liked or required to fixate a cross at the center of the screen. Eye movements were tracked to ensure gaze fixation as well as to examine free gaze behavior. The cursor initially responded normally to the joystick, but after several trials, the direction in which it responded was rotated by 90°. Although fixating the eyes had a detrimental influence on hand tracking performance, participants exhibited a rather similar time course of adaptation to rotated visual feedback in the gaze-fixed and gaze-free conditions. More importantly, there was extensive transfer of adaptation between the gaze-fixed and gaze-free conditions. We conclude that although eye movements are relevant for the online control of hand tracking, they do not play an important role in the visuomotor adaptation of such tracking. These results suggest that participants do not adapt by changing the mapping between eye and hand movements, but rather by changing the mapping between hand movements and the cursor's motion independently of eye movements. NEW & NOTEWORTHY Eye movements assist hand movements in everyday activities, but their contribution to visuomotor adaptation remains largely unknown. We compared adaptation of hand tracking under free gaze and fixed gaze. Although our results confirm that following the target with the eyes increases the accuracy of hand movements, they unexpectedly demonstrate that gaze fixation does not hinder adaptation. These results suggest that eye movements have distinct contributions for online control and visuomotor adaptation of hand movements.

Original languageEnglish
Pages (from-to)1967-1976
Number of pages10
JournalJournal of neurophysiology
Volume121
Issue number5
DOIs
Publication statusPublished - 16 May 2019

Fingerprint

Eye Movements
Hand
Sensory Feedback

Keywords

  • eye fixation
  • eye-hand coordination
  • gaze behavior
  • humans
  • sensorimotor adaptation

Cite this

Gouirand, Niels ; Mathew, James ; Brenner, Eli ; Danion, Frederic R. / Eye movements do not play an important role in the adaptation of hand tracking to a visuomotor rotation. In: Journal of neurophysiology. 2019 ; Vol. 121, No. 5. pp. 1967-1976.
@article{c3d7c7e9c55e4553be881f93edfd075d,
title = "Eye movements do not play an important role in the adaptation of hand tracking to a visuomotor rotation",
abstract = "Adapting hand movements to changes in our body or the environment is essential for skilled motor behavior. Although eye movements are known to assist hand movement control, how eye movements might contribute to the adaptation of hand movements remains largely unexplored. To determine to what extent eye movements contribute to visuomotor adaptation of hand tracking, participants were asked to track a visual target that followed an unpredictable trajectory with a cursor using a joystick. During blocks of trials, participants were either allowed to look wherever they liked or required to fixate a cross at the center of the screen. Eye movements were tracked to ensure gaze fixation as well as to examine free gaze behavior. The cursor initially responded normally to the joystick, but after several trials, the direction in which it responded was rotated by 90°. Although fixating the eyes had a detrimental influence on hand tracking performance, participants exhibited a rather similar time course of adaptation to rotated visual feedback in the gaze-fixed and gaze-free conditions. More importantly, there was extensive transfer of adaptation between the gaze-fixed and gaze-free conditions. We conclude that although eye movements are relevant for the online control of hand tracking, they do not play an important role in the visuomotor adaptation of such tracking. These results suggest that participants do not adapt by changing the mapping between eye and hand movements, but rather by changing the mapping between hand movements and the cursor's motion independently of eye movements. NEW & NOTEWORTHY Eye movements assist hand movements in everyday activities, but their contribution to visuomotor adaptation remains largely unknown. We compared adaptation of hand tracking under free gaze and fixed gaze. Although our results confirm that following the target with the eyes increases the accuracy of hand movements, they unexpectedly demonstrate that gaze fixation does not hinder adaptation. These results suggest that eye movements have distinct contributions for online control and visuomotor adaptation of hand movements.",
keywords = "eye fixation, eye-hand coordination, gaze behavior, humans, sensorimotor adaptation",
author = "Niels Gouirand and James Mathew and Eli Brenner and Danion, {Frederic R.}",
year = "2019",
month = "5",
day = "16",
doi = "10.1152/jn.00814.2018",
language = "English",
volume = "121",
pages = "1967--1976",
journal = "Journal of neurophysiology",
issn = "0022-3077",
publisher = "American Physiological Society",
number = "5",

}

Eye movements do not play an important role in the adaptation of hand tracking to a visuomotor rotation. / Gouirand, Niels; Mathew, James; Brenner, Eli; Danion, Frederic R.

