scholarly journals Influence of Different Conditions of the Target Hand on Motor Learning with Mirror Visual Feedback

2019 ◽  
Vol 34 (1) ◽  
pp. 97-101
Author(s):  
Ryo HARIGAI ◽  
Tsubasa KAWASAKI ◽  
Hidenori YANO
Keyword(s):  
Motor Learning ◽  
Visual Feedback ◽  
Mirror Visual Feedback ◽  
Target Hand

Mirror visual feedback can induce motor learning in patients with callosal disconnection

2013 ◽  
Vol 227 (1) ◽  
pp. 79-83 ◽  
Author(s):  
Ippei Nojima ◽  
Tatsuhide Oga ◽  
Hidenao Fukuyama ◽  
Toshio Kawamata ◽  
Tatsuya Mima
Keyword(s):  
Motor Learning ◽  
Visual Feedback ◽  
Mirror Visual Feedback

scholarly journals A Novel Application of Virtual Reality for Pain Control: Virtual Reality-Mirror Visual Feedback Therapy

10.5772/51139 ◽  
2012 ◽  
Author(s):  
Kenji Sato ◽  
Satoshi Fukumori ◽  
Kantaro Miyake ◽  
Daniel Obata ◽  
Akio Gofuku ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Visual Feedback ◽  
Pain Control ◽  
Mirror Visual Feedback

scholarly journals Exposure to auditory feedback delay while speaking induces perceptual habituation but does not mitigate the disruptive effect of delay on speech auditory-motor learning

2020 ◽  
Author(s):  
Douglas M. Shiller ◽  
Takashi Mitsuya ◽  
Ludo Max
Keyword(s):  
Motor Learning ◽  
Visual Feedback ◽  
Auditory Feedback ◽  
Detrimental Effect ◽  
Negative Impact ◽  
Motor Adaptation ◽  
List Type ◽  
Disruptive Effect ◽  
Feedback Delay ◽  
Spectral Perturbation

ABSTRACTPerceiving the sensory consequences of our actions with a delay alters the interpretation of these afferent signals and impacts motor learning. For reaching movements, delayed visual feedback of hand position reduces the rate and extent of visuomotor adaptation, but substantial adaptation still occurs. Moreover, the detrimental effect of visual feedback delay on reach motor learning—selectively affecting its implicit component—can be mitigated by prior habituation to the delay. Auditory-motor learning for speech has been reported to be more sensitive to feedback delay, and it remains unknown whether habituation to auditory delay reduces its negative impact on learning. We investigated whether 30 minutes of exposure to auditory delay during speaking (a) affects the subjective perception of delay, and (b) mitigates its disruptive effect on speech auditory-motor learning. During a speech adaptation task with real-time perturbation of vowel spectral properties, participants heard this frequency-shifted feedback with no delay, 75 ms delay, or 115 ms delay. In the delay groups, 50% of participants had been exposed to the delay throughout a preceding 30-minute block of speaking whereas the remaining participants completed this block without delay. Although habituation minimized awareness of the delay, no improvement in adaptation to the spectral perturbation was observed. Thus, short-term habituation to auditory feedback delays is not effective in reducing the negative impact of delay on speech auditory-motor adaptation. Combined with previous findings, the strong negative effect of delay and the absence of an influence of delay awareness suggest the involvement of predominantly implicit learning mechanisms in speech.HIGHLIGHTSSpeech auditory-motor adaptation to a spectral perturbation was reduced by ~50% when feedback was delayed by 75 or 115 ms.Thirty minutes of prior delay exposure without perturbation effectively reduced participants’ awareness of the delay.However, habituation was ineffective in remediating the detrimental effect of delay on speech auditory-motor adaptation.The dissociation of delay awareness and adaptation suggests that speech auditory-motor learning is mostly implicit.

scholarly journals Reabilitação da hemiparesia pós-acidente vascular encefálico com mirror visual feedback

2018 ◽  
Vol 8 (6) ◽  
pp. 452 ◽  
Author(s):  
Claudia Morais Trevisan
Keyword(s):  
Visual Feedback ◽  
Mirror Visual Feedback

O objetivo deste estudo piloto foi investigar a efetividade do método de reabilitação baseado no mirror visual feedback em paciente apresentando precário uso funcional do membro superior devido comprometimento motor e principalmente sensorial, pós-acidente vascular encefálico, em fase crônica. Foi realizada avaliação cinemática do movimento de membro superior, antes e após quatro semanas de mirror visual feedback, quantificando ângulos de movimentação articular e tempos, em tarefas de alcance e preensão, utilizando-se o sistema automatizado de vídeo Peak PerformanceTM.Nos resultados apresentados no pós-teste, tanto as curvas representativas do movimento como o tempo de execução das tarefas do lado afetado aproximaram-se sensivelmente às respostas observadas no membro não-afetado. O presente estudo sugere que a reabilitação pelo mirror visual feedback é um método efetivo na recuperação de membro parético pós-acidente vascular encefálico, mesmo em fase crônica.Palavras-chave: biomecânica, acidente vascular encefálico, hemiplegia, reabilitação. 

Central regulation of physical fatigue via mirror visual feedback

2011 ◽  
Vol 11 (3) ◽  
pp. 171-175 ◽  
Author(s):  
Ken Tsutsumi ◽  
Masaaki Tanaka ◽  
Yoshihito Shigihara ◽  
Yasuyoshi Watanabe
Keyword(s):  
Visual Feedback ◽  
Central Regulation ◽  
Physical Fatigue ◽  
Mirror Visual Feedback

scholarly journals Effects of camera-based mirror visual feedback therapy for patients who had a stroke and the neural mechanisms involved: protocol of a multicentre randomised control study

BMJ Open ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. e022828 ◽  
Author(s):  
Li Ding ◽  
Xu Wang ◽  
Xiaoli Guo ◽  
Shugeng Chen ◽  
Hewei Wang ◽  
...  
Keyword(s):  
Motor Imagery ◽  
Visual Feedback ◽  
Visual Stimulation ◽  
Controlled Trial ◽  
Intervention Group ◽  
Functional Independence ◽  
Neural Mechanisms ◽  
Feedback Intervention ◽  
Mirror Visual Feedback ◽  
Hand Laterality

IntroductionAs a combination of visual stimulation and motor imagery, mirror visual feedback (MVF) is an effective treatment for motor impairment after stroke; however, few studies have investigated its effects on relevant cognitive processes such as visual perception and motor imagery. Camera-based MVF (camMVF) overcomes the intrinsic limitations of real mirrors and is recognised as an optimal setup. This study aims to investigate the effects of camMVF as an adjunct treatment for stroke patients, compare camMVF outcomes with those of conventional therapy and elucidate neural mechanisms through which MVF influences cognition and brain networks.Methods and analysisThis will be a multicentre, single-blinded, randomised controlled trial including 90 patients randomised into three groups: camera-based mirror visual feedback intervention group (30), shielded mirror visual feedback intervention group (30) and conventional group (30). Patients in each group will receive a 60 min intervention 5 days per week over 4 weeks. The primary outcome will be the Fugl-Meyer Assessment Upper Limb subscale measurement. Secondary outcomes include the modified Ashworth Scale, Grip Strength test, Modified Barthel Index, Functional Independence Measure, Berg Balance Scale, 10-metre walking test, hand-laterality task and electroencephalography .Ethics and disseminationEthics approval was granted by the Huashan Hospital Institutional Review Board on 15 March (KY2017-230). We plan to submit the results to a peer-reviewed journal and present them at conferences, rehabilitation forums and to the general public.Trial registration numberChiCTR-INR-17013644; Pre-results.

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