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Schwell G, Kozol Z, Tarshansky D, Einat M, Frenkel-Toledo S. The effect of action observation combined with high-definition transcranial direct current stimulation on motor performance in healthy adults: A randomized controlled trial. Front Hum Neurosci 2023; 17:1126510. [PMID: 36936614 PMCID: PMC10014919 DOI: 10.3389/fnhum.2023.1126510] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/14/2023] [Indexed: 03/05/2023] Open
Abstract
Action observation (AO) can improve motor performance in humans, probably via the human mirror neuron system. In addition, there is some evidence that transcranial direct current stimulation (tDCS) can improve motor performance. However, it is yet to be determined whether AO combined with tDCS has an enhanced effect on motor performance. We investigated the effect of AO combined with high-definition tDCS (HD-tDCS) targeting the inferior parietal lobe (IPL) and inferior frontal gyrus (IFG), the main aggregates of the human mirror neuron system, on motor performance in healthy adults and compared the immediate vs. 24-h retention test effects (anodal electrodes were placed over these regions of interest). Sixty participants were randomly divided into three groups that received one of the following single-session interventions: (1) observation of a video clip that presented reaching movement sequences toward five lighted units + active HD-tDCS stimulation (AO + active HD-tDCS group); (2) observation of a video clip that presented the same reaching movement sequences + sham HD-tDCS stimulation (AO + sham HD-tDCS group); and (3) observation of a video clip that presented neutral movie while receiving sham stimulation (NM + sham HD-tDCS group). Subjects' reaching performance was tested before and immediately after each intervention and following 24 h. Subjects performed reaching movements toward units that were activated in the same order as the observed sequence during pretest, posttest, and retest. Occasionally, the sequence order was changed by beginning the sequence unexpectedly with a different activated unit. Outcome measures included mean Reaching Time and difference between the Reaching Time of the unexpected and expected reaching movements (Delta). In the posttest and retest, Reaching Time and Delta improved in the AO + sham HD-tDCS group compared to the NM + HD-sham tDCS group. In addition, at posttest, Delta improved in the AO + active HD-tDCS group compared to the NM + sham HD-tDCS group. It appears that combining a montage of active HD-tDCS, which targets the IPL and IFG, with AO interferes with the positive effects of AO alone on the performance of reaching movement sequences.
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Affiliation(s)
- Gidon Schwell
- Department of Physical Therapy, School of Health Sciences, Ariel University, Ariel, Israel
| | - Zvi Kozol
- Department of Physical Therapy, School of Health Sciences, Ariel University, Ariel, Israel
| | - David Tarshansky
- Department of Physical Therapy, School of Health Sciences, Ariel University, Ariel, Israel
| | - Moshe Einat
- Department of Electrical and Electronic Engineering, Ariel University, Ariel, Israel
| | - Silvi Frenkel-Toledo
- Department of Physical Therapy, School of Health Sciences, Ariel University, Ariel, Israel
- Department of Neurological Rehabilitation, Loewenstein Rehabilitation Medical Center, Ra’anana, Israel
- *Correspondence: Silvi Frenkel-Toledo,
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2
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Online and offline effects of transcranial alternating current stimulation of the primary motor cortex. Sci Rep 2021; 11:3854. [PMID: 33594133 PMCID: PMC7887242 DOI: 10.1038/s41598-021-83449-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/05/2021] [Indexed: 01/31/2023] Open
Abstract
Transcranial alternating current stimulation (tACS) is a non-invasive brain stimulation technique that allows interaction with endogenous cortical oscillatory rhythms by means of external sinusoidal potentials. The physiological mechanisms underlying tACS effects are still under debate. Whereas online (e.g., ongoing) tACS over the motor cortex induces robust state-, phase- and frequency-dependent effects on cortical excitability, the offline effects (i.e. after-effects) of tACS are less clear. Here, we explored online and offline effects of tACS in two single-blind, sham-controlled experiments. In both experiments we used neuronavigated transcranial magnetic stimulation (TMS) of the primary motor cortex (M1) as a probe to index changes of cortical excitability and delivered M1 tACS at 10 Hz (alpha), 20 Hz (beta) and sham (30 s of low-frequency transcranial random noise stimulation; tRNS). Corticospinal excitability was measured by single pulse TMS-induced motor evoked potentials (MEPs). tACS was delivered online in Experiment 1 and offline in Experiment 2. In Experiment 1, the increase of MEPs size was maximal with the 20 Hz stimulation, however in Experiment 2 neither the 10 Hz nor the 20 Hz stimulation induced tACS offline effects. These findings support the idea that tACS affects cortical excitability only during online application, at least when delivered on the scalp overlying M1, thereby contributing to the development of effective protocols that can be applied to clinical populations.
