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Sensorimotor training

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https://www.readbyqxmd.com/read/29327652/acquisition-of-a-mental-strategy-to-control-a-virtual-tail-via-brain-computer-interface
#1
Ayaka Fujisawa, Shoko Kasuga, Takaharu Suzuki, Junichi Ushiba
The objective of the present study was to clarify the variation in and properties of mental images and policies used to regulate specific image selection when learning to control a brain-computer interface. Healthy volunteers performed a reaching task with a virtually generated monkey tail-like object on a computer monitor by regulating event-related desynchronization (ERD) on the buttock area of the sensorimotor cortex as recorded by electroencephalogram (EEG). Participants were instructed to find a free image by which the tail was well controlled...
January 12, 2018: Cognitive Neuroscience
https://www.readbyqxmd.com/read/29327649/the-effect-of-auditory-stimulus-training-on-swimming-start-reaction-time
#2
Christopher Papic, Peter Sinclair, Che Fornusek, Ross Sanders
Task-specific auditory training can improve sensorimotor processing times of the auditory reaction time (RT). The majority of competitive swimmers do not conduct habitual start training with the electronic horn used to commence a race. We examined the effect of four week dive training interventions on RT and block time (BT) of 10 male adolescent swimmers (age 14.0 ± 1.4 years): dive training with auditory components (speaker and electronic horn) (n = 5) and dive training without auditory components (n = 5)...
January 12, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29317414/innovative-stroke-interactive-virtual-therapy-strive-online-platform-for-community-dwelling-stroke-survivors-a-randomised-controlled-trial-protocol
#3
Liam Johnson, Marie-Louise Bird, Makii Muthalib, Wei-Peng Teo
INTRODUCTION: The STRoke Interactive Virtual thErapy (STRIVE) intervention provides community-dwelling stroke survivors access to individualised, remotely supervised progressive exercise training via an online platform. This trial aims to determine the clinical efficacy of the STRIVE intervention and its effect on brain activity in community-dwelling stroke survivors. METHODS AND ANALYSIS: In a multisite, assessor-blinded randomised controlled trial, 60 stroke survivors >3 months poststroke with mild-to-moderate upper extremity impairment will be recruited and equally randomised by location (Melbourne, Victoria or Launceston, Tasmania) to receive 8 weeks of virtual therapy (VT) at a local exercise training facility or usual care...
January 9, 2018: BMJ Open
https://www.readbyqxmd.com/read/29316888/the-preventive-effect-of-sensorimotor-and-vibration-exercises-on-the-onset-of-oxaliplatin-or-vinca-alkaloid-induced-peripheral-neuropathies-stop
#4
Fiona Streckmann, Maryam Balke, Helmar C Lehmann, Vanessa Rustler, Christina Koliamitra, Thomas Elter, Michael Hallek, Michael Leitzmann, Tilman Steinmetz, Petra Heinen, Freerk T Baumann, Wilhelm Bloch
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) is a common and clinically relevant side effect of chemotherapy. Approximately 50% of all leukemia, lymphoma, colorectal- and breast cancer patients are affected. CIPN is induced by neurotoxic chemotherapeutic agents and can manifest with sensory and/or motor deficits. It is associated with significant disability and poor recovery. Common symptoms include pain, altered sensation, reduced or absent reflexes, muscle weakness, reduced balance control and insecure gait...
January 10, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29314189/bite-or-brain-implication-of-sensorimotor-regulation-and-neuroplasticity-in-oral-rehabilitation-procedures
#5
REVIEW
Abhishek Kumar, Mohit Kothari, Anastasios Grigoriadis, Mats Trulsson, Peter Svensson
Tooth loss, decreased mass and strength of the masticatory muscles leading to difficulty in chewing have been suggested as important determinants of eating and nutrition in the elderly. To compensate for the loss of teeth, in particular, a majority of the elderly rely on dental prosthesis for chewing. Chewing function is indeed an important aspect of oral health and therefore, oral rehabilitation procedures should aim to restore or maintain adequate function. However, even if the possibilities to anatomically restore lost teeth and occlusion have never been better; conventional rehabilitation procedures may still fail to optimally restore oral functions...
