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Akalu Y, Tallent J, Frazer AK, Siddique U, Rostami M, Vallance P, Howatson G, Walker S, Kidgell DJ. Strength-trained adults demonstrate greater corticoreticular activation versus untrained controls. Eur J Neurosci 2024; 59:2336-2352. [PMID: 38419404 DOI: 10.1111/ejn.16297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 03/02/2024]
Abstract
The rapid increase in strength following strength-training involves neural adaptations, however, their specific localisation remains elusive. Prior focus on corticospinal responses prompts this study to explore the understudied cortical/subcortical adaptations, particularly cortico-reticulospinal tract responses, comparing healthy strength-trained adults to untrained peers. Fifteen chronically strength-trained individuals (≥2 years of training, mean age: 24 ± 7 years) were compared with 11 age-matched untrained participants (mean age: 26 ± 8 years). Assessments included maximal voluntary force (MVF), corticospinal excitability using transcranial magnetic stimulation (TMS), spinal excitability (cervicomedullary stimulation), voluntary activation (VA) and reticulospinal tract (RST) excitability, utilizing StartReact responses and ipsilateral motor-evoked potentials (iMEPs) for the flexor carpi radialis muscle. Trained participants had higher normalized MVF (6.4 ± 1.1 N/kg) than the untrained participants (4.8 ± 1.3 N/kg) (p = .003). Intracortical facilitation was higher in the strength-trained group (156 ± 49%) (p = .02), along with greater VA (98 ± 3.2%) (p = .002). The strength-trained group displayed reduced short-interval-intracortical inhibition (88 ± 8.0%) compared with the untrained group (69 ± 17.5%) (p < .001). Strength-trained individuals exhibited a greater normalized rate of force development (38.8 ± 10.1 N·s-1/kg) (p < .009), greater reticulospinal gain (2.5 ± 1.4) (p = .02) and higher ipsilateral-to-contralateral MEP ratios compared with the untrained group (p = .03). Strength-trained individuals displayed greater excitability within the intrinsic connections of the primary motor cortex and the RST. These results suggest greater synaptic input from the descending cortico-reticulospinal tract to α-motoneurons in strength-trained individuals, thereby contributing to the observed increase in VA and MVF.
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Affiliation(s)
- Yonas Akalu
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
- Department of Human Physiology, School of Medicine, University of Gondar, Gondar, Ethiopia
| | - Jamie Tallent
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester, UK
| | - Ashlyn K Frazer
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
| | - Ummatul Siddique
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
| | - Mohamad Rostami
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
| | - Patrick Vallance
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
| | - Glyn Howatson
- Department of Sport, Exercise and Rehabilitation, Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
- Water Research Group, North-West University, Potchefstroom, South Africa
| | - Simon Walker
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Dawson J Kidgell
- Monash Exercise Neuroplasticity Research Unit, Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Frankston, Victoria, Australia
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Woodhead A, Rainer C, Hill J, Murphy CP, North JS, Kidgell D, Tallent J. Corticospinal and spinal responses following a single session of lower limb motor skill and resistance training. Eur J Appl Physiol 2024:10.1007/s00421-024-05464-9. [PMID: 38532177 DOI: 10.1007/s00421-024-05464-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/01/2024] [Indexed: 03/28/2024]
Abstract
Prior studies suggest resistance exercise as a potential form of motor learning due to task-specific corticospinal responses observed in single sessions of motor skill and resistance training. While existing literature primarily focuses on upper limb muscles, revealing a task-dependent nature in eliciting corticospinal responses, our aim was to investigate such responses after a single session of lower limb motor skill and resistance training. Twelve participants engaged in a visuomotor force tracking task, self-paced knee extensions, and a control task. Corticospinal, spinal, and neuromuscular responses were measured using transcranial magnetic stimulation (TMS) and peripheral nerve stimulation (PNS). Assessments occurred at baseline, immediately post, and at 30-min intervals over two hours. Force steadiness significantly improved in the visuomotor task (P < 0.001). Significant fixed-effects emerged between conditions for corticospinal excitability, corticospinal inhibition, and spinal excitability (all P < 0.001). Lower limb motor skill training resulted in a greater corticospinal excitability compared to resistance training (mean difference [MD] = 35%, P < 0.001) and control (MD; 37%, P < 0.001). Motor skill training resulted in a lower corticospinal inhibition compared to control (MD; - 10%, P < 0.001) and resistance training (MD; - 9%, P < 0.001). Spinal excitability was lower following motor skill training compared to control (MD; - 28%, P < 0.001). No significant fixed effect of Time or Time*Condition interactions were observed. Our findings highlight task-dependent corticospinal responses in lower limb motor skill training, offering insights for neurorehabilitation program design.
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Affiliation(s)
- Alex Woodhead
- Faculty of Sport, Technology and Health Sciences, St. Mary's University, Twickenham, Middlesex, TW1 4SX, UK.
| | - Christopher Rainer
- Faculty of Sport, Technology and Health Sciences, St. Mary's University, Twickenham, Middlesex, TW1 4SX, UK
| | - Jessica Hill
- Faculty of Sport, Technology and Health Sciences, St. Mary's University, Twickenham, Middlesex, TW1 4SX, UK
| | - Colm P Murphy
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Jamie S North
- Faculty of Sport, Technology and Health Sciences, St. Mary's University, Twickenham, Middlesex, TW1 4SX, UK
| | - Dawson Kidgell
- Monash Exercise Neuroplasticity Research Unit, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, VIC, 3199, Australia
| | - Jamie Tallent
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Wivenhoe Park, Colchester, UK
- Monash Exercise Neuroplasticity Research Unit, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, VIC, 3199, Australia
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3
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Kogan E, Lu J, Zuo Y. Cortical circuit dynamics underlying motor skill learning: from rodents to humans. Front Mol Neurosci 2023; 16:1292685. [PMID: 37965043 PMCID: PMC10641381 DOI: 10.3389/fnmol.2023.1292685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 10/11/2023] [Indexed: 11/16/2023] Open
Abstract
Motor learning is crucial for the survival of many animals. Acquiring a new motor skill involves complex alterations in both local neural circuits in many brain regions and long-range connections between them. Such changes can be observed anatomically and functionally. The primary motor cortex (M1) integrates information from diverse brain regions and plays a pivotal role in the acquisition and refinement of new motor skills. In this review, we discuss how motor learning affects the M1 at synaptic, cellular, and circuit levels. Wherever applicable, we attempt to relate and compare findings in humans, non-human primates, and rodents. Understanding the underlying principles shared by different species will deepen our understanding of the neurobiological and computational basis of motor learning.
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Affiliation(s)
| | | | - Yi Zuo
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA, United States
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4
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Woodhead A, North JS, Hill J, Murphy CP, Kidgell DJ, Tallent J. Corticospinal and spinal adaptations following lower limb motor skill training: a meta-analysis with best evidence synthesis. Exp Brain Res 2023; 241:807-824. [PMID: 36740653 DOI: 10.1007/s00221-023-06563-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 01/21/2023] [Indexed: 02/07/2023]
Abstract
Motor skill training alters the human nervous system; however, lower limb motor tasks have been less researched compared to upper limb tasks. This meta-analysis with best evidence synthesis aimed to determine the cortical and subcortical responses that occur following lower limb motor skill training, and whether these responses are accompanied by improvements in motor performance. Following a literature search that adhered to the PRISMA guidelines, data were extracted and analysed from six studies (n = 172) for the meta-analysis, and 11 studies (n = 257) were assessed for the best evidence synthesis. Pooled data indicated that lower limb motor skill training increased motor performance, with a standardised mean difference (SMD) of 1.09 being observed. However, lower limb motor skill training had no effect on corticospinal excitability (CSE), Hoffmann's reflex (H-reflex) or muscle compound action potential (MMAX) amplitude. The best evidence synthesis found strong evidence for improved motor performance and reduced short-interval cortical inhibition (SICI) following lower limb motor skill training, with conflicting evidence towards the modulation of CSE. Taken together, this review highlights the need for further investigation on how motor skill training performed with the lower limb musculature can modulate corticospinal responses. This will also help us to better understand whether these neuronal measures are underpinning mechanisms that support an improvement in motor performance.
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Affiliation(s)
- Alex Woodhead
- Faculty of Sport, Allied Health and Performance Science, St. Mary's University, Middlesex, Twickenham, TW1 4SX, UK.
| | - Jamie S North
- Faculty of Sport, Allied Health and Performance Science, St. Mary's University, Middlesex, Twickenham, TW1 4SX, UK
| | - Jessica Hill
- Faculty of Sport, Allied Health and Performance Science, St. Mary's University, Middlesex, Twickenham, TW1 4SX, UK
| | - Colm P Murphy
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Dawson J Kidgell
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, VIC, 3199, Australia
| | - Jamie Tallent
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, VIC, 3199, Australia.,School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Wivenhoe Park, Colchester, UK
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5
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Cousineau J, Plateau V, Baufreton J, Le Bon-Jégo M. Dopaminergic modulation of primary motor cortex: From cellular and synaptic mechanisms underlying motor learning to cognitive symptoms in Parkinson's disease. Neurobiol Dis 2022; 167:105674. [PMID: 35245676 DOI: 10.1016/j.nbd.2022.105674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 11/16/2022] Open
Abstract
The primary motor cortex (M1) is crucial for movement execution, especially dexterous ones, but also for cognitive functions like motor learning. The acquisition of motor skills to execute dexterous movements requires dopamine-dependent and -independent plasticity mechanisms within M1. In addition to the basal ganglia, M1 is disturbed in Parkinson's disease (PD). However, little is known about how the lack of dopamine (DA), characteristic of PD, directly or indirectly impacts M1 circuitry. Here we review data from studies of PD patients and the substantial research in non-human primate and rodent models of DA depletion. These models enable us to understand the importance of DA in M1 physiology at the behavioral, network, cellular, and synaptic levels. We first summarize M1 functions and neuronal populations in mammals. We then look at the origin of M1 DA and the cellular location of its receptors and explore the impact of DA loss on M1 physiology, motor, and executive functions. Finally, we discuss how PD treatments impact M1 functions.