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3
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Fresnoza S, Christova M, Purgstaller S, Jehna M, Zaar K, Hoffermann M, Mahdy Ali K, Körner C, Gallasch E, von Campe G, Ischebeck A. Dissociating Arithmetic Operations in the Parietal Cortex Using 1 Hz Repetitive Transcranial Magnetic Stimulation: The Importance of Strategy Use. Front Hum Neurosci 2020; 14:271. [PMID: 32765240 PMCID: PMC7378795 DOI: 10.3389/fnhum.2020.00271] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 06/16/2020] [Indexed: 11/13/2022] Open
Abstract
The triple-code model (TCM) of number processing suggests the involvement of distinct parietal cortex areas in arithmetic operations: the bilateral horizontal segment of the intraparietal sulcus (hIPS) for arithmetic operations that require the manipulation of numerical quantities (e.g., subtraction) and the left angular gyrus (AG) for arithmetic operations that require the retrieval of answers from long-term memory (e.g., multiplication). Although neuropsychological, neuroimaging, and brain stimulation studies suggest the dissociation of these operations into distinct parietal cortex areas, the role of strategy (online calculation vs. retrieval) is not yet fully established. In the present study, we further explored the causal involvement of the left AG for multiplication and left hIPS for subtraction using a neuronavigated repetitive transcranial magnetic stimulation (rTMS) paradigm. Stimulation sites were determined based on an fMRI experiment using the same tasks. To account for the effect of strategy, participants were asked whether they used retrieval or calculation for each individual problem. We predicted that the stimulation of the left AG would selectively disrupt the retrieval of the solution to multiplication problems. On the other hand, stimulation of the left hIPS should selectively disrupt subtraction. Our results revealed that left AG stimulation was detrimental to the retrieval and online calculation of solutions for multiplication problems, as well as, the retrieval (but not online calculation) of the solutions to subtraction problems. In contrast, left hIPS stimulation had no detrimental effect on both operations regardless of strategy.
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Affiliation(s)
- Shane Fresnoza
- Institute of Psychology, University of Graz, Graz, Austria.,BioTechMed, Graz, Austria
| | - Monica Christova
- Otto Loewi Research Center, Physiology Section, Medical University of Graz, Graz, Austria.,Department of Physiotherapy, University of Applied Sciences FH-Joanneum Graz, Graz, Austria
| | | | - Margit Jehna
- Department of Radiology, Medical University of Graz, Graz, Austria
| | - Karla Zaar
- Department of Neurosurgery, Medical University of Graz, Graz, Austria
| | - Markus Hoffermann
- Department of Neurosurgery, Medical University of Graz, Graz, Austria
| | - Kariem Mahdy Ali
- Department of Neurosurgery, Medical University of Graz, Graz, Austria
| | - Christof Körner
- Institute of Psychology, University of Graz, Graz, Austria.,BioTechMed, Graz, Austria
| | - Eugen Gallasch
- BioTechMed, Graz, Austria.,Otto Loewi Research Center, Physiology Section, Medical University of Graz, Graz, Austria
| | - Gord von Campe
- Department of Neurosurgery, Medical University of Graz, Graz, Austria
| | - Anja Ischebeck
- Institute of Psychology, University of Graz, Graz, Austria.,BioTechMed, Graz, Austria
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4
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Noreika V, Windt JM, Kern M, Valli K, Salonen T, Parkkola R, Revonsuo A, Karim AA, Ball T, Lenggenhager B. Modulating dream experience: Noninvasive brain stimulation over the sensorimotor cortex reduces dream movement. Sci Rep 2020; 10:6735. [PMID: 32317714 PMCID: PMC7174293 DOI: 10.1038/s41598-020-63479-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/14/2020] [Indexed: 01/01/2023] Open
Abstract
Recently, cortical correlates of specific dream contents have been reported, such as the activation of the sensorimotor cortex during dreamed hand clenching. Yet, despite a close resemblance of such activation patterns to those seen during the corresponding wakeful behaviour, the causal mechanisms underlying specific dream contents remain largely elusive. Here, we aimed to investigate the causal role of the sensorimotor cortex in generating movement and bodily sensations during REM sleep dreaming. Following bihemispheric transcranial direct current stimulation (tDCS) or sham stimulation, guided by functional mapping of the primary motor cortex, naive participants were awakened from REM sleep and responded to a questionnaire on bodily sensations in dreams. Electromyographic (EMG) and electroencephalographic (EEG) recordings were used to quantify physiological changes during the preceding REM period. We found that tDCS, compared to sham stimulation, significantly decreased reports of dream movement, especially of repetitive actions. Other types of bodily experiences, such as tactile or vestibular sensations, were not affected by tDCS, confirming the specificity of stimulation effects to movement sensations. In addition, tDCS reduced EEG interhemispheric coherence in parietal areas and affected the phasic EMG correlation between both arms. These findings show that a complex temporal reorganization of the motor network co-occurred with the reduction of dream movement, revealing a link between central and peripheral motor processes and movement sensations of the dream self. tDCS over the sensorimotor cortex interferes with dream movement during REM sleep, which is consistent with a causal contribution to dream experience and has broader implications for understanding the neural basis of self-experience in dreams.
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Affiliation(s)
- Valdas Noreika
- Department of Psychology, University of Cambridge, CB2 3EB, Cambridge, United Kingdom.