January 3, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29313000/feeder-approach-between-trials-is-increased-by-uncertainty-and-affects-subsequent-choices
#6
Aaron J Gruber, Rajat Thapa, Sienna H Randolph
Animals quickly learn to approach sources of food. Here, we report on a form of approach in which rats made volitional orofacial contact with inactive feeders between trials of a self-paced operant task. This extraneous feeder sampling (EFS) was never reinforced and therefore imposed an opportunity and effort cost. EFS decreased during initial training but persisted thereafter. The relative rate of EFS to operant responding increased with novel changes to the operant chamber, reward devaluation by prefeeding, or lesions to the dorsolateral striatum...
November 2017: ENeuro
https://www.readbyqxmd.com/read/29301545/personalized-upper-limb-training-combined-with-anodal-tdcs-for-sensorimotor-recovery-in-spastic-hemiparesis-study-protocol-for-a-randomized-controlled-trial
#7
Mindy F Levin, Melanie C Baniña, Silvi Frenkel-Toledo, Sigal Berman, Nachum Soroker, John M Solomon, Dario G Liebermann
BACKGROUND: Recovery of voluntary movement is a main rehabilitation goal. Efforts to identify effective upper limb (UL) interventions after stroke have been unsatisfactory. This study includes personalized impairment-based UL reaching training in virtual reality (VR) combined with non-invasive brain stimulation to enhance motor learning. The approach is guided by limiting reaching training to the angular zone in which active control is preserved ("active control zone") after identification of a "spasticity zone"...
January 4, 2018: Trials
https://www.readbyqxmd.com/read/29299228/comparison-of-strategies-and-performance-of-functional-electrical-stimulation-cycling-in-spinal-cord-injury-pilots-for-competition-in-the-first-ever-cybathlon
#8
Christine Azevedo Coste, Vance Bergeron, Rik Berkelmans, Emerson Fachin Martins, Ché Fornusek, Arnin Jetsada, Kenneth J Hunt, Raymond Tong, Ronald Triolo, Peter Wolf
Functional Electrical Stimulation (FES) can elicit muscular contraction and restore motor function in paralyzed limbs. FES is a rehabilitation technique applied to various sensorimotor deficiencies and in different functional situations, e.g. grasping, walking, standing, transfer, cycling and rowing. FES can be combined with mechanical devices. FES-assisted cycling is mainly used in clinical environments for training sessions on cycle ergometers, but it has also been adapted for mobile devices, usually tricycles...
December 5, 2017: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29290418/effect-of-high-intensity-perturbations-during-core-specific-sensorimotor-exercises-on-trunk-muscle-activation
#9
Juliane Mueller, Miralem Hadzic, Hendrik Mugele, Josefine Stoll, Steffen Mueller, Frank Mayer
Core-specific sensorimotor exercises are proven to enhance neuromuscular activity of the trunk. However, the influence of high-intensity perturbations on training efficiency is unclear within this context. Sixteen participants (29±2yrs; 175±8cm; 69±13kg) were prepared with a 12-lead bilateral trunk EMG. Warm-up on a dynamometer was followed by maximum voluntary isometric trunk (flex/ext) contraction (MVC). Next, participants performed four conditions for a one-legged stance with hip abduction on a stable surface (HA) repeated randomly on an unstable surface (HAP), on a stable surface with perturbation (HA+P), and on an unstable surface with perturbation (HAP+P)...
December 15, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29277649/musical-genre-dependent-behavioural-and-eeg-signatures-of-action-planning-a-comparison-between-classical-and-jazz-pianists
#10
R Bianco, G Novembre, P E Keller, A Villringer, D Sammler
It is well established that musical training induces sensorimotor plasticity. However, there are remarkable differences in how musicians train for proficient stage performance. The present EEG study outlines for the first time clear-cut neurobiological differences between classical and jazz musicians at high and low levels of action planning, revealing genre-specific cognitive strategies adopted in production. Pianists imitated chord progressions without sound that were manipulated in terms of harmony and context length to assess high-level planning of sequence-structure, and in terms of the manner of playing to assess low-level parameter specification of single acts...