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6
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Intracortical facilitation and inhibition in human primary motor cortex during motor skill acquisition. Exp Brain Res 2022; 240:3289-3304. [PMID: 36308563 PMCID: PMC9678989 DOI: 10.1007/s00221-022-06496-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 10/20/2022] [Indexed: 01/15/2023]
Abstract
The primary motor cortex (M1) is critical for movement execution, but its role in motor skill acquisition remains elusive. Here, we examine the role of M1 intracortical circuits during skill acquisition. Paired-pulse transcranial magnetic stimulation (TMS) paradigms of short-interval intracortical facilitation (SICF) and inhibition (SICI) were used to assess excitatory and inhibitory circuits, respectively. We hypothesised that intracortical facilitation and inhibition circuits in M1 would be modulated to support acquisition of a novel visuomotor skill. Twenty-two young, neurologically healthy adults trained with their nondominant hand on a skilled and non-skilled sequential visuomotor isometric finger abduction task. Electromyographic recordings were obtained from the nondominant first dorsal interosseous (FDI) muscle. Corticomotor excitability, SICF, and SICI were examined before, at the midway point, and after the 10-block motor training. SICI was assessed using adaptive threshold-hunting procedures. Task performance improved after the skilled, but not non-skilled, task training, which likely reflected the increase in movement speed during training. The amplitudes of late SICF peaks were modulated with skilled task training. There was no modulation of the early SICF peak, SICI, and corticomotor excitability with either task training. There was also no association between skill acquisition and SICF or SICI. The findings indicate that excitatory circuitries responsible for the generation of late SICF peaks, but not the early SICF peak, are modulated in motor skill acquisition for a sequential visuomotor isometric finger abduction task.
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7
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Paraouty N, Mowery TM. Early Sensory Deprivation Leads to Differential Inhibitory Changes in the Striatum During Learning. Front Neural Circuits 2021; 15:670858. [PMID: 34122017 PMCID: PMC8194259 DOI: 10.3389/fncir.2021.670858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 04/29/2021] [Indexed: 11/13/2022] Open
Abstract
The corticostriatal circuit has been identified as a vital pathway for associative learning. However, how learning is implemented when the sensory striatum is permanently impaired remains unclear. Using chemogenetic techniques to suppress layer five auditory cortex (AC) input to the auditory striatum, learning of a sound discrimination task was significantly impacted in freely moving Mongolian gerbils, in particular when this suppression occurs early on during learning. Whole-cell recordings sampled throughout learning revealed a transient reduction in postsynaptic (GABAA) inhibition in both striatal D1 and D2 cells in normal-hearing gerbils during task acquisition. In contrast, when the baseline striatal inhibitory strengths and firing rates were permanently reduced by a transient period of developmental sensory deprivation, learning was accompanied by augmented inhibition and increased firing rates. Direct manipulation of striatal inhibition in vivo and in vitro revealed a key role of the transient inhibitory changes in task acquisition. Together, these results reveal a flexible corticostriatal inhibitory synaptic plasticity mechanism that accompanies associative auditory learning.
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Affiliation(s)
- Nihaad Paraouty
- Center for Neural Science, New York University, New York, NY, United States
| | - Todd M Mowery
- Department of Otolaryngology, Head and Neck Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, United States.,Rutgers Brain Health Institute, Rutgers University, New Brunswick, NJ, United States
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8
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Matsumoto T, Watanabe T, Kuwabara T, Yunoki K, Chen X, Kubo N, Kirimoto H. Excitability of the Ipsilateral Primary Motor Cortex During Unilateral Goal-Directed Movement. Front Hum Neurosci 2021; 15:617146. [PMID: 33679346 PMCID: PMC7925409 DOI: 10.3389/fnhum.2021.617146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 01/28/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction Previous transcranial magnetic stimulation (TMS) studies have revealed that the activity of the primary motor cortex ipsilateral to an active hand (ipsi-M1) plays an important role in motor control. The aim of this study was to investigate whether the ipsi-M1 excitability would be influenced by goal-directed movement and laterality during unilateral finger movements. Method Ten healthy right-handed subjects performed four finger tapping tasks with the index finger: (1) simple tapping (Tap) task, (2) Real-word task, (3) Pseudoword task, and (4) Visually guided tapping (VT) task. In the Tap task, the subject performed self-paced simple tapping on a touch screen. In the real-word task, the subject tapped letters displayed on the screen one by one to create a Real-word (e.g., apple). Because the action had a specific purpose (i.e., creating a word), this task was considered to be goal-directed as compared to the Tap task. In the Pseudoword task, the subject tapped the letters to create a pseudoword (e.g., gdiok) in the same manner as in the Real-word task; however, the word was less meaningful. In the VT task, the subject was required to touch a series of illuminated buttons. This task was considered to be less goal-directed than the Pseudoword task. The tasks were performed with the right and left hand, and a rest condition was added as control. Single- and paired-pulse TMS were applied to the ipsi-M1 to measure corticospinal excitability and short- and long-interval intracortical inhibition (SICI and LICI) in the resting first dorsal interosseous (FDI) muscle. Results We found the smaller SICI in the ipsi-M1 during the VT task compared with the resting condition. Further, both SICI and LICI were smaller in the right than in the left M1, regardless of the task conditions. Discussion We found that SICI in the ipsi-M1 is smaller during visual illumination-guided finger movement than during the resting condition. Our finding provides basic data for designing a rehabilitation program that modulates the M1 ipsilateral to the moving limb, for example, for post-stroke patients with severe hemiparesis.
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Affiliation(s)
- Takuya Matsumoto
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Tatsunori Watanabe
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takayuki Kuwabara
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Keisuke Yunoki
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Xiaoxiao Chen
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Nami Kubo
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hikari Kirimoto
- Department of Sensorimotor Neuroscience, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Dai W, Nakagawa K, Nakajima T, Kanosue K. Determinants of Neural Plastic Changes Induced by Motor Practice. Front Hum Neurosci 2021; 15:613867. [PMID: 33584230 PMCID: PMC7875877 DOI: 10.3389/fnhum.2021.613867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 01/04/2021] [Indexed: 11/29/2022] Open
Abstract
Short-term motor practice leads to plasticity in the primary motor cortex (M1). The purpose of this study is to investigate the factors that determine the increase in corticospinal tract (CST) excitability after motor practice, with special focus on two factors; “the level of muscle activity” and “the presence/absence of a goal of keeping the activity level constant.” Fifteen healthy subjects performed four types of rapid thumb adduction in separate sessions. In the “comfortable task” (C) and “forceful task” (F), the subjects adducted their thumb using comfortable and strong forces. In the “comfortable with a goal task” (CG) and “forceful with a goal task” (FG), subjects controlled the muscle activity at the same level as in the C and F, respectively, by adjusting the peak electromyographic amplitude within the target ranges. Paired associative stimulation (PAS), which combines peripheral nerve (median nerve) stimulation and transcranial magnetic stimulation (TMS), with an inter-stimulus interval of 25 ms (PAS25) was also done. Before and after the motor tasks and PAS25, TMS was applied to the M1. None of the four tasks showed any temporary changes in behavior, meaning no learning occurred. Motor-evoked potential (MEP) amplitude increased only after the FG and it exhibited a positive correlation with the MEP increase after PAS25, suggesting that FG and PAS25 share at least similar plasticity mechanisms in the M1. Resting motor threshold (RMT) decreased only after FG, suggesting that FG would also be associated with the membrane depolarization of M1 neurons. These results suggest task-dependent plasticity from the synergistic effect of forceful muscle activity and of setting a goal of keeping the activity level constant.
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Affiliation(s)
- Wen Dai
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - Kento Nakagawa
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Tsuyoshi Nakajima
- Department of Integrative Physiology, Kyorin University School of Medicine, Tokyo, Japan
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10
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Lefebvre S, Pavlidou A, Walther S. What is the potential of neurostimulation in the treatment of motor symptoms in schizophrenia? Expert Rev Neurother 2020; 20:697-706. [DOI: 10.1080/14737175.2020.1775586] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Stephanie Lefebvre
- Translational Research Centre, University Hospital of Psychiatry, University of Bern, Bern, Switzerland
| | - Anastasia Pavlidou
- Translational Research Centre, University Hospital of Psychiatry, University of Bern, Bern, Switzerland
| | - Sebastian Walther
- Translational Research Centre, University Hospital of Psychiatry, University of Bern, Bern, Switzerland
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11
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Alahmari K, Tedla JS, Sangadala DR, Mukherjee D, Reddy RS, Bairapareddy KC, Kandakurti PK. Effectiveness of Hand-Arm Bimanual Intensive Therapy on Hand Function among Children with Unilateral Spastic Cerebral Palsy: A Meta-Analysis. Eur Neurol 2020; 83:131-137. [PMID: 32348996 DOI: 10.1159/000507325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 03/17/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Hand-arm bimanual intensive therapy (HABIT) has been shown to be an effective method for improving upper-extremity function. However, owing to ambiguity within the evidence of HABIT's effects on hand function among children with unilateral spastic cerebral palsy (CP), this meta-analysis sought to elucidate whether the same was true in this patient population. SUMMARY A computerized database search yielded 468 studies. After meticulous scrutiny and screening of these studies according to the selection criteria, 4 full-text articles were included in the meta-analysis. All 4 studies underwent a methodological quality assessment according to the Physiotherapy Evidence Database Scale (PEDro), with a score of greater than 8. Five comparisons were then made involving the 4 selected randomized controlled trials (RCTs). The effect size was measured using the correlation coefficient (r value). The effect sizes of the individual studies were 0.006, 0.03, 0.04, 0.22, and 0.15. The total effect size was 0.06. Key Message: This meta-analysis determined that there is a trivial benefit using HABIT when compared to constraint-induced movement therapy or structured and unstructured bimanual therapy in pediatric patients with unilateral spastic CP. More RCTs are needed to substantiate our evidence.