- Department of Psychology and Speech-Language Pathology, University of Turku, 20014, Turku, Finland.
| | - Jennifer M Windt
- Department of Philosophy, Monash University, VIC 3800, Clayton, Australia
| | - Markus Kern
- Translational Neurotechnology Lab, University of Freiburg, 79106, Freiburg, Germany
| | - Katja Valli
- Department of Psychology and Speech-Language Pathology, University of Turku, 20014, Turku, Finland
- Department of Cognitive Neuroscience and Philosophy, University of Skövde, 54128, Skövde, Sweden
| | - Tiina Salonen
- Department of Psychology and Speech-Language Pathology, University of Turku, 20014, Turku, Finland
| | - Riitta Parkkola
- Department of Radiology, University and University Hospital of Turku, 20521, Turku, Finland
| | - Antti Revonsuo
- Department of Psychology and Speech-Language Pathology, University of Turku, 20014, Turku, Finland
- Department of Cognitive Neuroscience and Philosophy, University of Skövde, 54128, Skövde, Sweden
| | - Ahmed A Karim
- Department of Psychiatry and Psychotherapy, University of Tübingen, 72076, Tübingen, Germany
- Department of Psychology and Neuroscience, Jacobs University, 28759, Bremen, Germany
- Department of Health Psychology and Neurorehabilitation, SRH Mobile University, Riedlingen, Germany
| | - Tonio Ball
- Translational Neurotechnology Lab, University of Freiburg, 79106, Freiburg, Germany
| | - Bigna Lenggenhager
- Department of Psychology, University of Zurich, 8050, Zurich, Switzerland
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5
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Matsuo M, Iso N, Fujiwara K, Moriuchi T, Tanaka G, Honda S, Matsuda D, Higashi T. Cerebral haemodynamics during motor imagery of self-feeding with chopsticks: differences between dominant and non-dominant hand. Somatosens Mot Res 2019; 37:6-13. [PMID: 31813314 DOI: 10.1080/08990220.2019.1699044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Purpose: Motor imagery is defined as a dynamic state during which a subject mentally simulates a given action without overt movements. Our aim was to use near-infrared spectroscopy to investigate differences in cerebral haemodynamics during motor imagery of self-feeding with chopsticks using the dominant or non-dominant hand.Materials and methods: Twenty healthy right-handed people participated in this study. The motor imagery task involved eating sliced cucumber pickles using chopsticks with the dominant (right) or non-dominant (left) hand. Activation of regions of interest (pre-supplementary motor area, supplementary motor area, pre-motor area, pre-frontal cortex, and sensorimotor cortex was assessed.Results: Motor imagery vividness of the dominant hand tended to be significantly higher than that of the non-dominant hand. The time of peak oxygenated haemoglobin was significantly earlier in the right pre-frontal cortex than in the supplementary motor area and left pre-motor area. Haemodynamic correlations were detected in more regions of interest during dominant-hand motor imagery than during non-dominant-hand motor imagery.Conclusions: Haemodynamics might be affected by differences in motor imagery vividness caused by variations in motor manipulation.
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Affiliation(s)
- Moemi Matsuo
- Unit of Medical Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Center for Child Mental Health Care and Education, Nagasaki University, Nagasaki, Japan
| | - Naoki Iso
- Tokyo Kasei University, Saitama, Japan
| | - Kengo Fujiwara
- Unit of Medical Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Zeshinkai General Incorporated Association, Nagasaki Rehabilitation Hospital, Ginyamachi, Nagasaki, Japan
| | - Takefumi Moriuchi
- Unit of Medical Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Goro Tanaka
- Unit of Medical Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Sumihisa Honda
- Unit of Medical Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Daiki Matsuda
- Unit of Medical Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,The Japanese Red Cross, Nagasaki Genbaku Hospital, Nagasaki, Japan
| | - Toshio Higashi
- Unit of Medical Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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6
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State-Dependent Effects of Transcranial Oscillatory Currents on the Motor System during Action Observation. Sci Rep 2019; 9:12858. [PMID: 31492895 PMCID: PMC6731229 DOI: 10.1038/s41598-019-49166-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 08/16/2019] [Indexed: 12/24/2022] Open
Abstract
We applied transcranial alternating current stimulation (tACS) to the primary motor cortex (M1) at different frequencies during an index–thumb pinch-grip observation task. To estimate changes in the corticospinal output, we used the size of motor evoked potentials (MEPs) obtained by transcranial magnetic stimulation (TMS) of M1 using an online MRI-guided simultaneous TMS-tACS approach. The results of the beta-tACS confirm a non-selective increase in corticospinal excitability in subjects at rest; an increase was observed for both of the tested hand muscles, the first dorsal interosseous (FDI) and the abductor digiti minimi (ADM). However, during action observation of the pinch-grip movement, the increase of corticospinal excitability was only observed for the prime mover FDI muscle and took place during alpha-tACS, while gamma-tACS affected both the FDI and control muscle (ADM) responses. These phenomena likely reflect the hypothesis that the mu and gamma rhythms specifically index the downstream modulation of primary sensorimotor areas by engaging mirror neuron activity. The current neuromodulation approach confirms that tACS can be used to induce neurophysiologically detectable state-dependent enhancement effects, even in complex motor-cognitive tasks.