In: Journal of neurophysiology, Vol. 121, No. 5, 16.05.2019, p. 1967-1976.

Research output: Contribution to JournalArticleAcademicpeer-review

TY - JOUR

T1 - Eye movements do not play an important role in the adaptation of hand tracking to a visuomotor rotation

AU - Gouirand, Niels

AU - Mathew, James

AU - Brenner, Eli

AU - Danion, Frederic R.

PY - 2019/5/16

Y1 - 2019/5/16

N2 - Adapting hand movements to changes in our body or the environment is essential for skilled motor behavior. Although eye movements are known to assist hand movement control, how eye movements might contribute to the adaptation of hand movements remains largely unexplored. To determine to what extent eye movements contribute to visuomotor adaptation of hand tracking, participants were asked to track a visual target that followed an unpredictable trajectory with a cursor using a joystick. During blocks of trials, participants were either allowed to look wherever they liked or required to fixate a cross at the center of the screen. Eye movements were tracked to ensure gaze fixation as well as to examine free gaze behavior. The cursor initially responded normally to the joystick, but after several trials, the direction in which it responded was rotated by 90°. Although fixating the eyes had a detrimental influence on hand tracking performance, participants exhibited a rather similar time course of adaptation to rotated visual feedback in the gaze-fixed and gaze-free conditions. More importantly, there was extensive transfer of adaptation between the gaze-fixed and gaze-free conditions. We conclude that although eye movements are relevant for the online control of hand tracking, they do not play an important role in the visuomotor adaptation of such tracking. These results suggest that participants do not adapt by changing the mapping between eye and hand movements, but rather by changing the mapping between hand movements and the cursor's motion independently of eye movements. NEW & NOTEWORTHY Eye movements assist hand movements in everyday activities, but their contribution to visuomotor adaptation remains largely unknown. We compared adaptation of hand tracking under free gaze and fixed gaze. Although our results confirm that following the target with the eyes increases the accuracy of hand movements, they unexpectedly demonstrate that gaze fixation does not hinder adaptation. These results suggest that eye movements have distinct contributions for online control and visuomotor adaptation of hand movements.

AB - Adapting hand movements to changes in our body or the environment is essential for skilled motor behavior. Although eye movements are known to assist hand movement control, how eye movements might contribute to the adaptation of hand movements remains largely unexplored. To determine to what extent eye movements contribute to visuomotor adaptation of hand tracking, participants were asked to track a visual target that followed an unpredictable trajectory with a cursor using a joystick. During blocks of trials, participants were either allowed to look wherever they liked or required to fixate a cross at the center of the screen. Eye movements were tracked to ensure gaze fixation as well as to examine free gaze behavior. The cursor initially responded normally to the joystick, but after several trials, the direction in which it responded was rotated by 90°. Although fixating the eyes had a detrimental influence on hand tracking performance, participants exhibited a rather similar time course of adaptation to rotated visual feedback in the gaze-fixed and gaze-free conditions. More importantly, there was extensive transfer of adaptation between the gaze-fixed and gaze-free conditions. We conclude that although eye movements are relevant for the online control of hand tracking, they do not play an important role in the visuomotor adaptation of such tracking. These results suggest that participants do not adapt by changing the mapping between eye and hand movements, but rather by changing the mapping between hand movements and the cursor's motion independently of eye movements. NEW & NOTEWORTHY Eye movements assist hand movements in everyday activities, but their contribution to visuomotor adaptation remains largely unknown. We compared adaptation of hand tracking under free gaze and fixed gaze. Although our results confirm that following the target with the eyes increases the accuracy of hand movements, they unexpectedly demonstrate that gaze fixation does not hinder adaptation. These results suggest that eye movements have distinct contributions for online control and visuomotor adaptation of hand movements.

KW - eye fixation

KW - eye-hand coordination

KW - gaze behavior

KW - humans

KW - sensorimotor adaptation

UR - http://www.scopus.com/inward/record.url?scp=85066920167&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85066920167&partnerID=8YFLogxK

U2 - 10.1152/jn.00814.2018

DO - 10.1152/jn.00814.2018

M3 - Article

VL - 121

SP - 1967

EP - 1976

JO - Journal of neurophysiology

JF - Journal of neurophysiology

SN - 0022-3077

IS - 5

ER -