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Affiliation(s)
- Khalid Alahmari
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Jaya Shanker Tedla
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia,
| | - Devika Rani Sangadala
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Debjani Mukherjee
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ravi Shankar Reddy
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Praveen Kumar Kandakurti
- Department of Physiotherapy, College of Health Sciences, Gulf Medical University, Ajman, United Arab Emirates
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12
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Thorstensen JR, Taylor JL, Tucker MG, Kavanagh JJ. Enhanced serotonin availability amplifies fatigue perception and modulates the TMS‐induced silent period during sustained low‐intensity elbow flexions. J Physiol 2020; 598:2685-2701. [DOI: 10.1113/jp279347] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 03/26/2020] [Indexed: 11/08/2022] Open
Affiliation(s)
| | - Janet L. Taylor
- School of Medical and Health SciencesEdith Cowan University Perth Australia
- Neuroscience Research Australia Sydney Australia
| | - Murray G. Tucker
- Mental HealthDrugs and Alcohol ServiceBarwon HealthUniversity Hospital Geelong Geelong Victoria Australia
| | - Justin J. Kavanagh
- Menzies Health Institute QueenslandGriffith University Gold Coast Australia
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13
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Suzuki T, Suzuki M, Kanemura N, Hamaguchi T. Differential Effect of Visual and Proprioceptive Stimulation on Corticospinal Output for Reciprocal Muscles. Front Integr Neurosci 2019; 13:63. [PMID: 31736723 PMCID: PMC6829117 DOI: 10.3389/fnint.2019.00063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/15/2019] [Indexed: 11/13/2022] Open
Abstract
This study investigated the corticospinal excitability of reciprocal muscles during tasks involving sensory difference between proprioceptive and visual inputs. Participants were instructed to relax their muscles and to observe a screen during vibratory stimulation. A video screen was placed on the board covering the right hand and forearm. Participants were randomly tested in four conditions: resting, control, static, and dynamic. The resting condition involved showing a black screen, the control condition, a mosaic patterned static videoclip; the static condition, a static videoclip of wrist flexion 0°; and the dynamic condition, a videoclip that corresponded to each participant's closely-matched illusory wrist flexion angle and speed by vibration. Vibratory stimulation (frequency 80 Hz and duration 4 s) was applied to the distal tendon of the dominant right extensor carpi radialis (ECR) using a tendon vibrator in the control, static, and dynamic conditions. Four seconds after the vibratory stimulation (end of vibration), the primary motor cortex at the midpoint between the centers of gravity of the flexor carpi radialis (FCR) and ECR muscles was stimulated by transcranial magnetic stimulation (TMS). The ECR motor evoked potential (MEP) amplitudes significantly increased in the control condition compared to the resting condition, whereas the FCR MEP amplitudes did not change between the resting and control conditions. In addition, the ECR MEP amplitudes significantly increased in the static condition compared to the dynamic condition. However, the FCR MEP amplitudes significantly increased in the dynamic condition compared to the static condition. These results imply that the difference between visuo-proprioceptive information had an effect on corticospinal excitability for the muscle. In conclusion, we found that proprioceptive and visual information differentially altered the corticospinal excitability of reciprocal muscles.
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Affiliation(s)
- Takako Suzuki
- School of Health Sciences, Saitama Prefectural University, Saitama, Japan
| | - Makoto Suzuki
- Department of Rehabilitation, Faculty of Health Sciences, Tokyo Kasei University, Saitama, Japan
| | - Naohiko Kanemura
- School of Health Sciences, Saitama Prefectural University, Saitama, Japan
| | - Toyohiro Hamaguchi
- School of Health Sciences, Saitama Prefectural University, Saitama, Japan
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Dynamic task observation: A gaze-mediated complement to traditional action observation treatment? Behav Brain Res 2019; 379:112351. [PMID: 31726070 DOI: 10.1016/j.bbr.2019.112351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/22/2019] [Accepted: 11/08/2019] [Indexed: 11/21/2022]
Abstract
Action observation elicits changes in primary motor cortex known as motor resonance, a phenomenon thought to underpin several functions, including our ability to understand and imitate others' actions. Motor resonance is modulated not only by the observer's motor expertise, but also their gaze behaviour. The aim of the present study was to investigate motor resonance and eye movements during observation of a dynamic goal-directed action, relative to an everyday one - a reach-grasp-lift (RGL) action, commonly used in action-observation-based neurorehabilitation protocols. Skilled and novice golfers watched videos of a golf swing and an RGL action as we recorded MEPs from three forearm muscles; gaze behaviour was concurrently monitored. Corticospinal excitability increased during golf swing observation, but it was not modulated by expertise, relative to baseline; no such changes were observed for the RGL task. MEP amplitudes were related to participants' gaze behaviour: in the RGL condition, target viewing was associated with lower MEP amplitudes; in the golf condition, MEP amplitudes were positively correlated with time spent looking at the effector or neighbouring regions. Viewing of a dynamic action such as the golf swing may enhance action observation treatment, especially when concurrent physical practice is not possible.
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15
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de Souza JA, Corrêa JCF, Agnol LD, Dos Santos FR, Gomes MRP, Corrêa FI. Effects of transcranial direct current stimulation on the rehabilitation of painful shoulder following a stroke: protocol for a randomized, controlled, double-blind, clinical trial. Trials 2019; 20:165. [PMID: 30876431 PMCID: PMC6419802 DOI: 10.1186/s13063-019-3266-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 02/27/2019] [Indexed: 12/02/2022] Open
Abstract
Background Shoulder pain is reported to be one of the major challenges faced in the functional recovery of patients in rehabilitation following a stroke. In such cases, transcranial direct current stimulation (tDCS) has been used as an additional therapeutic tool for improvements in central and peripheral pain. The aim of the proposed study is to evaluate the effect of tDCS when combined with upper limb physical therapy on pain intensity and functional improvement in stroke survivors with shoulder pain in the hemiplegic limb. Methods A randomized, placebo-controlled, double-blind, clinical trial is proposed. The volunteers will be randomly allocated to receive passive movement on the upper limb, which will be performed by the therapist for 20 min followed by either active tDCS or sham tDCS (current stimulation for 30 s) during simultaneous physical activity of the upper limb (“mini-bike”) for 20 min, totaling 40 min of intervention performed in 10 consecutive sessions. The anode electrode will be positioned over the primary motor cortex with a current of 2 mA and the cathode electrode will be positioned in the supraorbital region contralateral to the anode. The primary outcome will be shoulder pain intensity, which will be measured using the visual analog scale (VAS) on three occasions: 1) pre-intervention; 2) after 10 interventions (5 weekly sessions, for 2 weeks); and 3) 30 days after the end of the interventions. The secondary outcomes will be motor performance, upper limb function, and quality of life. Trial registration Brazilian Registry of Clinical Trials, RBR-8F5MNY. Registered on June 2, 2017. Electronic supplementary material The online version of this article (10.1186/s13063-019-3266-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Janaina Andressa de Souza
- Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), Avenida Angélica, 1905-Apt161, São Paulo, SP, Brasil.
| | - João Carlos Ferrari Corrêa
- Postgraduate program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil
| | - Letizzia Dall' Agnol
- Undergraduate course in Physical Therapy, Universidade Nove de Julho (UNINOVE), São Paulo, Brazil
| | | | | | - Fernanda Ishida Corrêa
- Postgraduate program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), São Paulo, SP, Brazil
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16
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Corticospinal excitability is modulated by temporal feedback gaps. Neuroreport 2018; 29:1558-1563. [PMID: 30339605 PMCID: PMC6250285 DOI: 10.1097/wnr.0000000000001148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The integration of sensorimotor information is important for accurate goal-directed movement and affects corticospinal excitability (CE). This study investigated CE during the motor preparation period in a goal-directed movement task with temporal feedback gaps. Each trial began with a pair of first-informative and second-response beeps presented successively as cues. Trials with temporal feedback gaps showed that virtual hand movements lagged 400 ms behind actual performed movements. The participants were instructed to prepare for movement in accordance with the first beep, start the movement upon hearing the second beep, and perform movements that were both fast and accurate to the virtual target. We delivered a single-pulse of transcranial magnetic stimulation to the first dorsal interosseous muscle 250 ms before the presentation of the response beep. Motor-evoked potential amplitudes with temporal feedback gaps were significantly higher than those without temporal feedback gaps. Moreover, motor-evoked potential amplitudes with temporal feedback gaps gradually decreased over the course of the trials, whereas those without temporal feedback gaps did not change. In summary, CE during the motor preparation period was increased by temporal feedback gaps, and this excitation decreased in accordance with adaptation to temporal feedback gaps.
