Evidence for a reference frame transformation of vestibular signal contributions to voluntary reaching

Moreau-Debord, Ian; Martin, Christophe Z.; Landry, Marianne; Green, Andrea M.

doi:10.1152/jn.00419.2013

Cited by 19 publications

(34 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreau‐Debord et al . () demonstrated that, exactly as for the postural system, the effect of GVS upon arm movement is systematically modulated by head orientation, with the largest effect being observed with the head pitched downward. In this case, the stimulus evokes a sense of yaw motion, resulting in a compensatory leftward (or rightward) arm movement.…”

Section: Introductionmentioning

confidence: 82%

“…As shown here, the direction of the evoked arm movement is consistently towards the anode electrode, with the largest magnitude observed during head‐down tilt, being minimal when the head is upright (Moreau‐Debord et al . ). This dependence on head orientation is consistent with GVS producing a sensation of head roll about a naso‐occipital axis in the direction of the cathode electrode (Fitzpatrick et al .…”

Section: Discussionmentioning

confidence: 97%

“…; Moreau‐Debord et al . ). This apparent invariance of the response with the task could be interpreted as the manifestation of a ‘hard‐wired’ reflex; that is, a fixed relationship between vestibular input and upper‐limb output, regardless of task or posture.…”

Section: Discussionmentioning

confidence: 97%

“…; Moreau‐Debord et al . ). Galvanic vestibular stimulation artificially stimulates the vestibular system, producing a false sensation of movement, primarily consisting of head roll (Day et al .…”

Section: Introductionmentioning

confidence: 97%

“…; Moreau‐Debord et al . ). Similar to the postural response, the arm response has been interpreted as compensation for sensed whole‐body displacement (Bresciani et al .…”

Section: Introductionmentioning

confidence: 97%

See 4 more Smart Citations

Vestibular feedback maintains reaching accuracy during body movement

Smith

Reynolds

2016

The Journal of Physiology

View full text Add to dashboard Cite

Key points Reaching movements can be perturbed by vestibular input, but the function of this response is unclear.Here, we applied galvanic vestibular stimulation concurrently with real body movement while subjects maintained arm position either fixed in space or fixed with respect to their body.During the fixed‐in‐space conditions, galvanic vestibular stimulation caused large changes in arm trajectory consistent with a compensatory response to maintain upper‐limb accuracy in the face of body movement.Galvanic vestibular stimulation responses were absent during the body‐fixed task, demonstrating task dependency in vestibular control of the upper limb.The results suggest that the function of vestibular‐evoked arm movements is to maintain the accuracy of the upper limb during unpredictable body movement, but only when reaching in an earth‐fixed reference frame. AbstractWhen using our arms to interact with the world, unintended body motion can introduce movement error. A mechanism that could detect and compensate for such motion would be beneficial. Observations of arm movements evoked by vestibular stimulation provide some support for this mechanism. However, the physiological function underlying these artificially evoked movements is unclear from previous research. For such a mechanism to be functional, it should operate only when the arm is being controlled in an earth‐fixed rather than a body‐fixed reference frame. In the latter case, compensation would be unnecessary and even deleterious. To test this hypothesis, subjects were gently rotated in a chair while being asked to maintain their outstretched arm pointing towards either earth‐fixed or body‐fixed memorized targets. Galvanic vestibular stimulation was applied concurrently during rotation to isolate the influence of vestibular input, uncontaminated by inertial factors. During the earth‐fixed task, galvanic vestibular stimulation produced large polarity‐dependent corrections in arm position. These corrections mimicked those evoked when chair velocity was altered without any galvanic vestibular stimulation, indicating a compensatory arm response to a sensation of altered body motion. In stark contrast, corrections were completely absent during the body‐fixed task, despite the same chair movement profile and arm posture. These effects persisted when we controlled for differences in limb kinematics between the two tasks. Our results demonstrate that vestibular control of the upper limb maintains reaching accuracy during unpredictable body motion. The observation that such responses occurred only when reaching within an earth‐fixed reference frame confirms the functional nature of vestibular‐evoked arm movement.

show abstract

Section: Introductionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

“…; Moreau‐Debord et al . ). Similar to the postural response, the arm response has been interpreted as compensation for sensed whole‐body displacement (Bresciani et al .…”

Section: Introductionmentioning

confidence: 97%

See 3 more Smart Citations

Vestibular feedback maintains reaching accuracy during body movement

Smith

Reynolds

2016

The Journal of Physiology

View full text Add to dashboard Cite

show abstract

Is the manual following response an attempt to compensate for inferred self-motion?

et al. 2019

View full text Add to dashboard Cite

If the surrounding of a visual target unexpectedly starts to move during a fast goal-directed hand movement, the hand reflexively moves along with it. This is known as the ‘manual following response’. One explanation for this response is that it is a compensation for inferred self-motion in space. Previous studies have shown that background motion gives rise to both postural responses and deviations in goal-directed hand movements. To evaluate whether compensation for inferred self-motion is responsible for the manual responses we examined whether galvanic stimulation of the vestibular system would give rise to similar deviations in hand movements. Standing participants tried to quickly tap on targets that were presented on a horizontal screen. Participants could infer self-motion on some of the trials, either from galvanic vestibular stimulation or from background motion. Both perturbations took place during the hand movement. It took both the head and hand about 45 ms longer to respond to background motion than to respond to galvanic stimulation. The head responded in a similar manner to both types of perturbations. The hand responded about as expected to galvanic stimulation, but much more vigorously to background motion. Thus, the manual response to background motion is probably not a direct consequence of trying to compensate for inferred self-motion. Perhaps the manual following response is a consequence of an error in binding motion information to objects.

show abstract

Vestibular motor control

Cullen

2023

Handbook of Clinical Neurology

View full text Add to dashboard Cite

Evidence for a reference frame transformation of vestibular signal contributions to voluntary reaching

Abstract: Moreau-Debord I, Martin CZ, Landry M, Green AM. Evidence for a reference frame transformation of vestibular signal contributions to voluntary reaching.

Cited by 19 publications

References 72 publications

Vestibular feedback maintains reaching accuracy during body movement

Vestibular feedback maintains reaching accuracy during body movement

Is the manual following response an attempt to compensate for inferred self-motion?

Vestibular motor control

Contact Info

Product

Resources

About