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7
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Cross-Modal Audiovisual Modulation of Corticospinal Motor Synergies in Professional Piano Players: A TMS Study during Motor Imagery. Neural Plast 2019; 2019:1328453. [PMID: 31093269 PMCID: PMC6476037 DOI: 10.1155/2019/1328453] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 02/25/2019] [Accepted: 03/12/2019] [Indexed: 11/18/2022] Open
Abstract
Transcranial magnetic stimulation was used to investigate corticospinal output changes in 10 professional piano players during motor imagery of triad chords in C major to be “mentally” performed with three fingers of the right hand (thumb, index, and little finger). Five triads were employed in the task; each composed by a stable 3rd interval (C4-E4) and a varying third note that could generate a 5th (G4), a 6th (A4), a 7th (B4), a 9th (D5), or a 10th (E5) interval. The 10th interval chord was thought to be impossible in actual execution for biomechanical reasons, as long as the thumb and the index finger remained fixed on the 3rd interval. Chords could be listened from loudspeakers, read on a staff, or listened and read at the same time while performing the imagery task. The corticospinal output progressively increased along with task demands in terms of mental representation of hand extension. The effects of audio, visual, or audiovisual musical stimuli were generally similar, unless motor imagery of kinetically impossible triads was required. A specific three-effector motor synergy was detected, governing the representation of the progressive mental extension of the hand. Results demonstrate that corticospinal facilitation in professional piano players can be modulated according to the motor plan, even if simply “dispatched” without actual execution. Moreover, specific muscle synergies, usually encoded in the motor cortex, emerge along the cross-modal elaboration of musical stimuli and in motor imagery of musical performances.
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8
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Edwards AE, Guven O, Furman MD, Arshad Q, Bronstein AM. Electroencephalographic Correlates of Continuous Postural Tasks of Increasing Difficulty. Neuroscience 2018; 395:35-48. [DOI: 10.1016/j.neuroscience.2018.10.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/13/2018] [Accepted: 10/23/2018] [Indexed: 12/27/2022]
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9
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Lanina AA, Feurra M, Gorbunova ES. No Effect of the Right Posterior Parietal Cortex tDCS in Dual-Target Visual Search. Front Psychol 2018; 9:2112. [PMID: 30483172 PMCID: PMC6240658 DOI: 10.3389/fpsyg.2018.02112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/12/2018] [Indexed: 11/22/2022] Open
Abstract
“Subsequent search misses” represent a decrease in accuracy at detecting a second target in a visual search task. In this study, we tested the possibility to modulate this effect via inhibition of the right posterior parietal cortex trough transcranial direct current stimulation (tDCS). The target stimuli were T-shapes presented among L-shaped distractors. The participant’s task was to detect targets or to report their absence. For each trial, targets could be represented by one high-salient target, one low-salient target, two different targets (one high salient and one low salient), two high salient targets, two low salient targets, or no targets at all (catch-trials). Offline tDCS was applied over the right (target site) or left (control site) posterior parietal cortex. Sham stimulation over the right posterior parietal cortex was included as a control (placebo). Stimulation lasted for 10 min. Afterward, participants were asked to perform the experiment. Our findings suggest that stimulation did not modulate any of the task conditions, suggesting potential limitation of the study: either tDCS was not enough powerful to modulate the task performance or the task was too easy to be modulated by stimulation.
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Affiliation(s)
- Alyona A Lanina
- Laboratory of Digital Interface User's Cognitive Psychology, National Research University Higher School of Economics, Moscow, Russia
| | - Matteo Feurra
- Centre for Cognition & Decision Making, Institute of Cognitive Neuroscience, National Research University Higher School of Economics, Moscow, Russia
| | - Elena S Gorbunova
- Laboratory of Digital Interface User's Cognitive Psychology, School of Psychology, National Research University Higher School of Economics, Moscow, Russia
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10
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Baxter BS, Edelman BJ, Sohrabpour A, He B. Anodal Transcranial Direct Current Stimulation Increases Bilateral Directed Brain Connectivity during Motor-Imagery Based Brain-Computer Interface Control. Front Neurosci 2017; 11:691. [PMID: 29270110 PMCID: PMC5725434 DOI: 10.3389/fnins.2017.00691] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Accepted: 11/23/2017] [Indexed: 01/29/2023] Open
Abstract
Transcranial direct current stimulation (tDCS) has been shown to affect motor and cognitive task performance and learning when applied to brain areas involved in the task. Targeted stimulation has also been found to alter connectivity within the stimulated hemisphere during rest. However, the connectivity effect of the interaction of endogenous task specific activity and targeted stimulation is unclear. This study examined the aftereffects of concurrent anodal high-definition tDCS over the left sensorimotor cortex with motor network connectivity during a one-dimensional EEG based sensorimotor rhythm brain-computer interface (SMR-BCI) task. Directed connectivity following anodal tDCS illustrates altered connections bilaterally between frontal and parietal regions, and these alterations occur in a task specific manner; connections between similar cortical regions are altered differentially during left and right imagination trials. During right-hand imagination following anodal tDCS, there was an increase in outflow from the left premotor cortex (PMC) to multiple regions bilaterally in the motor network and increased inflow to the stimulated sensorimotor cortex from the ipsilateral PMC and contralateral sensorimotor cortex. During left-hand imagination following anodal tDCS, there was increased outflow from the stimulated sensorimotor cortex to regions across the motor network. Significant correlations between connectivity and the behavioral measures of total correct trials and time-to-hit (TTH) correct trials were also found, specifically that the input to the left PMC correlated with decreased right hand imagination performance and that flow from the ipsilateral posterior parietal cortex (PPC) to midline sensorimotor cortex correlated with improved performance for both right and left hand imagination. These results indicate that tDCS interacts with task-specific endogenous activity to alter directed connectivity during SMR-BCI. In order to predict and maximize the targeted effect of tDCS, the interaction of stimulation with the dynamics of endogenous activity needs to be examined comprehensively and understood.