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17
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Quinn L, Miljevic A, Rurak BK, Marinovic W, Vallence AM. Differential plasticity of extensor and flexor motor cortex representations following visuomotor adaptation. Exp Brain Res 2018; 236:2945-2957. [PMID: 30088021 DOI: 10.1007/s00221-018-5349-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/28/2018] [Indexed: 12/20/2022]
Abstract
Representations within the primary motor cortex (M1) are capable of rapid functional changes following motor learning, known as use-dependent plasticity. GABAergic inhibition plays a role in use-dependent plasticity. Evidence suggests a different capacity for plasticity of distal and proximal upper limb muscle representations. However, it is unclear whether the motor cortical representations of forearm flexor and extensor muscles also have different capacities for plasticity. The current study used transcranial magnetic stimulation to investigate motor cortex excitability and inhibition of forearm flexor and extensor representations before and after performance of a visuomotor adaptation task that primarily targeted flexors and extensors separately. There was a decrease in extensor and flexor motor-evoked potential (MEP) amplitude after performing the extensor adaptation, but no change in flexor and extensor MEP amplitude after performing the flexor adaptation. There was also a decrease in motor cortical inhibition in the extensor following extensor adaptation, but no change in motor cortical inhibition in the flexor muscle following flexor adaptation or either of the non-prime mover muscles. Findings suggest that the forearm extensor motor cortical representation exhibits plastic change following adaptive motor learning, and broadly support the distinct neural control of forearm flexor and extensor muscles.
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Affiliation(s)
- L Quinn
- School of Psychology and Exercise Science, Murdoch University, 90 South Street, Murdoch, WA, 6150, Australia
| | - A Miljevic
- School of Psychology and Exercise Science, Murdoch University, 90 South Street, Murdoch, WA, 6150, Australia
| | - B K Rurak
- School of Psychology and Exercise Science, Murdoch University, 90 South Street, Murdoch, WA, 6150, Australia
| | - W Marinovic
- School of Psychology, Curtin University, Perth, Australia
| | - Ann-Maree Vallence
- School of Psychology and Exercise Science, Murdoch University, 90 South Street, Murdoch, WA, 6150, Australia.
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18
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Kawanabe E, Suzuki M, Tanaka S, Sasaki S, Hamaguchi T. Impairment in toileting behavior after a stroke. Geriatr Gerontol Int 2018; 18:1166-1172. [PMID: 29770543 DOI: 10.1111/ggi.13435] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/13/2018] [Accepted: 04/04/2018] [Indexed: 02/06/2023]
Abstract
AIM Dependence for toileting is the most problematic aspect for patients after a stroke. However, the relative difficulty of each component of toileting and the predictors for independent performance of these activities are unknown. We investigated these issues in stroke patients using Boltzmann sigmoid and generalized linear modeling. METHODS We carried out a cross-sectional correlation study, including 107 adult inpatients, hospitalized for a stroke. We assessed the activity components of toileting, as well as evaluated physical impairment using the Fugl-Meyer Assessment, impairments in balance using the Berg Balance Scale, cognitive impairments using the Mini-Mental State Examination and the presence or absence of unilateral spatial neglect or aphasia. RESULTS Boltzmann sigmoid modeling showed that the total scores required to obtain a response at 50% of the maximal value for the required components of toileting ranged between 2.691 and 34.962 points, for the components of "wearing pants" and "cutting the toilet paper," respectively. A generalized linear model showed that the Berg Balance Scale score was a significant predictor for independent performance on most component activities of toileting. CONCLUSIONS The component of toileting that was easiest to carry out was cutting the toilet paper, and the most difficult was wearing pants. Balance impairment was an independent predictor of independent toileting after stroke. This detailed toileting assessment enabled us to document the most difficult components of toileting, and to assess the motor and process skills required for independent toileting. Geriatr Gerontol Int 2018; 18: 1166-1172.
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Affiliation(s)
- Eri Kawanabe
- Department of Rehabilitation, Hamareha Home-visit Rehabilitation Station, Kanagawa, Japan
| | - Makoto Suzuki
- Faculty of Health Sciences, Tokyo Kasei University, Saitama, Japan
| | - Satoshi Tanaka
- Laboratory of Psychology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Shotaro Sasaki
- Department of Rehabilitation, St. Marianna University, Yokohama City Seibu Hospital, Kanagawa, Japan
| | - Toyohiro Hamaguchi
- School of Health Sciences, Saitama Prefectural University, Saitama, Japan
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19
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Kwong PWH, Ng GYF, Chung RCK, Ng SSM. Bilateral Transcutaneous Electrical Nerve Stimulation Improves Lower-Limb Motor Function in Subjects With Chronic Stroke: A Randomized Controlled Trial. J Am Heart Assoc 2018; 7:e007341. [PMID: 29437598 PMCID: PMC5850185 DOI: 10.1161/jaha.117.007341] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 01/10/2018] [Indexed: 01/18/2023]
Abstract
BACKGROUND Transcutaneous electrical nerve stimulation (TENS) has been used to augment the efficacy of task-oriented training (TOT) after stroke. Bilateral intervention approaches have also been shown to be effective in augmenting motor function after stroke. The purpose of this study was to compare the efficacy of bilateral TENS combined with TOT versus unilateral TENS combined with TOT in improving lower-limb motor function in subjects with chronic stroke. METHODS AND RESULTS Eighty subjects were randomly assigned to bilateral TENS+TOT or to unilateral TENS+TOT and underwent 20 sessions of training over a 10-week period. The outcome measures included the maximal strength of the lower-limb muscles and the results of the Lower Extremity Motor Coordination Test, Berg Balance Scale, Step Test, and Timed Up and Go test. Each participant was assessed at baseline, after 10 and 20 sessions of training and 3 months after the cessation of training. The subjects in the bilateral TENS+TOT group showed greater improvement in paretic ankle dorsiflexion strength (β=1.32; P=0.032) and in the completion time for the Timed Up and Go test (β=-1.54; P=0.004) than those in the unilateral TENS+TOT group. However, there were no significant between-group differences for other outcome measures. CONCLUSIONS The application of bilateral TENS over the common peroneal nerve combined with TOT was superior to the application of unilateral TENS combined with TOT in improving paretic ankle dorsiflexion strength after 10 sessions of training and in improving the completion time for the Timed Up and Go test after 20 sessions of training. CLINICAL TRIAL REGISTRATION URL: http://www.clinicaltrials.gov. Unique identifier: NCT02152813.
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Affiliation(s)
- Patrick W H Kwong
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
| | - Gabriel Y F Ng
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
| | - Raymond C K Chung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
| | - Shamay S M Ng
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
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Suzuki M, Hamaguchi T, Matsunaga A. Nonequivalent modulation of corticospinal excitability by positive and negative outcomes. Brain Behav 2018; 8:e00862. [PMID: 29568678 PMCID: PMC5853642 DOI: 10.1002/brb3.862] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 08/25/2017] [Accepted: 09/25/2017] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE The difference between positive and negative outcomes is important in trial-and-error decision-making processes and affects corticospinal excitability. This study investigated corticospinal excitability during the performance of trial-and-error decision-making tasks with varying competing behavioral outcomes. METHODS Each trial began with one of five colored circles presented as a cue. Each color represented a different reward probability, ranging from 10% to 90%. The subjects were instructed to decide whether to perform wrist flexion in response to the cue. Two seconds after the presentation of the cue, a reward stimulus (picture of a coin) or penalty stimulus (mauve circle) was randomly presented to the subject. If the picture of a coin appeared, the subjects received the coin after the experiment if they had performed wrist flexion, but not if they had not performed wrist flexion. If a mauve circle appeared, a coin was deducted from the total reward if the subjects had performed wrist flexion, but not if they had not performed wrist flexion. One second after the reward or penalty stimulus, transcranial magnetic stimulation was delivered to the primary motor cortex at the midpoint between the centers of gravity of the flexor carpi radialis (agonist) and extensor carpi radialis (antagonist) muscles. RESULTS Cumulative wrist flexions were positively correlated with reward probabilities. Motor evoked potential (MEP) amplitudes in agonist muscles were significantly higher when wrist flexion incurred a penalty than when it incurred a reward, but there was no difference in the MEP amplitudes of antagonist muscles. CONCLUSION Positive and negative behavioral outcomes differentially altered behavior and corticospinal excitability, and unexpected penalties had a stronger effect on corticospinal excitability for agonist muscles.
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Affiliation(s)
- Makoto Suzuki
- School of Health Sciences Saitama Prefectural University Saitama Japan
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21
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Dumel G, Bourassa MÈ, Charlebois-Plante C, Desjardins M, Doyon J, Saint-Amour D, De Beaumont L. Multisession anodal transcranial direct current stimulation induces motor cortex plasticity enhancement and motor learning generalization in an aging population. Clin Neurophysiol 2017; 129:494-502. [PMID: 29223355 DOI: 10.1016/j.clinph.2017.10.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 10/17/2017] [Accepted: 10/31/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVES The present aging study investigated the impact of a multisession anodal-tDCS protocol applied over the primary motor cortex (M1) during motor sequence learning on generalization of motor learning and plasticity-dependent measures of cortical excitability. METHODS A total of 32 cognitively-intact aging participants performed five consecutive daily 20-min sessions of the serial-reaction time task (SRTT) concomitant with either anodal (n = 16) or sham (n = 16) tDCS over M1. Before and after the intervention, all participants performed the Purdue Pegboard Test (PPT) and Transcranial Magnetic Stimulation (TMS) measures of cortical excitability were collected. RESULTS Relative to sham, participants assigned to the anodal-tDCS intervention revealed significantly greater performance gains on both the trained SRTT and the untrained PPT as well as a greater disinhibition of long-interval cortical inhibition (LICI). Generalization effects of anodal-tDCS significantly correlated with LICI disinhibition. CONCLUSION Anodal-tDCS facilitates motor learning generalisation in an aging population through intracortical disinhibition effects. SIGNIFICANCE The current findings demonstrate the potential clinical utility of a multisession anodal-tDCS over M1 protocol as an adjuvant to motor training in alleviating age-associated motor function decline. This study also reveals the pertinence of implementing brain stimulation techniques to modulate age-associated intracortical inhibition changes in order to facilitate motor function gains.
