Using Body Ownership to Modulate the Motor System in Stroke Patients

Tambone, Riccardo; Giachero, Alberto; Calati, Melanie; Molo, Maria Teresa; Burin, Dalila; Pyasik, Maria; Cabria, Francesca; Pia, Lorenzo

doi:10.1177/0956797620975774

Cited by 18 publications

(24 citation statements)

References 56 publications

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“…A study by Seinfeld and colleagues 24 found that participants who performed the motor task through a Leap motion sensor, seeing one’s virtual hand, felt a stronger sense of body-ownership and the sense of agency and showed better task performance than those who performed the task with a keyboard and could not see one’s avatar. In relation to clinical population, Tambone and colleagues 25 demonstrated that observing the virtual body’s movements from a first-person perspective helps increase body-ownership, which subsequently promotes stroke patients' motor recovery by accessing their motor functioning. These studies seem to support a positive functional link between virtual embodiment and improved motor abilities and performance.…”

Section: Introductionmentioning

confidence: 99%

Effects of virtual body-representation on motor skill learning

Shin

Lim

Kim

et al. 2022

Sci Rep

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Motor learning is often hindered or facilitated by visual information from one’s body and its movement. However, it is unclear whether visual representation of the body itself facilitates motor learning. Thus, we tested the effects of virtual body-representation on motor learning through a virtual reality rotary pursuit task. In the task, visual feedback on participants’ movements was identical, but virtual body-representation differed by dividing the experimental conditions into three conditions: non-avatar, non-hand avatar, and hand-shaped avatar. We measured the differences in the rate of motor learning, body-ownership, and sense of agency in the three conditions. Although there were no differences in body-ownership and sense of agency between the conditions, the hand-shaped avatar condition was significantly superior to the other conditions in the rate of learning. These findings suggest that visually recognizing one’s body shape facilitates motor learning.

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Section: Introductionmentioning

confidence: 99%

Effects of virtual body-representation on motor skill learning

Shin

Lim

Kim

et al. 2022

Sci Rep

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“…A considerable body of research suggests that the full body illusion induces also distinct behavioral, cognitive, and emotional changes. Several studies focused on the motor domain and examined how feeling ownership of a moving avatar triggers a correspondent self-attribution of the avatar's movements and/or their properties [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Other studies have investigated interpersonal relationships and the way in which illusory ownership modulates harassment, motherhood, and counseling behavior [ 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Changing your body changes your eating attitudes: embodiment of a slim virtual avatar induces avoidance of high-calorie food

Tambone

Poggio

Pyasik

et al. 2021

Heliyon

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The virtual-reality full-body illusion paradigm has been suggested to not only trigger the illusory ownership of the avatar's body but also the attitudinal and behavioral components stereotypically associated to that kind of virtual body. In the present study, we investigated whether this was true for stereotypes related to body size: body satisfaction and eating control behavior. Healthy participants underwent the full-body illusion paradigm with an avatar having either a larger or a slimmer body than their own, and were assessed for implicit attitudes towards body image and food calorie content at baseline and after each full-body illusion session. Results showed that the illusion emerged regardless of the avatar's body size, whereas the perceived dimension of the own body size changed according to the avatar's body size (i.e., participants felt to be slimmer after embodying their slim avatar and larger after embodying their large avatar). Crucially, we found that implicit attitudes towards food, but not those towards one's own body, were modulated by the size of the virtual body. Compared to baseline, ownership of a slimmer avatar increased the avoidance of high-calorie food, whereas ownership of a larger avatar did not induce changes. Our findings suggest that the illusory feeling of being slimmer drives also the food-related stereotypes associated with that body size, increasing the regulation of eating behaviors.

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“…It has been proposed that use of interventions, such as visual illusion and imagery, targeting the individuals’ body ownership and improve representation of the upper limb may be beneficial if applied prior to conventional motor rehabilitation training in stroke [ 84 ]. What is more, a strong feeling of body ownership may well contribute to successful restoration of motor function [ 85 ]. That body perception disturbance is more common in those who experience pain post-stroke may indicate that such a relationship could be particularly relevant for stroke survivors with chronic pain.…”

Section: Discussionmentioning

confidence: 99%

“My Hand Is Different”: Altered Body Perception in Stroke Survivors with Chronic Pain

et al. 2022

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Background: Chronic pain and body perception disturbance are common following stroke. It is possible that an interaction exists between pain and body perception disturbance, and that a change in one may influence the other. We therefore investigated the presence of body perception disturbance in individuals with stroke, aiming to determine if a perceived change in hand size contralateral to the stroke lesion is more common in those with chronic pain than in those without. Methods: Stroke survivors (N = 523) completed an online survey that included: stroke details, pain features, and any difference in perceived hand size post-stroke. Results: Individuals with stroke who experienced chronic pain were almost three times as likely as those without chronic pain to perceive their hand as now being a different size (OR = 2.895; 95%CI 1.844, 4.547). Further, those with chronic pain whose pain included the hand were almost twice as likely to perceive altered hand size than those whose pain did not include the hand (OR = 1.862; 95%CI 1.170, 2.962). This was not influenced by hemisphere of lesion (p = 0.190). Conclusions: The results point to a new characteristic of chronic pain in stroke, raising the possibility of body perception disturbance being a rehabilitation target to improve function and pain-related outcomes for stroke survivors.

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Using Body Ownership to Modulate the Motor System in Stroke Patients

Cited by 18 publications

References 56 publications

Effects of virtual body-representation on motor skill learning

Effects of virtual body-representation on motor skill learning

Changing your body changes your eating attitudes: embodiment of a slim virtual avatar induces avoidance of high-calorie food

“My Hand Is Different”: Altered Body Perception in Stroke Survivors with Chronic Pain

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