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Affiliation(s)
- Bryan S. Baxter
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Bradley J. Edelman
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Abbas Sohrabpour
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States
| | - Bin He
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States
- Institute for Engineering in Medicine, University of Minnesota, Minneapolis, MN, United States
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11
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Moulton E, Galléa C, Kemlin C, Valabregue R, Maier MA, Lindberg P, Rosso C. Cerebello-Cortical Differences in Effective Connectivity of the Dominant and Non-dominant Hand during a Visuomotor Paradigm of Grip Force Control. Front Hum Neurosci 2017; 11:511. [PMID: 29123475 PMCID: PMC5662901 DOI: 10.3389/fnhum.2017.00511] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/09/2017] [Indexed: 11/13/2022] Open
Abstract
Structural and functional differences are known to exist within the cortical sensorimotor networks with respect to the dominant vs. non-dominant hand. Similarly, the cerebellum, a key structure in the sensorimotor network with its cerebello-cortical connections, has been reported to respond differently when using the dominant vs. non-dominant hand. Several groups have already investigated causal interactions during diverse motor paradigms using effective connectivity but few have studied the larger visuomotor network, including key structures such as the parietal cortex and the cerebellum, with both hands. Moreover, the effect of force level on such interactions is still unclear. We therefore sought to determine the hemispheric asymmetries in the cerebello-cortical sensorimotor network in right-handers at two force levels (5% and 10% maximum voluntary contraction) for both hands. Cerebello-cortical modulations were investigated in 28 healthy, right-handed volunteers by determining the effective connectivity during a visuomotor task at two force levels under fMRI. A network was built consisting of the left and right primary motor (M1), ventral premotor (PMv) and posterior parietal cortices (PPC), in addition to the supplementary motor area (SMA), and the ipsilateral cerebellum (Cer) to the hand performing the motor task. Task performance (precision of isometric grip force tracking) did not differ between hands, nor did task-related activations in the sensorimotor areas apart from the contralateral primary motor cortex. However, during visuomotor control of the non-dominant hand, connectivity analysis revealed causal modulations between (i) the ipsilateral cerebellum and SMA, and (ii) the ipsilatearl cerebellum and contralateral PPC, which was not the case when using the dominant hand. These cerebello-cortical modulations for the non-dominant hand were more present at the higher of the two force levels. We conclude that precision force generation executed with the non-dominant hand, compared to the dominant hand, may require enhanced cerebello-cortical interaction to ensure equivalent left-right task performance.
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Affiliation(s)
- Eric Moulton
- Sorbonne Universits, UPMC Univ Paris 06, Inserm U1127, Centre National de la Recherche Scientifique UMR 7225, UM 75, ICM, Paris, France
| | - Cécile Galléa
- Sorbonne Universits, UPMC Univ Paris 06, Inserm U1127, Centre National de la Recherche Scientifique UMR 7225, UM 75, ICM, Paris, France
| | - Claire Kemlin
- Sorbonne Universits, UPMC Univ Paris 06, Inserm U1127, Centre National de la Recherche Scientifique UMR 7225, UM 75, ICM, Paris, France
| | | | - Marc A Maier
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,FR3636, Centre National de la Recherche Scientifique, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Pavel Lindberg
- FR3636, Centre National de la Recherche Scientifique, Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,INSERM U894, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Charlotte Rosso
- Sorbonne Universits, UPMC Univ Paris 06, Inserm U1127, Centre National de la Recherche Scientifique UMR 7225, UM 75, ICM, Paris, France.,AP-HP, Urgences Cérébro-Vasculaires, Hôpital Pitié-Salpłtrire, Paris, France
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12
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Bardi L, Gheza D, Brass M. TPJ-M1 interaction in the control of shared representations: New insights from tDCS and TMS combined. Neuroimage 2017; 146:734-740. [DOI: 10.1016/j.neuroimage.2016.10.050] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/20/2016] [Accepted: 10/31/2016] [Indexed: 12/13/2022] Open
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13
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Repetition and variation in motor practice: A review of neural correlates. Neurosci Biobehav Rev 2015; 57:132-41. [DOI: 10.1016/j.neubiorev.2015.08.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 07/27/2015] [Accepted: 08/17/2015] [Indexed: 11/19/2022]
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14
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Nitsche MA, Polania R, Kuo MF. Transcranial Direct Current Stimulation: Modulation of Brain Pathways and Potential Clinical Applications. Brain Stimul 2015. [DOI: 10.1002/9781118568323.ch13] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
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15
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Volz MS, Suarez-Contreras V, Portilla ALS, Illigens B, Bermpohl F, Fregni F. Movement observation-induced modulation of pain perception and motor cortex excitability. Clin Neurophysiol 2015; 126:1204-1211. [DOI: 10.1016/j.clinph.2014.09.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 09/14/2014] [Accepted: 09/16/2014] [Indexed: 11/29/2022]
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16
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Filmer HL, Dux PE, Mattingley JB. Applications of transcranial direct current stimulation for understanding brain function. Trends Neurosci 2014; 37:742-53. [PMID: 25189102 DOI: 10.1016/j.tins.2014.08.003] [Citation(s) in RCA: 293] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 08/08/2014] [Accepted: 08/12/2014] [Indexed: 12/29/2022]
Affiliation(s)
- Hannah L Filmer
- School of Psychology, The University of Queensland, St Lucia, QLD 4072, Australia.