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Affiliation(s)
- Gaëlle Dumel
- Centre de recherche de l'hôpital du Sacré-Cœur de Montréal, 5400, boulevard Gouin Ouest, Montréal, Québec H4J1C5, Canada; Département de Psychologie, Université du Québec à Montréal, 100, rue Sherbrooke Ouest, Montréal, Québec H2X3P2, Canada.
| | - Marie-Ève Bourassa
- Centre de recherche de l'hôpital du Sacré-Cœur de Montréal, 5400, boulevard Gouin Ouest, Montréal, Québec H4J1C5, Canada; Département de Psychologie, Université du Québec à Montréal, 100, rue Sherbrooke Ouest, Montréal, Québec H2X3P2, Canada
| | - Camille Charlebois-Plante
- Centre de recherche de l'hôpital du Sacré-Cœur de Montréal, 5400, boulevard Gouin Ouest, Montréal, Québec H4J1C5, Canada
| | - Martine Desjardins
- Centre de recherche de l'hôpital du Sacré-Cœur de Montréal, 5400, boulevard Gouin Ouest, Montréal, Québec H4J1C5, Canada; Département de Psychologie, Université du Québec à Montréal, 100, rue Sherbrooke Ouest, Montréal, Québec H2X3P2, Canada
| | - Julien Doyon
- Unité de neuroimagerie fonctionnelle, Centre de recherche de l'institut de gériatrie de Montréal, 4545, chemin Queen-Mary, Montréal, Québec H3W1W4, Canada
| | - Dave Saint-Amour
- Département de Psychologie, Université du Québec à Montréal, 100, rue Sherbrooke Ouest, Montréal, Québec H2X3P2, Canada
| | - Louis De Beaumont
- Centre de recherche de l'hôpital du Sacré-Cœur de Montréal, 5400, boulevard Gouin Ouest, Montréal, Québec H4J1C5, Canada; Département de Chirurgie, Université de Montréal, 2900, boulevard Édouard-Montpetit, Montréal, Québec H3T1J4, Canada
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The corticospinal responses of metronome-paced, but not self-paced strength training are similar to motor skill training. Eur J Appl Physiol 2017; 117:2479-2492. [DOI: 10.1007/s00421-017-3736-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 10/02/2017] [Indexed: 10/18/2022]
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23
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Grothe M, Doppl K, Roth C, Roschka S, Platz T, Lotze M. Changes in motor cortex excitability for the trained and non-trained hand after long-term unilateral motor training. Neurosci Lett 2017; 647:117-121. [PMID: 28330717 DOI: 10.1016/j.neulet.2017.03.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 02/15/2017] [Accepted: 03/11/2017] [Indexed: 11/16/2022]
Abstract
Repetitive unilateral upper limb motor training does not only affect behavior but also increases excitability of the contralateral primary motor cortex (M1). The behavioral gain is partially transferred to the non-trained side. Changes in M1 intracortical facilitation (ICF) might as well be observed for both hand sides. We measured ICF of both left and right abductor pollicis brevis muscles (APB) before and after a two-week period of arm ability training (AAT) of the left hand in 13 strongly right handed healthy volunteers. Performance with AAT-tasks improved for both the left trained and right untrained hand. ICF for the untrained hand decreased over training while it remained unchanged for the left trained hand. Decrease of ICF for the right hand was moderately associated with an increase of AAT-performance for the untrained right hand. We conclude that ICF-imbalance between dominant and non-dominant hand is sensitive to long-term motor training: training of the non-dominant hand results in a decrease of ICF of the dominant hand. The ICF-decrease is associated with a transfer of training-induced improvement of performance from the non-dominant to the dominant hand.
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Affiliation(s)
| | - Karla Doppl
- Functional Imaging Unit, Center for Diagnostic Radiology, University of Greifswald, Germany
| | - Charlotte Roth
- Functional Imaging Unit, Center for Diagnostic Radiology, University of Greifswald, Germany
| | - Sybille Roschka
- BDH-Klinik Greifswald, Neurorehabilitation Centre and Spinal Cord Injury Unit, University of Greifswald, Germany
| | - Thomas Platz
- BDH-Klinik Greifswald, Neurorehabilitation Centre and Spinal Cord Injury Unit, University of Greifswald, Germany
| | - Martin Lotze
- Functional Imaging Unit, Center for Diagnostic Radiology, University of Greifswald, Germany.
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24
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Summers SJ, Schabrun SM, Marinovic W, Chipchase LS. Peripheral electrical stimulation increases corticomotor excitability and enhances the rate of visuomotor adaptation. Behav Brain Res 2017; 322:42-50. [DOI: 10.1016/j.bbr.2017.01.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/04/2017] [Accepted: 01/06/2017] [Indexed: 10/20/2022]
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25
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Moscatelli F, Messina G, Valenzano A, Petito A, Triggiani AI, Messina A, Monda V, Viggiano A, De Luca V, Capranica L, Monda M, Cibelli G. Differences in corticospinal system activity and reaction response between karate athletes and non-athletes. Neurol Sci 2016; 37:1947-1953. [PMID: 27544220 DOI: 10.1007/s10072-016-2693-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 08/15/2016] [Indexed: 01/06/2023]
Abstract
The aim of this study was to verify the hypothesis that transcranial magnetic stimulation (TMS) parameters over the hand region of the motor cortex, such as resting motor threshold (rMT) and motor evoked potential (MEP) latency, predict the behavioural performance of karate athletes in the response time (RT) test. Twenty-five male karate athletes (24.9 ± 4.9 years) and 25 matched non-athletes (26.2 ± 4.5 years) were recruited. Using TMS, we investigated cortico-spinal system excitability. Compared with controls, the athletes showed faster RT (p < 0.001), lower rMT (p < 0.01), shorter MEP latency (p < 0.01), and higher MEP amplitude (p < 0.01); moreover, there was a significant positive linear correlation between RT and rMT (p < 0.001), between RT and MEP latency (p < 0.0001), and a negative correlation between RT and MEP amplitude (p < 0.001). The practice of competitive sports affects both the central and peripheral nervous system. Subjects that showed higher cortical excitability showed also higher velocity, at which the neural signal is propagated from the motor cortex to the muscle and consequently better RT. The lower rMT and the shorter MEP latency observed in athletes support the effects of training in determining specific brain organizations to meet specific sport challenges.
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Affiliation(s)
- Fiorenzo Moscatelli
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
- Department of Motor, Human and Health Science, University of Rome, "Foro Italico", Rome, Italy
| | - Giovanni Messina
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Second University of Naples, Naples, Italy.
| | - Anna Valenzano
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Annamaria Petito
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | | | - Antonietta Messina
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Second University of Naples, Naples, Italy
| | - Vincenzo Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Second University of Naples, Naples, Italy
| | - Andrea Viggiano
- Department of Medicine and Surgery, University of Salerno, via Allende snc, Baronissi, SA, Italy
| | - Vincenzo De Luca
- Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Laura Capranica
- Department of Motor, Human and Health Science, University of Rome, "Foro Italico", Rome, Italy
| | - Marcellino Monda
- Department of Experimental Medicine, Section of Human Physiology and Unit of Dietetics and Sports Medicine, Second University of Naples, Naples, Italy
| | - Giuseppe Cibelli
- Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
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Parker RS, Lewis GN, Rice DA, McNair PJ. Is Motor Cortical Excitability Altered in People with Chronic Pain? A Systematic Review and Meta-Analysis. Brain Stimul 2016; 9:488-500. [DOI: 10.1016/j.brs.2016.03.020] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 03/02/2016] [Accepted: 03/30/2016] [Indexed: 01/18/2023] Open
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Whole body heat stress increases motor cortical excitability and skill acquisition in humans. Clin Neurophysiol 2015; 127:1521-1529. [PMID: 26616546 DOI: 10.1016/j.clinph.2015.11.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 10/26/2015] [Accepted: 11/01/2015] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Vigorous systemic exercise stimulates a cascade of molecular and cellular processes that enhance central nervous system (CNS) plasticity and performance. The influence of heat stress on CNS performance and learning is novel. We designed two experiments to determine whether passive heat stress (1) facilitated motor cortex excitability and (2) improved motor task acquisition compared to no heat stress. METHODS Motor evoked potentials (MEPs) from the first dorsal interosseus (FDI) were collected before and after 30 min of heat stress at 73 °C. A second cohort of subjects performed a motor learning task using the FDI either following heat or the no heat condition. RESULTS Heat stress increased heart rate to 65% of age-predicted maximum. After heat, mean resting MEP amplitude increased 48% (p<0.05). MEP stimulus-response amplitudes did not differ according to stimulus intensity. In the second experiment, heat stress caused a significant decrease in absolute and variable error (p<0.05) during a novel movement task using the FDI. CONCLUSIONS Passive environmental heat stress (1) increases motor cortical excitability, and (2) enhances performance in a motor skill acquisition task. SIGNIFICANCE Controlled heat stress may prime the CNS to enhance motor skill acquisition during rehabilitation.
