The absence or temporal offset of visual feedback does not influence adaptation to novel movement dynamics

Erin McKenna, Laurence C. Jayet Bray, Weiwei Zhou, Wilsaan Joiner

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Delays in transmitting and processing sensory information require correctly associating delayed feedback to issued motor commands for accurate error compensation. The flexibility of this alignment between motor signals and feedback has been demonstrated for movement recalibration to visual manipulations, but the alignment dependence for adapting movement dynamics is largely unknown. Here we examined the effect of visual feedback manipulations on force-field adaptation. Three subject groups used a manipulandum while experiencing a lag in the corresponding cursor motion (0, 75, or 150 ms). When the offset was applied at the start of the session (continuous condition), adaptation was not significantly different between groups. However, these similarities may be due to acclimation to the offset before motor adaptation. We tested additional subjects who experienced the same delays concurrent with the introduction of the perturbation (abrupt condition). In this case adaptation was statistically indistinguishable from the continuous condition, indicating that acclimation to feedback delay was not a factor. In addition, end-point errors were not significantly different across the delay or onset conditions, but end-point correction (e.g., deceleration duration) was influenced by the temporal offset. As an additional control, we tested a group of subjects who performed without visual feedback and found comparable movement adaptation results. These results suggest that visual feedback manipulation (absence or temporal misalignment) does not affect adaptation to novel dynamics, independent of both acclimation and perceptual awareness. These findings could have implications for modeling how the motor system adjusts to errors despite concurrent delays in sensory feedback information. NEW & NOTEWORTHY A temporal offset between movement and distorted visual feedback (e.g., visuomotor rotation) influences the subsequent motor recalibration, but the effects of this offset for altered movement dynamics are largely unknown. Here we examined the influence of 1) delayed and 2) removed visual feedback on the adaptation to novel movement dynamics. These results contribute to understanding of the control strategies that compensate for movement errors when there is a temporal separation between motion state and sensory information.

Original languageEnglish (US)
Pages (from-to)2483-2498
Number of pages16
JournalJournal of Neurophysiology
Volume118
Issue number4
DOIs
StatePublished - Oct 17 2017
Externally publishedYes

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Sensory Feedback
Acclimatization
Deceleration
Automatic Data Processing

Keywords

  • Acclimation
  • Motor adaptation
  • Prediction error
  • Sensory feedback
  • Vision

ASJC Scopus subject areas

  • Neuroscience(all)
  • Physiology

Cite this

The absence or temporal offset of visual feedback does not influence adaptation to novel movement dynamics. / McKenna, Erin; Jayet Bray, Laurence C.; Zhou, Weiwei; Joiner, Wilsaan.

In: Journal of Neurophysiology, Vol. 118, No. 4, 17.10.2017, p. 2483-2498.

Research output: Contribution to journalArticle

McKenna, Erin ; Jayet Bray, Laurence C. ; Zhou, Weiwei ; Joiner, Wilsaan. / The absence or temporal offset of visual feedback does not influence adaptation to novel movement dynamics. In: Journal of Neurophysiology. 2017 ; Vol. 118, No. 4. pp. 2483-2498.
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