December 22, 2017: NeuroImage
https://www.readbyqxmd.com/read/29247485/an-eeg-index-of-sensorimotor-interhemispheric-coupling-after-unilateral-stroke-clinical-and-neurophysiological-study
#11
Floriana Pichiorri, Manuela Petti, Stefano Caschera, Laura Astolfi, Febo Cincotti, Donatella Mattia
Brain connectivity has been employed to investigate on post-stroke recovery mechanisms and assess the effect of specific rehabilitation interventions. Changes in interhemispheric coupling after stroke have been related to the extent of damage in the corticospinal tract (CST) and thus, to motor impairment. In this study we aim at defining an index of interhemispheric connectivity derived from electroencephalography (EEG), correlated with CST integrity and clinical impairment. Thirty sub-acute stroke patients underwent clinical and neurophysiological evaluation: CST integrity was assessed by Transcranial Magnetic Stimulation and high-density EEG was recorded at rest...
December 15, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29239328/leap-motion-based-virtual-reality-training-for-improving-motor-functional-recovery-of-upper-limbs-and-neural-reorganization-in-subacute-stroke-patients
#12
Zun-Rong Wang, Ping Wang, Liang Xing, Li-Ping Mei, Jun Zhao, Tong Zhang
Virtual reality is nowadays used to facilitate motor recovery in stroke patients. Most virtual reality studies have involved chronic stroke patients; however, brain plasticity remains good in acute and subacute patients. Most virtual reality systems are only applicable to the proximal upper limbs (arms) because of the limitations of their capture systems. Nevertheless, the functional recovery of an affected hand is most difficult in the case of hemiparesis rehabilitation after a stroke. The recently developed Leap Motion controller can track the fine movements of both hands and fingers...
November 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29230329/regionally-specific-regulation-of-sensorimotor-network-connectivity-following-tactile-improvement
#13
Stefanie Heba, Melanie Lenz, Tobias Kalisch, Oliver Höffken, Lauren M Schweizer, Benjamin Glaubitz, Nicolaas A J Puts, Martin Tegenthoff, Hubert R Dinse, Tobias Schmidt-Wilcke
Correlations between inherent, task-free low-frequency fluctuations in the blood oxygenation level-dependent (BOLD) signals of the brain provide a potent tool to delineate its functional architecture in terms of intrinsic functional connectivity (iFC). Still, it remains unclear how iFC is modulated during learning. We employed whole-brain resting-state magnetic resonance imaging prior to and after training-independent repetitive sensory stimulation (rSS), which is known to induce somatosensory cortical reorganization...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/29229820/beta-oscillations-reflect-supramodal-information-during-perceptual-judgment
#14
Saskia Haegens, José Vergara, Román Rossi-Pool, Luis Lemus, Ranulfo Romo
Previous work on perceptual decision making in the sensorimotor system has shown population dynamics in the beta band, corresponding to the encoding of stimulus properties and the final decision outcome. Here, we asked how oscillatory dynamics in the medial premotor cortex (MPC) contribute to supramodal perceptual decision making. We recorded local field potentials (LFPs) and spikes in two monkeys trained to perform a tactile-acoustic frequency discrimination task, including both unimodal and crossmodal conditions...
December 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29229548/tongue-protrusions-modify-the-syntax-of-skilled-reaching-for-food-by-the-mouse-evidence-for-flexibility-in-action-selection-and-shared-hand-mouth-central-modulation-of-action
#15
Ian Q Whishaw, Behroo Mirza Agha, Jessica R Kuntz, Qandeel, Jamshid Faraji, Majid H Mohajerani
Skilled reaching for food by the laboratory mouse has the appearance of an action pattern with a distinctive syntax in which ten submovements occur in an orderly sequence. A mouse locates the food by Sniffing, Lifts, Aims, Advances, and Shapes the hand to Pronate it over a food target that it Grasps, Retracts, and Withdraws to Release to its mouth for eating. The structure of the individual actions in the chain are useful for the study of the mouse motor system and contribute to the use of the mouse as a model of human neurological conditions...