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Hirano M, Kubota S, Tanabe S, Koizume Y, Funase K. Interactions Among Learning Stage, Retention, and Primary Motor Cortex Excitability in Motor Skill Learning. Brain Stimul 2015; 8:1195-204. [DOI: 10.1016/j.brs.2015.07.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 07/09/2015] [Accepted: 07/09/2015] [Indexed: 11/30/2022] Open
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Leung M, Rantalainen T, Teo WP, Kidgell D. Motor cortex excitability is not differentially modulated following skill and strength training. Neuroscience 2015; 305:99-108. [DOI: 10.1016/j.neuroscience.2015.08.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 08/03/2015] [Accepted: 08/04/2015] [Indexed: 01/08/2023]
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Direct and crossed effects of somatosensory electrical stimulation on motor learning and neuronal plasticity in humans. Eur J Appl Physiol 2015; 115:2505-19. [PMID: 26335625 PMCID: PMC4635177 DOI: 10.1007/s00421-015-3248-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 08/13/2015] [Indexed: 12/02/2022]
Abstract
Purpose Sensory input can modify voluntary motor function. We examined whether somatosensory electrical stimulation (SES) added to motor practice (MP) could augment motor learning, interlimb transfer, and whether physiological changes in neuronal excitability underlie these changes. Methods Participants (18–30 years, n = 31) received MP, SES, MP + SES, or a control intervention. Visuomotor practice included 300 trials for 25 min with the right-dominant wrist and SES consisted of weak electrical stimulation of the radial and median nerves above the elbow. Single- and double-pulse transcranial magnetic stimulation (TMS) metrics were measured in the intervention and non-intervention extensor carpi radialis. Results There was 27 % motor learning and 9 % (both p < 0.001) interlimb transfer in all groups but SES added to MP did not augment learning and transfer. Corticospinal excitability increased after MP and SES when measured at rest but it increased after MP and decreased after SES when measured during contraction. No changes occurred in intracortical inhibition and facilitation. MP did not affect the TMS metrics in the transfer hand. In contrast, corticospinal excitability strongly increased after SES with MP + SES showing sharply opposite of these effects. Conclusion Motor practice and SES each can produce motor learning and interlimb transfer and are likely to be mediated by different mechanisms. The results provide insight into the physiological mechanisms underlying the effects of MP and SES on motor learning and cortical plasticity and show that these mechanisms are likely to be different for the trained and stimulated motor cortex and the non-trained and non-stimulated motor cortex.
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López-Alonso V, Cheeran B, Fernández-del-Olmo M. Relationship Between Non-invasive Brain Stimulation-induced Plasticity and Capacity for Motor Learning. Brain Stimul 2015; 8:1209-19. [PMID: 26319358 DOI: 10.1016/j.brs.2015.07.042] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 07/02/2015] [Accepted: 07/24/2015] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Cortical plasticity plays a key role in motor learning (ML). Non-invasive brain stimulation (NIBS) paradigms have been used to modulate plasticity in the human motor cortex in order to facilitate ML. However, little is known about the relationship between NIBS-induced plasticity over M1 and ML capacity. HYPOTHESIS NIBS-induced MEP changes are related to ML capacity. METHODS 56 subjects participated in three NIBS (paired associative stimulation, anodal transcranial direct current stimulation and intermittent theta-burst stimulation), and in three lab-based ML task (serial reaction time, visuomotor adaptation and sequential visual isometric pinch task) sessions. ANALYSIS After clustering the patterns of response to the different NIBS protocols, we compared the ML variables between the different patterns found. We used regression analysis to explore further the relationship between ML capacity and summary measures of the MEPs change. We ran correlations with the "responders" group only. RESULTS We found no differences in ML variables between clusters. Greater response to NIBS protocols may be predictive of poor performance within certain blocks of the VAT. "Responders" to AtDCS and to iTBS showed significantly faster reaction times than "non-responders." However, the physiological significance of these results is uncertain. CONCLUSION MEP changes induced in M1 by PAS, AtDCS and iTBS appear to have little, if any, association with the ML capacity tested with the SRTT, the VAT and the SVIPT. However, cortical excitability changes induced in M1 by AtDCS and iTBS may be related to reaction time and retention of newly acquired skills in certain motor learning tasks.
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Affiliation(s)
- Virginia López-Alonso
- Faculty of Sciences of Sport and Physical Education, Department of Physical Education, University of A Coruña, A Coruña, Spain
| | - Binith Cheeran
- Department of Neurology, John Radcliffe Hospital, Headington, Oxford, UK; Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Miguel Fernández-del-Olmo
- Faculty of Sciences of Sport and Physical Education, Department of Physical Education, University of A Coruña, A Coruña, Spain.
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Abstract
Auditory learning is associated with an enhanced representation of acoustic cues in primary auditory cortex, and modulation of inhibitory strength is causally involved in learning. If this inhibitory plasticity is associated with task learning and improvement, its expression should emerge and persist until task proficiency is achieved. We tested this idea by measuring changes to cortical inhibitory synaptic transmission as adult gerbils progressed through the process of associative learning and perceptual improvement. Using either of two procedures, aversive or appetitive conditioning, animals were trained to detect amplitude-modulated noise and then tested daily. Following each training session, a thalamocortical brain slice was generated, and inhibitory synaptic properties were recorded from layer 2/3 pyramidal neurons. Initial associative learning was accompanied by a profound reduction in the amplitude of spontaneous IPSCs (sIPSCs). However, sIPSC amplitude returned to control levels when animals reached asymptotic behavioral performance. In contrast, paired-pulse ratios decreased in trained animals as well as in control animals that experienced unpaired conditioned and unconditioned stimuli. This latter observation suggests that inhibitory release properties are modified during behavioral conditioning, even when an association between the sound and reinforcement cannot occur. These results suggest that associative learning is accompanied by a reduction of postsynaptic inhibitory strength that persists for several days during learning and perceptual improvement.
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Omiyale O, Crowell CR, Madhavan S. Effect of Wii-Based Balance Training on Corticomotor Excitability Post Stroke. J Mot Behav 2014; 47:190-200. [DOI: 10.1080/00222895.2014.971699] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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The role of neuroplasticity in experimental neck pain: A study of potential mechanisms impeding clinical outcomes of training. ACTA ACUST UNITED AC 2014; 19:288-93. [DOI: 10.1016/j.math.2014.04.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 03/07/2014] [Accepted: 04/10/2014] [Indexed: 12/15/2022]
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Christova M, Rafolt D, Golaszewski S, Nardone R, Gallasch E. Electrical stimulation during skill training with a therapeutic glove enhances the induction of cortical plasticity and has a positive effect on motor memory. Behav Brain Res 2014; 270:171-8. [DOI: 10.1016/j.bbr.2014.05.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 05/05/2014] [Accepted: 05/12/2014] [Indexed: 11/16/2022]
Affiliation(s)
- Monica Christova
- Department of Physiology, Medical University of Graz, Harrachgasse 21/5, 8010 Graz, Austria; Department of Physiotherapy, University of Applied Sciences FH JOANNEUM, Graz, Austria.
| | - Dietmar Rafolt
- Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria
| | - Stefan Golaszewski
- Department of Neurology, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - Raffaele Nardone
- Department of Neurology, Paracelsus Medical University of Salzburg, Salzburg, Austria; Department of Neurology, F. Tappeiner Hospital, Merano, Italy
| | - Eugen Gallasch
- Department of Physiology, Medical University of Graz, Harrachgasse 21/5, 8010 Graz, Austria
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Lissek S, Vallana GS, Schlaffke L, Lenz M, Dinse HR, Tegenthoff M. Opposing effects of dopamine antagonism in a motor sequence task-tiapride increases cortical excitability and impairs motor learning. Front Behav Neurosci 2014; 8:201. [PMID: 24994972 PMCID: PMC4063238 DOI: 10.3389/fnbeh.2014.00201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 05/18/2014] [Indexed: 11/30/2022] Open
Abstract
The dopaminergic system is involved in learning and participates in the modulation of cortical excitability (CE). CE has been suggested as a marker of learning and use-dependent plasticity. However, results from separate studies on either motor CE or motor learning challenge this notion, suggesting opposing effects of dopaminergic modulation upon these parameters: while agonists decrease and antagonists increase CE, motor learning is enhanced by agonists and disturbed by antagonists. To examine whether this discrepancy persists when complex motor learning and motor CE are measured in the same experimental setup, we investigated the effects of dopaminergic (DA) antagonism upon both parameters and upon task-associated brain activation. Our results demonstrate that DA-antagonism has opposing effects upon motor CE and motor sequence learning. Tiapride did not alter baseline CE, but increased CE post training of a complex motor sequence while simultaneously impairing motor learning. Moreover, tiapride reduced activation in several brain regions associated with motor sequence performance, i.e., dorsolateral PFC (dlPFC), supplementary motor area (SMA), Broca's area, cingulate and caudate body. Blood-oxygenation-level-dependent (BOLD) intensity in anterior cingulate and caudate body, but not CE, correlated with performance across groups. In summary, our results do not support a concept of CE as a general marker of motor learning, since they demonstrate that a straightforward relation of increased CE and higher learning success does not apply to all instances of motor learning. At least for complex motor tasks that recruit a network of brain regions outside motor cortex, CE in primary motor cortex is probably no central determinant for learning success.
