Behavioral Investigation on the Frames of Reference Involved in Visuomotor Transformations during Peripheral Arm Reaching

Ambrosini, Ettore; Ciavarro, Marco; Pelle, Gina; Perrucci, Mauro Gianni; Galati, Gaspare; Fattori, Patrizia; Galletti, Claudio; Committeri, Giorgia

doi:10.1371/journal.pone.0051856

Cited by 11 publications

(4 citation statements)

References 48 publications

(63 reference statements)

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“…However, because movements to visual targets are hypothesized to be planned in a visual reference frame (Ambrosini et al 2012;Buneo and Andersen 2006;Thompson et al 2012Thompson et al , 2014, previous studies have argued that the reaching limb's position must first be converted into extrinsic visual coordinates prior to the initiation of corrections (Prablanc and Martin 1992;Reichenbach et al 2009). It is unknown if such online sensorimotor transformation processes also occur for reaches to non-visual targets.…”

Section: Introductionmentioning

confidence: 99%

Rapid online corrections for upper limb reaches to perturbed somatosensory targets: evidence for non-visual sensorimotor transformation processes

et al. 2019

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When performing upper limb reaches, the sensorimotor system can adjust to changes in target location even if the reaching limb is not visible. To accomplish this task, sensory information about the new target location and the current position of the unseen limb are used to program online corrections. Previous researchers have argued that, prior to the initiation of corrections, somatosensory information from the unseen limb must be transformed into a visual reference frame. However, most of these previous studies involved movements to visual targets. The purpose of the present study was to determine if visual sensorimotor transformations are also necessary for the online control of movements to somatosensory targets. Participants performed reaches towards somatosensory and visual targets without vision of their reaching limb. Target positions were either stationary, or perturbed before (~450 ms), or after movement onset (~100 ms or ~200 ms). In response to target perturbations after movement onset, participants exhibited shorter correction latencies, larger correction magnitudes, and smaller movement endpoint errors when they reached to somatosensory targets as compared to visual targets. Because reference frame transformations have been shown to increase both processing time and errors, these results indicate that hand position was not transformed into visual reference frame during online corrections for movements to somatosensory targets. These findings support the idea that different sensorimotor transformations are used for the online control of movements to somatosensory and visual targets.

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Section: Introductionmentioning

confidence: 99%

Rapid online corrections for upper limb reaches to perturbed somatosensory targets: evidence for non-visual sensorimotor transformation processes

et al. 2019

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“…In this frame of reference, the body (including the hand) and the objects of the environment would be encoded relative to each other within a retinal map (i.e., object-based coding of space) (Burgess et al, 2004; Galati et al, 2000; Paillard, 1987). Such visual representation of space would be largely independent of somatosensory inputs (Ambrosini et al, 2012; Blouin et al, 1993; Medendorp et al, 2008). Accordingly, our results suggest that controlling the motion of the hand or of a tool with incongruent visual feedback enables the use of an allocentric reference frame.…”

Section: Discussionmentioning

confidence: 99%

Seeing our hand or a tool during visually-guided actions: different effects on the somatosensory and visual cortices

Mathieu

Abillama

Moré

et al. 2022

Preprint

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The processing of proprioceptive information in the context of a conflict between visual and somatosensory feedbacks deteriorates motor performance. Previous studies have shown that seeing one's hand increases the weighting assigned to arm somatosensory inputs. In this light, we hypothesized that the sensory conflict, when tracing the contour of a shape with mirror-reversed vision, will be greater for participants who trace with a stylus seen in their hand (Hand group, n=17) than for participants who trace with the tip of rod without seen their hand (Tool group, n=15). Based on this hypothesis, we predicted that the tracing performance with mirror vision will be more deteriorated for the Hand group than for the Tool group, and we predicted a greater gating of somatosensory information for the Hand group to reduce the sensory conflict. The participants of both groups followed the outline of a shape in two visual conditions. Direct vision: the participants saw the hand or portion of a light 40 cm rod directly. Mirror Vision: the hand or the rod was seen through a mirror. We measured tracing performance using a digitizing tablet and the cortical activity with electroencephalography. Behavioral analyses revealed that the tracing performance of both groups was similarly impaired by mirror vision. However, contrasting the spectral content of the cortical oscillatory activity between the Mirror and Direct conditions, we observed that tracing with mirror vision resulted in significantly larger alpha (8-12 Hz) and beta (15-25 Hz) powers in the somatosensory cortex for participants of the Hand group. The somatosensory alpha and beta powers did not significantly differ between Mirror and Direct vision conditions for the Tool group. For both groups, tracing with mirror vision altered the activity of the visual cortex: decreased alpha power for the Hand group, decreased alpha and beta power for the Tool group. Overall, these results suggest that seeing the hand enhanced the sensory conflict when tracing with mirror vision and that the increase of alpha and beta powers in the somatosensory cortex served to reduce the weight assigned to somatosensory information. The increased activity of the visual cortex observed for both groups in the mirror vision condition suggests greater visual processing with increased task difficulty. Finally, the fact that the participants of the Tool group did not show better tracing performance than those of the Hand group suggests that tracing deterioration resulted from a sensorimotor conflict (as opposed to a visuo-proprioceptive conflict).

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“…We follow this argumentation. First, we transform the perceived action into a gaze- or vision-centered oculomotor frame of reference that has been shown to also code the visual targets for reaching and other actions (Russo and Bruce, 1996; Engel et al, 2002; Ambrosini et al, 2012). Using those we are also able to circumvent the need for detailed programming of motor commands.…”

Section: Hierarchical Predictive Belief Updatementioning

confidence: 99%

A Predictive Processing Model of Perception and Action for Self-Other Distinction

Kahl

Kopp

2018

Front. Psychol.

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During interaction with others, we perceive and produce social actions in close temporal distance or even simultaneously. It has been argued that the motor system is involved in perception and action, playing a fundamental role in the handling of actions produced by oneself and by others. But how does it distinguish in this processing between self and other, thus contributing to self-other distinction? In this paper we propose a hierarchical model of sensorimotor coordination based on principles of perception-action coupling and predictive processing in which self-other distinction arises during action and perception. For this we draw on mechanisms assumed for the integration of cues for a sense of agency, i.e., the sense that an action is self-generated. We report results from simulations of different scenarios, showing that the model is not only able to minimize free energy during perception and action, but also showing that the model can correctly attribute sense of agency to own actions.

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Behavioral Investigation on the Frames of Reference Involved in Visuomotor Transformations during Peripheral Arm Reaching

Cited by 11 publications

References 48 publications

Rapid online corrections for upper limb reaches to perturbed somatosensory targets: evidence for non-visual sensorimotor transformation processes

Rapid online corrections for upper limb reaches to perturbed somatosensory targets: evidence for non-visual sensorimotor transformation processes

Seeing our hand or a tool during visually-guided actions: different effects on the somatosensory and visual cortices

A Predictive Processing Model of Perception and Action for Self-Other Distinction

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