Control of discrete bimanual movements: How each hand benefits from the other

Kagerer, Florian A.

doi:10.1016/j.neulet.2014.10.002

Cited by 7 publications

(4 citation statements)

References 30 publications

(11 reference statements)

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“…Direct evidence of interference originating from the left hand's strength in form of better endpoint accuracy in the right hand was not observed: Irrespective of whether the right or the left hand was kinesthetically guided, the variability of movement end positions did not differ between the two hands. A previous study using only veridical feedback and comparing unimanual kinesthetic performance with simultaneous bimanual kinesthetic/visual performance (Kagerer 2014) found that when the visually guided left hand moved together with the kinesthetically guided right hand, endpoint accuracy was higher in the right hand. At the same time, there is some indication that the hypothesized endpoint control mechanism is expressed less consistently (Wang and Sainburg 2003); it is therefore possible that the abrupt and fairly large visual feedback perturbation attenuated or masked the left hand's proficiency for endpoint accuracy control and diminished the potential for interference here.…”

Section: Isodirectional Interferencementioning

confidence: 97%

Crossmodal interference in bimanual movements: effects of abrupt visuo-motor perturbation of one hand on the other

Kagerer

2014

Exp Brain Res

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Studies on bimanual control inevitably deal with questions about interactions between the two effectors, mostly under conditions of sensory feedback of the same modality-usually vision-for both hands. This study used a novel paradigm in which one hand performed target-directed movements under visual control, while the other hand operated under predominantly kinesthetic control, without visual feedback. By introducing an abrupt visual feedback perturbation in the 'visible' hand, resulting in an update of its visuo-motor map, the robustness of the kinesthetic-motor map of the 'invisible' hand against interference from the visually controlled hand could be tested. Results show that the visuo-motor adaptation resulted in asymmetric directional interference: when the 'visible' right hand adapted to the perturbation, it interfered substantially more with the 'invisible' left hand (group 1) than when the left hand was under visual control and the right hand under kinesthetic control (group 2). The results support recent theories of functional lateralization postulating dominance of the right hand for trajectory control and demonstrate that on the level of arm kinematics, this interference crosses modality boundaries. Interestingly, while in most participants interference manifested itself in isodirectional deviations of the kinesthetically guided hand, the deviations in a small subsample of participants mirrored those of the visually guided hand. The results are discussed in the context of potential neural crosstalk.

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Section: Isodirectional Interferencementioning

confidence: 97%

Crossmodal interference in bimanual movements: effects of abrupt visuo-motor perturbation of one hand on the other

Kagerer

2014

Exp Brain Res

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“…Ratios between right and left side were processed for all those parameters because many pathologies are asymmetric or affects only one side [27]. Therefore, it is important in clinics to quantify and compare the affected side related to the healthy one.…”

Section: Data Processingmentioning

confidence: 99%

Patients’ follow-up using biomechanical analysis of rehabilitation exercises

Bonnechère¹,

Jansen

Omelina

et al. 2017

IJSG

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Thanks to the evolution of game controllers video games are becoming more and more popular in physical rehabilitation. The integration of serious games in rehabilitation has been tested for various pathologies. Parallel to this clinical research, a lot of studies have been done in order to validate the use of these game controllers for simple biomechanical evaluation. Currently, it is thus possible to record the motions performed by the patients during serious gaming exercises for later analysis. Therefore, data collected during the exercises could be used for monitoring the evolution of the patients during long term rehabilitation. Before using the parameters extracted from the games to assess patients’ evolution two important aspects must be verified: the reproducibility of measurement and a possible effect of learning of the task to be performed. Ten healthy adults played 9 sessions of specific games developed for rehabilitation over a 3-weeks period. Nineteen healthy children played 2 sessions to study the influence of age. Different parameters were extracted from the games: time, range of motion, reaching area. Results of this study indicates that it is possible to follow the evolution of the patients during the rehabilitation process. The majority of the learning effect occurred during the very first session. Therefore, in order to allow proper regular monitoring, the results of this first session should not be included in the follow-up of the patient.

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“…Ratios between right and left side were processed for all those parameters because many pathologies are asymmetric or affects only one side [12].…”

Section: Data Processingmentioning

confidence: 99%

Biomechanical Analysis of Rehabilitation Exercises Performed During Serious Games Exercises

Bonnechère

Jansen

Omelina

et al. 2016

Lecture Notes in Computer Science

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Abstract. The use of video games in physical rehabilitation is becoming more and more popular. A lot of studies are focusing on the clinical efficacy of such kind on new interventions. However there is still, currently, a lack of information about the importance of learning effect of the task (e.g. motions required to play the game). Therefore the aim of this study was to evaluate the importance of motor learning during rehabilitation exercises performed with specially developed Serious Games. Ten healthy adults played 9 sessions of games over a 3 weeks period. Different parameters were extracted from the games to performed functional and biomechanical evaluation. ANOVA and ICC were processed to evaluate reproducibility of measurement. The majority of the learning effect occurred during the very first session. Therefore, in order to allow regular monitoring the results of this first session should not be included in the follow-up of the patient.

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Control of discrete bimanual movements: How each hand benefits from the other

Cited by 7 publications

References 30 publications

Crossmodal interference in bimanual movements: effects of abrupt visuo-motor perturbation of one hand on the other

Crossmodal interference in bimanual movements: effects of abrupt visuo-motor perturbation of one hand on the other

Patients’ follow-up using biomechanical analysis of rehabilitation exercises

Biomechanical Analysis of Rehabilitation Exercises Performed During Serious Games Exercises

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