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Affiliation(s)
- Silke Lissek
- Department of Neurology, BG University Hospital Bergmannsheil, Ruhr-University Bochum Bochum, Germany
| | - Guido S Vallana
- Department of Neurology, BG University Hospital Bergmannsheil, Ruhr-University Bochum Bochum, Germany
| | - Lara Schlaffke
- Department of Neurology, BG University Hospital Bergmannsheil, Ruhr-University Bochum Bochum, Germany
| | - Melanie Lenz
- Department of Neurology, BG University Hospital Bergmannsheil, Ruhr-University Bochum Bochum, Germany
| | - Hubert R Dinse
- Department of Neurology, BG University Hospital Bergmannsheil, Ruhr-University Bochum Bochum, Germany ; Neural Plasticity Lab, Institute for Neuroinformatics, Ruhr-University Bochum Bochum, Germany
| | - Martin Tegenthoff
- Department of Neurology, BG University Hospital Bergmannsheil, Ruhr-University Bochum Bochum, Germany
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Papegaaij S, Taube W, Hogenhout M, Baudry S, Hortobágyi T. Age-related decrease in motor cortical inhibition during standing under different sensory conditions. Front Aging Neurosci 2014; 6:126. [PMID: 24971063 PMCID: PMC4054792 DOI: 10.3389/fnagi.2014.00126] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 05/28/2014] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Although recent studies point to the involvement of the primary motor cortex in postural control, it is unknown if age-related deterioration of postural control is associated with changes in motor cortical circuits. We examined the interaction between age and sensory condition in the excitability of intracortical motor pathways as indexed by short-interval intracortical inhibition (SICI) and intracortical facilitation (ICF) during standing. METHODS We used magnetic brain stimulation to evoke SICI and ICF in 11 young (range 21-25 years) and 12 healthy old adults (range 60-74 years) while they stood on a rigid platform or foam, with the eyes open or closed. RESULTS There was an overall age-related 43% reduction in SICI (p = 0.001). SICI lessened when standing on foam in old (31%) but not in young (1%) adults (condition × group interaction, p = 0.049). This reduction was associated with increases in center of pressure velocity (r = -0.648, p = 0.043). Age (p = 0.527) and sensory conditions (p = 0.325) did not affect ICF. CONCLUSION Motor cortical circuits controlling leg muscles are modulated differently in healthy old vs. young adults during upright posture. Future experiments will clarify whether this difference mediates impaired postural control or serves as a compensatory mechanism to counteract postural instability.
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Affiliation(s)
- Selma Papegaaij
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen Groningen, Netherlands
| | - Wolfgang Taube
- Movement and Sports Science, Department of Medicine, University of Fribourg Fribourg, Switzerland
| | - Margot Hogenhout
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen Groningen, Netherlands
| | - Stéphane Baudry
- Laboratory of Applied Biology, Faculty for Motor Sciences, Université Libre de Bruxelles Brussels, Belgium
| | - Tibor Hortobágyi
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen Groningen, Netherlands ; Faculty of Health and Life Sciences, Northumbria University Newcastle Upon Tyne, UK
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Suzuki M, Kirimoto H, Sugawara K, Oyama M, Yamada S, Yamamoto JI, Matsunaga A, Fukuda M, Onishi H. Motor cortex-evoked activity in reciprocal muscles is modulated by reward probability. PLoS One 2014; 9:e90773. [PMID: 24603644 PMCID: PMC3948372 DOI: 10.1371/journal.pone.0090773] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Accepted: 02/05/2014] [Indexed: 12/02/2022] Open
Abstract
Horizontal intracortical projections for agonist and antagonist muscles exist in the primary motor cortex (M1), and reward may induce a reinforcement of transmission efficiency of intracortical circuits. We investigated reward-induced change in M1 excitability for agonist and antagonist muscles. Participants were 8 healthy volunteers. Probabilistic reward tasks comprised 3 conditions of 30 trials each: 30 trials contained 10% reward, 30 trials contained 50% reward, and 30 trials contained 90% reward. Each trial began with a cue (red fixation cross), followed by blue circle for 1 s. The subjects were instructed to perform wrist flexion and press a button with the dorsal aspect of middle finger phalanx as quickly as possible in response to disappearance of the blue circle without looking at their hand or the button. Two seconds after the button press, reward/non-reward stimulus was randomly presented for 2-s duration. The reward stimulus was a picture of Japanese 10-yen coin, and each subject received monetary reward at the end of experiment. Subjects were not informed of the reward probabilities. We delivered transcranial magnetic stimulation of the left M1 at the midpoint between center of gravities of agonist flexor carpi radialis (FCR) and antagonist extensor carpi radialis (ECR) muscles at 2 s after the red fixation cross and 1 s after the reward/non-reward stimuli. Relative motor evoked potential (MEP) amplitudes at 2 s after the red fixation cross were significantly higher for 10% reward probability than for 90% reward probability, whereas relative MEP amplitudes at 1 s after reward/non-reward stimuli were significantly higher for 90% reward probability than for 10% and 50% reward probabilities. These results implied that reward could affect the horizontal intracortical projections in M1 for agonist and antagonist muscles, and M1 excitability including the reward-related circuit before and after reward stimulus could be differently altered by reward probability.
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Affiliation(s)
- Makoto Suzuki
- Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan
- * E-mail:
| | - Hikari Kirimoto
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Kazuhiro Sugawara
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Mineo Oyama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - Sumio Yamada
- Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | | | - Atsuhiko Matsunaga
- Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan
| | - Michinari Fukuda
- Graduate School of Medical Sciences, Kitasato University, Kanagawa, Japan
| | - Hideaki Onishi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
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Pereira T, Abreu AM, Castro-Caldas A. Understanding task- and expertise-specific motor acquisition and motor memory formation and consolidation. Percept Mot Skills 2014; 117:1150-71. [PMID: 24422343 DOI: 10.2466/23.25.pms.117x14z0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study aimed to assess how the capacity to acquire, form and consolidate motor memories might vary across different tasks and different groups (with and without motor expertise). 20 athletes and 21 non-athletes were tested on five motor tasks: a motor sequence task, a reaction time task, two visuo-manual tasks, and a balance task. Performance was measured before training (T0), immediately after training (T1), and 24 hours after training (T2), to assess motor acquisition and motor memory formation and consolidation. T2 performance was higher in both groups, without additional training, on the motor sequence task, reaction time task and one of the visuo-manual tasks (Pouring Task). Athletes had better baseline performance at TO than non-athletes on these tasks. Findings suggest that differential formation and consolidation processes underlie different motor tasks. Although athletes did not outperform non-athletes on motor memory consolidation, they were more efficient in acquiring novel tasks, perhaps because the required motor schemas might have been based on previously acquired ones.
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Affiliation(s)
- Tiago Pereira
- Institute of Health Sciences, Portuguese Catholic University, Lisbon, Portugal
| | - Ana Maria Abreu
- Faculty of Human Kinetics, Technical University of Lisbon, Portugal
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Peripheral Neurostimulation and Specific Motor Training of Deep Abdominal Muscles Improve Posturomotor Control in Chronic Low Back Pain. Clin J Pain 2013; 29:814-23. [DOI: 10.1097/ajp.0b013e318276a058] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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The aging motor system as a model for plastic changes of GABA-mediated intracortical inhibition and their behavioral relevance. J Neurosci 2013; 33:9039-49. [PMID: 23699515 DOI: 10.1523/jneurosci.4094-12.2013] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Since GABAA-mediated intracortical inhibition has been shown to underlie plastic changes throughout the lifespan from development to aging, here, the aging motor system was used as a model to analyze the interdependence of plastic alterations within the inhibitory motorcortical network and level of behavioral performance. Double-pulse transcranial magnetic stimulation (dpTMS) was used to examine inhibition by means of short-interval intracortical inhibition (SICI) of the contralateral primary motor cortex in a sample of 64 healthy right-handed human subjects covering a wide range of the adult lifespan (age range 20-88 years, mean 47.6 ± 20.7, 34 female). SICI was evaluated during resting state and in an event-related condition during movement preparation in a visually triggered simple reaction time task. In a subgroup (N = 23), manual motor performance was tested with tasks of graded dexterous demand. Weak resting-state inhibition was associated with an overall lower manual motor performance. Better event-related modulation of inhibition correlated with better performance in more demanding tasks, in which fast alternating activation of cortical representations are necessary. Declining resting-state inhibition was associated with weakened event-related modulation of inhibition. Therefore, reduced resting-state inhibition might lead to a subsequent loss of modulatory capacity, possibly reflecting malfunctioning precision in GABAAergic neurotransmission; the consequence is an inevitable decline in motor function.
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Lissek S, Vallana GS, Güntürkün O, Dinse H, Tegenthoff M. Brain activation in motor sequence learning is related to the level of native cortical excitability. PLoS One 2013; 8:e61863. [PMID: 23613956 PMCID: PMC3628854 DOI: 10.1371/journal.pone.0061863] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 03/15/2013] [Indexed: 11/18/2022] Open
Abstract
Cortical excitability may be subject to changes through training and learning. Motor training can increase cortical excitability in motor cortex, and facilitation of motor cortical excitability has been shown to be positively correlated with improvements in performance in simple motor tasks. Thus cortical excitability may tentatively be considered as a marker of learning and use-dependent plasticity. Previous studies focused on changes in cortical excitability brought about by learning processes, however, the relation between native levels of cortical excitability on the one hand and brain activation and behavioral parameters on the other is as yet unknown. In the present study we investigated the role of differential native motor cortical excitability for learning a motor sequencing task with regard to post-training changes in excitability, behavioral performance and involvement of brain regions. Our motor task required our participants to reproduce and improvise over a pre-learned motor sequence. Over both task conditions, participants with low cortical excitability (CElo) showed significantly higher BOLD activation in task-relevant brain regions than participants with high cortical excitability (CEhi). In contrast, CElo and CEhi groups did not exhibit differences in percentage of correct responses and improvisation level. Moreover, cortical excitability did not change significantly after learning and training in either group, with the exception of a significant decrease in facilitatory excitability in the CEhi group. The present data suggest that the native, unmanipulated level of cortical excitability is related to brain activation intensity, but not to performance quality. The higher BOLD mean signal intensity during the motor task might reflect a compensatory mechanism in CElo participants.