December 8, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29213051/a-robot-aided-visuo-motor-training-that-improves-proprioception-and-spatial-accuracy-of-untrained-movement
#16
Naveen Elangovan, Leonardo Cappello, Lorenzo Masia, Joshua Aman, Jürgen Konczak
Proprioceptive function can become enhanced during motor learning. Yet, we have incomplete knowledge to what extent proprioceptive function is trainable and how a training that enhances proprioception may influence performance in untrained motor skills. To address this knowledge gap, healthy young adults (N = 14) trained in a visuomotor task that required learners to make increasingly accurate wrist movements. Using a robotic exoskeleton coupled with a virtual visual environment, participants tilted a virtual table through continuous wrist flexion/extension movements with the goal to position a rolling ball on table into a target...
December 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29203897/flexible-timing-by-temporal-scaling-of-cortical-responses
#17
Jing Wang, Devika Narain, Eghbal A Hosseini, Mehrdad Jazayeri
Musicians can perform at different tempos, speakers can control the cadence of their speech, and children can flexibly vary their temporal expectations of events. To understand the neural basis of such flexibility, we recorded from the medial frontal cortex of nonhuman primates trained to produce different time intervals with different effectors. Neural responses were heterogeneous, nonlinear, and complex, and they exhibited a remarkable form of temporal invariance: firing rate profiles were temporally scaled to match the produced intervals...
December 4, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/29203648/musical-training-sharpens-and-bonds-ears-and-tongue-to-hear-speech-better
#18
Yi Du, Robert J Zatorre
The idea that musical training improves speech perception in challenging listening environments is appealing and of clinical importance, yet the mechanisms of any such musician advantage are not well specified. Here, using functional magnetic resonance imaging (fMRI), we found that musicians outperformed nonmusicians in identifying syllables at varying signal-to-noise ratios (SNRs), which was associated with stronger activation of the left inferior frontal and right auditory regions in musicians compared with nonmusicians...
December 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29200430/long-term-sensorimotor-adaptation-in-the-ocular-following-system-of-primates
#19
Markus A Hietanen, Nicholas S C Price, Shaun L Cloherty, Kostas Hadjidimitrakis, Michael R Ibbotson
The sudden movement of a wide-field image leads to a reflexive eye tracking response referred to as short-latency ocular following. If the image motion occurs soon after a saccade the initial speed of the ocular following is enhanced, a phenomenon known as post-saccadic enhancement. We show in macaque monkeys that repeated exposure to the same stimulus regime over a period of months leads to progressive increases in the initial speeds of ocular following. The improvement in tracking speed occurs for ocular following with and without a prior saccade...
2017: PloS One
https://www.readbyqxmd.com/read/29198853/effects-of-exercise-on-cancer-patients-suffering-chemotherapy-induced-peripheral-neuropathy-undergoing-treatment-a-systematic-review
#20
REVIEW
Federica Duregon, Barbara Vendramin, Valentina Bullo, Stefano Gobbo, Cugusi Lucia, Andrea Di Blasio, Daniel Neunhaeuserer, Marco Zaccaria, Marco Bergamin, Andrea Ermolao
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) is the most common neurological and clinically relevant side effect of many commonly used chemotherapeutic agents. Moreover, little effort has been done to investigate the potentially beneficial effects of specific exercises to counteract the CIPN symptoms. OBJECTIVE: This document aims to summarize and analyze systematically the current body of evidence about the effects of specific exercise protocols on CIPN symptoms, balance control, physical function and quality of life in patients with CIPN...
November 7, 2017: Critical Reviews in Oncology/hematology
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