| | - Paul E Dux
- School of Psychology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Jason B Mattingley
- School of Psychology, The University of Queensland, St Lucia, QLD 4072, Australia; Queensland Brain Institute, The University of Queensland, St Lucia QLD 4072 Australia
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17
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Sartori L, Begliomini C, Panozzo G, Garolla A, Castiello U. The left side of motor resonance. Front Hum Neurosci 2014; 8:702. [PMID: 25249966 PMCID: PMC4158788 DOI: 10.3389/fnhum.2014.00702] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 08/21/2014] [Indexed: 11/25/2022] Open
Abstract
Motor resonance is defined as the internal activation of an observer's motor system, specifically attuned to the perceived movement. In social contexts, however, different patterns of observed and executed muscular activation are frequently required. This is the case, for instance, of seeing a key offered with a precision grip and received by opening the hand. Novel evidence suggests that compatibility effects in motor resonance can be altered by social response preparation. What is not known is how handedness modulates this effect. The present study aimed at determining how a left- and a right-handed actor grasping an object and then asking for a complementary response influences corticospinal activation in left- and right-handers instructed to observe the scene. Transcranial magnetic stimulation (TMS)-induced motor evoked potentials (MEPs) were thus recorded from the dominant hands of left- and right-handers. Interestingly, requests posed by the right-handed actor induced a motor activation in the participants' respective dominant hands, suggesting that left-handers tend to mirror right-handers with their most efficient hand. Whereas requests posed by the left-handed actor activated the anatomically corresponding muscles (i.e., left hand) in all the participants, right-handers included. Motor resonance effects classically reported in the literature were confirmed when observing simple grasping actions performed by the right-handed actor. These findings indicate that handedness influences both congruent motor resonance and complementary motor preparation to observed actions.
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Affiliation(s)
- Luisa Sartori
- Dipartimento di Psicologia Generale, Università degli Studi di PadovaPadova, Italy
- Cognitive Neuroscience Center, Università degli Studi di PadovaPadova, Italy
| | - Chiara Begliomini
- Dipartimento di Psicologia Generale, Università degli Studi di PadovaPadova, Italy
- Cognitive Neuroscience Center, Università degli Studi di PadovaPadova, Italy
| | - Giulia Panozzo
- Dipartimento di Psicologia Generale, Università degli Studi di PadovaPadova, Italy
| | - Alice Garolla
- Dipartimento di Psicologia Generale, Università degli Studi di PadovaPadova, Italy
| | - Umberto Castiello
- Dipartimento di Psicologia Generale, Università degli Studi di PadovaPadova, Italy
- Cognitive Neuroscience Center, Università degli Studi di PadovaPadova, Italy
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18
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Rizzolatti G, Cattaneo L, Fabbri-Destro M, Rozzi S. Cortical Mechanisms Underlying the Organization of Goal-Directed Actions and Mirror Neuron-Based Action Understanding. Physiol Rev 2014; 94:655-706. [PMID: 24692357 DOI: 10.1152/physrev.00009.2013] [Citation(s) in RCA: 280] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Our understanding of the functions of motor system evolved remarkably in the last 20 years. This is the consequence not only of an increase in the amount of data on this system but especially of a paradigm shift in our conceptualization of it. Motor system is not considered anymore just a “producer” of movements, as it was in the past, but a system crucially involved in cognitive functions. In the present study we review the data on the cortical organization underlying goal-directed actions and action understanding. Our review is subdivided into two major parts. In the first part, we review the anatomical and functional organization of the premotor and parietal areas of monkeys and humans. We show that the parietal and frontal areas form circuits devoted to specific motor functions. We discuss, in particular, the visuo-motor transformation necessary for reaching and for grasping. In the second part we show how a specific neural mechanism, the mirror mechanism, is involved in understanding the action and intention of others. This mechanism is located in the same parieto-frontal circuits that mediate goal-directed actions. We conclude by indicating future directions for studies on the mirror mechanism and suggest some major topics for forthcoming research.
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Affiliation(s)
- Giacomo Rizzolatti
- Department of Neuroscience, University of Parma, Parma, Italy; Center for Mind/Brain Sciences, University of Trento, Trento, Italy; and Brain Center for Motor and Social Cognition, Italian Institute of Technology, Parma, Italy
| | - Luigi Cattaneo
- Department of Neuroscience, University of Parma, Parma, Italy; Center for Mind/Brain Sciences, University of Trento, Trento, Italy; and Brain Center for Motor and Social Cognition, Italian Institute of Technology, Parma, Italy
| | - Maddalena Fabbri-Destro
- Department of Neuroscience, University of Parma, Parma, Italy; Center for Mind/Brain Sciences, University of Trento, Trento, Italy; and Brain Center for Motor and Social Cognition, Italian Institute of Technology, Parma, Italy
| | - Stefano Rozzi
- Department of Neuroscience, University of Parma, Parma, Italy; Center for Mind/Brain Sciences, University of Trento, Trento, Italy; and Brain Center for Motor and Social Cognition, Italian Institute of Technology, Parma, Italy
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19
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Sartori L, Betti S, Castiello U. Corticospinal excitability modulation during action observation. J Vis Exp 2013:51001. [PMID: 24429584 PMCID: PMC4093910 DOI: 10.3791/51001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
This study used the transcranial magnetic stimulation/motor evoked potential (TMS/MEP) technique to pinpoint when the automatic tendency to mirror someone else's action becomes anticipatory simulation of a complementary act. TMS was delivered to the left primary motor cortex corresponding to the hand to induce the highest level of MEP activity from the abductor digiti minimi (ADM; the muscle serving little finger abduction) as well as the first dorsal interosseus (FDI; the muscle serving index finger flexion/extension) muscles. A neuronavigation system was used to maintain the position of the TMS coil, and electromyographic (EMG) activity was recorded from the right ADM and FDI muscles. Producing original data with regard to motor resonance, the combined TMS/MEP technique has taken research on the perception-action coupling mechanism a step further. Specifically, it has answered the questions of how and when observing another person's actions produces motor facilitation in an onlooker's corresponding muscles and in what way corticospinal excitability is modulated in social contexts.
