Mirror Observation of Finger Action Enhances Activity in Anterior Intraparietal Sulcus: A Functional Magnetic Resonance Imaging Study

Numata, Kenji; Murayama, Takashi; Takasugi, Jun; Monma, Masahiko; Oga, Masaru

doi:10.1298/jjpta.vol16_001

Cited by 16 publications

(20 citation statements)

References 24 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The primary aim of the present study was to examine the boosting effect of action observation (AO) on the motor outcome of the untrained hand by means of mirror visual feedback (MVF), video therapy (VT), or a combination of both. In our first experiment, we confirmed the boosting effect of AO during MVF by means of previously evaluated tasks [ 22 , 40 , 48 ]. Motor outcome of the untrained hand was greater after training with MVF compared to training without mirror feedback.…”

Section: Discussionsupporting

confidence: 74%

“…We therefore support the assumption that the positive effect of both MVF and VT on the untrained hand is based on visuomotor inputs and sensorimotor inputs received by AO. This is further supported by results indicating that regions of visual attention and the integration of visual and somatosensory information, such as the secondary visual cortex (V2) and the anterior intraparietal sulcus (aIPS), are active during both MVF and VT [ 22 , 40 , 48 ]. Observed more closely, the aIPS, as the human homologue of the AIP in nonhuman primates, is part of the AON and links V2 and the PMC during the visuomotor processing [ 18 , 61 – 63 ].…”

Section: Discussionsupporting

confidence: 52%

See 1 more Smart Citation

Boosting the Motor Outcome of the Untrained Hand by Action Observation: Mirror Visual Feedback, Video Therapy, or Both Combined—What Is More Effective?

et al. 2018

View full text Add to dashboard Cite

Action observation (AO) allows access to a network that processes visuomotor and sensorimotor inputs and is believed to be involved in observational learning of motor skills. We conducted three consecutive experiments to examine the boosting effect of AO on the motor outcome of the untrained hand by either mirror visual feedback (MVF), video therapy (VT), or a combination of both. In the first experiment, healthy participants trained either with MVF or without mirror feedback while in the second experiment, participants either trained with VT or observed animal videos. In the third experiment, participants first observed video clips that were followed by either training with MVF or training without mirror feedback. The outcomes for the untrained hand were quantified by scores from five motor tasks. The results demonstrated that MVF and VT significantly increase the motor performance of the untrained hand by the use of AO. We found that MVF was the most effective approach to increase the performance of the target effector. On the contrary, the combination of MVF and VT turns out to be less effective looking from clinical perspective. The gathered results suggest that action-related motor competence with the untrained hand is acquired by both mirror-based and video-based AO.

show abstract

Section: Discussionsupporting

confidence: 74%

Section: Discussionsupporting

confidence: 52%

Boosting the Motor Outcome of the Untrained Hand by Action Observation: Mirror Visual Feedback, Video Therapy, or Both Combined—What Is More Effective?

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Some studies examined the effects of a mirror video, instead of an actual mirror, on efficiency of motor performance learning 60. It will be useful to verify whether MTr can improve motor function steadily, even though it can activate cortices 61–63. However, in this review we could not determine whether high skill level is a vital factor, and thus future studies should examine the effects of MTr on motor skill performance among athletes in the context of sports medicine and motor learning.…”

Section: Discussionmentioning

confidence: 98%

Effects of mirror training on motor performance in healthy individuals: a systematic review and meta-analysis

Chen

Wang

Bai

et al. 2019

BMJ Open Sport Exerc Med

View full text Add to dashboard Cite

ObjectiveMirror training (MTr) is a rehabilitation technique for patients with neurological diseases. There is no consensus on its effects on motor function in healthy individuals. This systematic review and meta-analysis considers the effects of MTr on motor function in healthy individuals.DesignThis is a systematic review and meta-analysis.Data sourcesWe searched six databases for studies assessing the effects of MTr on motor function in healthy individuals, published between January 1995 and December 2018. The Cochrane risk of bias was used to assess the quality of the studies. A meta-analysis was conducted with narrative synthesis.Eligibility criteria for selecting studiesEnglish-language randomised controlled trials reporting the behavioural results in healthy individuals were included.ResultsFourteen randomised controlled trials involving 538 healthy individuals were eligible. Two short-term studies showed MTr was inferior to passive vision pattern (standardised mean difference 0.57 (95% CI 0.06 to 1.08), I2=0%, p=0.03). The methods varied and there is limited evidence supporting the effectiveness of MTr compared with three alternative training patterns, with insufficient evidence to support analyses of age, skill level or hand dominance.ConclusionThe limited evidence that MTr affects motor performance in healthy individuals is weak and inconsistent among studies. It is unclear whether the effects of MTr on motor performance are more pronounced than the direct vision pattern, passive vision pattern or action observation. Further studies are needed to explore the short-term and long-term benefits of MTr and its effects on motor learning in healthy individuals.PROSPERO registration numberCRD42019128881.

show abstract

“…Excitingly, clinical evidences proved that action observation could improve the motor recovery in post-stroke patients [39][40][41][42][43][44][45][46]. It is possible that MNS activation leads to the "training" of spared motor cortex neurons and promote the reorganization or even axonal sprouting in the injured brain [47]. Moreover, the motor cortex activation by MNS leads to spinal cord inhibition, which prevents the execution of observed actions during watching [48].…”

Section: Watch Someone Walking and Able To Walk Again?mentioning

confidence: 99%

Activity-Dependent Neurorehabilitation Beyond Physical Trainings: “Mental Exercise” Through Mirror Neuron Activation

Yuan¹,

Chen²,

Shan³

et al. 2015

CNSNDDT

View full text Add to dashboard Cite

The activity dependent brain repair mechanism has been widely adopted in many types of neurorehabilitation. The activity leads to target specific and non-specific beneficial effects in different brain regions, such as the releasing of neurotrophic factors, modulation of the cytokines and generation of new neurons in adult hood. However physical exercise program clinically are limited to some of the patients with preserved motor functions; while many patients suffered from paralysis cannot make such efforts. Here the authors proposed the employment of mirror neurons system in promoting brain rehabilitation by "observation based stimulation". Mirror neuron system has been considered as an important basis for action understanding and learning by mimicking others. During the action observation, mirror neuron system mediated the direct activation of the same group of motor neurons that are responsible for the observed action. The effect is clear, direct, specific and evolutionarily conserved. Moreover, recent evidences hinted for the beneficial effects on stroke patients after mirror neuron system activation therapy. Finally some music-relevant therapies were proposed to be related with mirror neuron system.

show abstract

Mirror Observation of Finger Action Enhances Activity in Anterior Intraparietal Sulcus: A Functional Magnetic Resonance Imaging Study

Cited by 16 publications

References 24 publications

Boosting the Motor Outcome of the Untrained Hand by Action Observation: Mirror Visual Feedback, Video Therapy, or Both Combined—What Is More Effective?

Boosting the Motor Outcome of the Untrained Hand by Action Observation: Mirror Visual Feedback, Video Therapy, or Both Combined—What Is More Effective?

Effects of mirror training on motor performance in healthy individuals: a systematic review and meta-analysis

Activity-Dependent Neurorehabilitation Beyond Physical Trainings: “Mental Exercise” Through Mirror Neuron Activation

Contact Info

Product

Resources

About