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Affiliation(s)
- Silke Lissek
- Department of Neurology, BG-Kliniken Bergmannsheil, Ruhr-University Bochum, Bochum, Germany.
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Features of cortical neuroplasticity associated with multidirectional novel motor skill training: a TMS mapping study. Exp Brain Res 2013; 225:513-26. [PMID: 23307156 DOI: 10.1007/s00221-012-3391-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Accepted: 12/19/2012] [Indexed: 01/18/2023]
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Godfrey SB, Lum PS, Chan E, Harris-Love ML. Cortical effects of repetitive finger flexion- vs. extension-resisted tracking movements: a TMS study. J Neurophysiol 2012; 109:1009-16. [PMID: 23175798 DOI: 10.1152/jn.00143.2012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
While the cortical effects of repetitive motor activity are generally believed to be task specific, the task parameters that modulate these effects are incompletely understood. Since there are differences in the neural control of flexor vs. extensor muscles, the type of muscles involved in the motor task of interest may be one important parameter. In addition, the role each muscle plays in the task, such as whether or not it is the prime mover, is another potentially important task parameter. In the present study, use-dependent cortical plasticity was examined in healthy volunteers performing a robotic waveform tracking task with either the extensor digitorum communis (EDC) or flexor digitorum superficialis (FDS) acting as the prime mover. Transcranial magnetic stimulation was used to measure corticospinal excitability (CE) and short-interval intracortical inhibition of lower and higher threshold corticospinal neurons (SICI(L) and SICI(H), respectively) before and after a flexion- or extension-resisted finger tracking task. After repetitive performance of the tracking task, there was a significant decrease in SICI(L) targeting the EDC, while no change in CE targeting EDC was observed. In contrast, the reverse pattern was observed in the FDS: a significant increase in CE with no change in SICI(L). There was also a tendency toward increased SICI(H) targeting whichever muscle was acting as the prime mover, although this effect did not reach statistical significance. We conclude that there is a difference in patterns of use-dependent plasticity between extrinsic finger flexor and extensor muscles performing the same task.
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Affiliation(s)
- Sasha B Godfrey
- Medstar National Rehabilitation Hospital, Research Division, Washington, District of Columbia, USA
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Kang YJ, Park HK, Kim HJ, Lim T, Ku J, Cho S, Kim SI, Park ES. Upper extremity rehabilitation of stroke: facilitation of corticospinal excitability using virtual mirror paradigm. J Neuroeng Rehabil 2012; 9:71. [PMID: 23035951 PMCID: PMC3543207 DOI: 10.1186/1743-0003-9-71] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Accepted: 10/01/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Several experimental studies in stroke patients suggest that mirror therapy and various virtual reality programs facilitate motor rehabilitation. However, the underlying mechanisms for these therapeutic effects have not been previously described. OBJECTIVES We attempted to delineate the changes in corticospinal excitability when individuals were asked to exercise their upper extremity using a real mirror and virtual mirror. Moreover, we attempted to delineate the role of visual modulation within the virtual environment that affected corticospinal excitability in healthy subjects and stroke patients. METHODS A total of 18 healthy subjects and 18 hemiplegic patients were enrolled into the study. Motor evoked potential (MEP)s from transcranial magnetic stimulation were recorded in the flexor carpi radialis of the non-dominant or affected upper extremity using three different conditions: (A) relaxation; (B) real mirror; and (C) virtual mirror. Moreover, we compared the MEPs from the virtual mirror paradigm using continuous visual feedback or intermittent visual feedback. RESULTS The rates of amplitude increment and latency decrement of MEPs in both groups were higher during the virtual mirror task than during the real mirror. In healthy subjects and stroke patients, the virtual mirror task with intermittent visual feedback significantly facilitated corticospinal excitability of MEPs compared with continuous visual feedback. CONCLUSION Corticospinal excitability was facilitated to a greater extent in the virtual mirror paradigm than in the real mirror and in intermittent visual feedback than in the continuous visual feedback, in both groups. This provides neurophysiological evidence supporting the application of the virtual mirror paradigm using various visual modulation technologies to upper extremity rehabilitation in stroke patients.
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Affiliation(s)
- Youn Joo Kang
- Department of Rehabilitation Medicine, Eulji Hospital, Eulji University School of Medicine Seoul, Seoul, Korea
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Weier AT, Pearce AJ, Kidgell DJ. Strength training reduces intracortical inhibition. Acta Physiol (Oxf) 2012; 206:109-19. [PMID: 22642686 DOI: 10.1111/j.1748-1716.2012.02454.x] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 05/14/2012] [Accepted: 05/22/2012] [Indexed: 11/28/2022]
Abstract
AIM Paired-pulse transcranial magnetic stimulation was used to investigate the influence of 4 weeks of heavy load squat strength training on corticospinal excitability and short-interval intracortical inhibition (rectus femoris muscle). METHODS Participants (n = 12) were randomly allocated to a strength training or control group. The strength training group completed 4 weeks of heavy load squat strength training. Recruitment curves were constructed to determine values for the slope of the curve, V50 and peak height. Short-interval intracortical inhibition was assessed using a subthreshold (0.7 × active motor threshold) conditioning stimulus, followed 3 ms later by a supra-threshold (1.2 × active motor threshold) test stimulus. All motor evoked responses were taken during 10% of maximal voluntary isometric contraction (MVC) torque and normalized to the maximal M-wave. RESULTS The strength training group attained 87% increases in 1RM squat strength (P < 0.01), significant increases in measures of corticospinal excitability (1.2 × Motor threshold: 116%, P = 0.016; peak height of recruitment curve = 105%, P < 0.001), and a 32% reduction in short-interval intracortical inhibition (P < 0.01) following the 4-week intervention compared with control. There were no changes in any dependent variable (P > 0.05) detected in the control group. CONCLUSION Repeated high force voluntary muscle activation in the form of short-term strength training reduces short-interval intracortical inhibition. This is consistent with studies involving skilled/complex tasks or novel movement patterns and acute studies investigating acute voluntary contractions.
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Affiliation(s)
- A. T. Weier
- Centre for Physical Activity and Nutrition Research; Deakin University; Melbourne; Vic.; Australia
| | - A. J. Pearce
- Cognitive and Exercise Neuroscience Unit, School of Psychology; Deakin University; Melbourne; Vic.; Australia
| | - D. J. Kidgell
- Centre for Physical Activity and Nutrition Research; Deakin University; Melbourne; Vic.; Australia
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Lauber B, Keller M. Improving motor performance: Selected aspects of augmented feedback in exercise and health. Eur J Sport Sci 2012; 14:36-43. [DOI: 10.1080/17461391.2012.725104] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Suzuki M, Kirimoto H, Onishi H, Yamada S, Tamaki H, Maruyama A, Yamamoto JI. Reciprocal changes in input–output curves of motor evoked potentials while learning motor skills. Brain Res 2012; 1473:114-23. [DOI: 10.1016/j.brainres.2012.07.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 07/23/2012] [Indexed: 11/15/2022]
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Boe SG, Cassidy RJ, McIlroy WE, Graham SJ. Single session motor learning demonstrated using a visuomotor task: Evidence from fMRI and behavioural analysis. J Neurosci Methods 2012; 209:308-19. [PMID: 22743802 DOI: 10.1016/j.jneumeth.2012.06.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 06/08/2012] [Accepted: 06/18/2012] [Indexed: 11/25/2022]
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Ngomo S, Leonard G, Mercier C. Influence of the amount of use on hand motor cortex representation: effects of immobilization and motor training. Neuroscience 2012; 220:208-14. [PMID: 22710067 DOI: 10.1016/j.neuroscience.2012.06.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 05/31/2012] [Accepted: 06/07/2012] [Indexed: 10/28/2022]
Abstract
Converging evidence from animal and human studies has revealed that increased or decreased use of an extremity can lead to changes in cortical representation of the involved muscles. However, opposite experimental manipulations such as immobilization and motor training have sometimes been associated with similar cortical changes. Therefore, the behavioral relevance of these changes remains unclear. The purpose of this study was to observe the effect of the amount of use on hand muscle motor cortex representation by contrasting the effect of unspecific motor training and immobilization. Nine healthy volunteers were tested prior and after a 4-day exposure to two experimental conditions using a randomized cross-over design: a motor training condition (to play Guitar Hero 2h/day with the tested (nondominant) hand on the fret board) and an immobilization condition (to wear an immobilization splint 24h/day). Before and after each condition, motor cortex representation of the nondominant first dorsal interosseous (FDI) muscle was mapped using image-guided transcranial magnetic stimulation (TMS). At the behavioral level, results show that the training condition led to a 20% improvement in the trained task, while the immobilization condition resulted in a 36% decrease in the FDI maximal voluntary contraction. At the neurophysiological level, corticospinal excitability (e.g. Motor-evoked potential amplitude) was found to be decreased in response to immobilization, while no change was observed in response to motor training. No change was found for other TMS variables (motor thresholds or map location/volume/area) in either condition. In conclusion, our results indicate that a 4-day decrease, but not increase, in the amount of use of nondominant hand muscles is sufficient to induce a change in corticospinal excitability. The lack of a training effect might be explained by the use of an unspecific task (that is nevertheless representative of "real-life" training situations) and/or by insufficient duration/intensity to induce long-lasting changes.
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Affiliation(s)
- S Ngomo
- Centre interdisciplinaire de recherche en réadaptation et en intégration sociale (CIRRIS), Canada
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