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Affiliation(s)
- Luisa Sartori
- Dipartimento di Psicologia Generale, Universita degli Studi di Padova
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20
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State-dependent effects of transcranial oscillatory currents on the motor system: what you think matters. J Neurosci 2013; 33:17483-9. [PMID: 24174681 DOI: 10.1523/jneurosci.1414-13.2013] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Imperceptible transcranial alternating current stimulation (tACS) changes the endogenous cortical oscillatory activity in a frequency-specific manner. In the human motor system, tACS coincident with the idling beta rhythm of the quiescent motor cortex increased the corticospinal output. We reasoned that changing the initial state of the brain (i.e., from quiescence to a motor imagery task that desynchronizes the local beta rhythm) might also change the susceptibility of the corticospinal system to resonance effects induced by beta-tACS. We tested this hypothesis by delivering tACS at different frequencies (theta, alpha, beta, and gamma) on the primary motor cortex at rest and during motor imagery. Motor-evoked potentials (MEPs) were obtained by transcranial magnetic stimulation (TMS) on the primary motor cortex with an online-navigated TMS-tACS setting. During motor imagery, the increase of corticospinal excitability was maximal with theta-tACS, likely reflecting a reinforcement of working memory processes required to mentally process and "execute" the cognitive task. As expected, the maximal MEPs increase with subjects at rest was instead obtained with beta-tACS, substantiating previous evidence. This dissociation provides new evidence of state and frequency dependency of tACS effects on the motor system and helps discern the functional role of different oscillatory frequencies of this brain region. These findings may be relevant for rehabilitative neuromodulatory interventions.
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21
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Vogt S, Di Rienzo F, Collet C, Collins A, Guillot A. Multiple roles of motor imagery during action observation. Front Hum Neurosci 2013; 7:807. [PMID: 24324428 PMCID: PMC3839009 DOI: 10.3389/fnhum.2013.00807] [Citation(s) in RCA: 158] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 11/06/2013] [Indexed: 11/13/2022] Open
Abstract
Over the last 20 years, the topics of action observation (AO) and motor imagery (MI) have been largely studied in isolation from each other, despite the early integrative account by Jeannerod (1994, 2001). Recent neuroimaging studies demonstrate enhanced cortical activity when AO and MI are performed concurrently ("AO+MI"), compared to either AO or MI performed in isolation. These results indicate the potentially beneficial effects of AO+MI, and they also demonstrate that the underlying neurocognitive processes are partly shared. We separately review the evidence for MI and AO as forms of motor simulation, and present two quantitative literature analyses that indeed indicate rather little overlap between the two bodies of research. We then propose a spectrum of concurrent AO+MI states, from congruent AO+MI where the contents of AO and MI widely overlap, over coordinative AO+MI, where observed and imagined action are different but can be coordinated with each other, to cases of conflicting AO+MI. We believe that an integrative account of AO and MI is theoretically attractive, that it should generate novel experimental approaches, and that it can also stimulate a wide range of applications in sport, occupational therapy, and neurorehabilitation.
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Affiliation(s)
- Stefan Vogt
- Department of Psychology, Lancaster University Lancaster, UK
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22
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Evidence for metaplasticity in the human visual cortex. J Neural Transm (Vienna) 2013; 121:221-31. [PMID: 24162796 DOI: 10.1007/s00702-013-1104-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 10/14/2013] [Indexed: 10/26/2022]
Abstract
The threshold and direction of excitability changes induced by low- and high-frequency repetitive transcranial magnetic stimulation (rTMS) in the primary motor cortex can be effectively reverted by a preceding session of transcranial direct current stimulation (tDCS), a phenomenon referred to as "metaplasticity". Here, we used a combined tDCS-rTMS protocol and visual evoked potentials (VEPs) in healthy subjects to provide direct electrophysiological evidence for metaplasticity in the human visual cortex. Specifically, we evaluated changes in VEPs at two different contrasts (90 and 20 %) before and at different time points after the application of anodal or cathodal tDCS to occipital cortex (i.e., priming), followed by an additional conditioning with low- or high-frequency rTMS. Anodal tDCS increased the amplitude of VEPs and this effect was paradoxically reverted by applying high-frequency (5 Hz), conventionally excitatory rTMS (p < 0.0001). Similarly, cathodal tDCS led to a decrease in VEPs amplitude, which was reverted by a subsequent application of conventionally inhibitory, 1 Hz rTMS (p < 0.0001). Similar changes were observed for both the N1 and P1 component of the VEP. There were no significant changes in resting motor threshold values (p > 0.5), confirming the spatial selectivity of our conditioning protocol. Our findings show that preconditioning primary visual area excitability with tDCS can modulate the direction and strength of plasticity induced by subsequent application of 1 or 5 Hz rTMS. These data indicate the presence of mechanisms of metaplasticity that keep synaptic strengths within a functional dynamic range in the human visual cortex.
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23
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Notturno F, Marzetti L, Pizzella V, Uncini A, Zappasodi F. Local and remote effects of transcranial direct current stimulation on the electrical activity of the motor cortical network. Hum Brain Mapp 2013; 35:2220-32. [PMID: 23913800 DOI: 10.1002/hbm.22322] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Revised: 03/27/2013] [Accepted: 04/15/2013] [Indexed: 11/06/2022] Open
Abstract
We systematically investigated the effects of cathodal and anodal Transcranial Direct Current Stimulation (CtDCS, AtDCS) on the electric activity of primary motor cortex during a motor task. High-density electroencephalography was used to define the spatial diffusion of tDCS after effects. Ten healthy subjects performed a finger tapping task with the right hand before and after three separate sessions of 20 minutes of Sham, AtDCS or CtDCS over left primary motor cortex (M1). During movement, we found an increment of low alpha band Event-Related Desynchronization (ERD) in bilateral central, frontal areas and in the left inferior parietal region, as well as an increment of beta ERD in fronto-central and parieto-occipital regions, after AtDCs compared to Sham and CtDCS. In the rest pre-movement period, after Sham as well as AtDCS, we documented an increment of low alpha band power over the course of pre- and post-stimulation recording sessions, localized in the sensorimotor and parieto-occipital regions. On the contrary, after CtDCS no increment of low alpha power was found. Finally beta band coherence among signals from left sensorimotor cortex and activity of bilateral parietal, occipital and right frontal regions was higher after AtDCS compared with Sham condition. Similarly, theta coherence with parietal and frontal regions was enhanced after AtDCS. We hypothesize that the local modulation of membrane polarization, as well as long-lasting synaptic modification induced by tDCS over M1, could result in changes of both local band power and functional architecture of the motor network.
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Affiliation(s)
- Francesca Notturno
- Department of Neuroscience and Imaging, University of Chieti, Chieti, Italy
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24
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Hétu S, Grégoire M, Saimpont A, Coll MP, Eugène F, Michon PE, Jackson PL. The neural network of motor imagery: An ALE meta-analysis. Neurosci Biobehav Rev 2013; 37:930-49. [PMID: 23583615 DOI: 10.1016/j.neubiorev.2013.03.017] [Citation(s) in RCA: 525] [Impact Index Per Article: 47.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 03/21/2013] [Accepted: 03/22/2013] [Indexed: 01/04/2023]
Affiliation(s)
- Sébastien Hétu
- Virginia Tech Carilion Research Institute, Roanoke, VA, USA
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25
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Cowey A, Alexander I, Ellison A. Modulation of cortical excitability can speed up blindsight but not improve it. Exp Brain Res 2012; 224:469-75. [PMID: 23229773 DOI: 10.1007/s00221-012-3327-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 10/26/2012] [Indexed: 11/28/2022]
Abstract
Blindsight has been widely investigated and its properties documented. One property still debated and contested is the puzzling absence of phenomenal visual percepts of visual stimuli that can be detected with perfect accuracy. We investigated the possibility that phenomenal visual percepts of exogenous visual stimuli in patient GY might be induced by using transcranial direct current stimulation. High contrast and low contrast stimuli were presented as a moving grating in his blind hemifield. When left area MT/V5 was anodally stimulated during the presentation of high-contrast gratings, he never reported a phenomenal percept of a moving grating but showed perfect blindsight performance. When applied along with low contrast gratings, for which accuracy was titrated to 60-70 %, performance did not improve but responses were significantly faster. Cathodal stimulation had no effect. Results are explained in the framework of GY's reorganized cortical connexions and oscillatory patterns known to be involved in awareness in GY. The apparent presence of phenomenal visual percepts in earlier studies is shown to be a semantic confusion about what he means when he says that he sees in his blind field.
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Affiliation(s)
- Alan Cowey
- Department of Experimental Psychology, Oxford University, South Parks Road, Oxford OX1 3UD, UK
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26
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Influence of somatosensory input on corticospinal excitability during motor imagery. Neurosci Lett 2012; 514:127-30. [DOI: 10.1016/j.neulet.2012.02.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 02/20/2012] [Accepted: 02/22/2012] [Indexed: 11/22/2022]
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27
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Mizuguchi N, Nakata H, Uchida Y, Kanosue K. Motor imagery and sport performance. ACTA ACUST UNITED AC 2012. [DOI: 10.7600/jpfsm.1.103] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Nobuaki Mizuguchi
- Laboratory of Sport Neuroscience, Graduate School of Sport Sciences, Waseda University
- Japan Society for the Promotion of Science
| | - Hiroki Nakata
- Laboratory of Sport Neuroscience, Faculty of Sport Sciences, Waseda University
| | - Yusuke Uchida
- Laboratory of Sport Neuroscience, Faculty of Sport Sciences, Waseda University
| | - Kazuyuki Kanosue
- Laboratory of Sport Neuroscience, Faculty of Sport Sciences, Waseda University
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