Abstract：
PURPOSE:To investigate whether repeated sessions of motor imagery and action observation modulate corticospinal excitability (CE) over time, whether these processes are susceptible of any training effect and if such effect might be different for the dominant and non dominant hemisphere. METHODS:11 subjects underwent three sessions, spaced 5-7 days, of single-pulse Transcranial Magnetic Stimulation (TMS) of right and left primary motor cortex. Subjects were asked to imagine or observe pinch-grip actions with either hand. Motor evoked potentials (MEPs) were recorded bilaterally from the First Dorsal Interosseus muscle (FDI), acting as main agonist during precision grip. RESULTS:Motor imagery consistently enhanced CE with respect to action observation, regardless of hemispheric lateralization and of separate testing sessions. However, motor imagery increased CE only when measured over the non-dominant hemisphere, during the third session with respect to the first one. The increase of CE induced by action observation in the first session was not further modified throughout the remaining two sessions, in either hemisphere. CONCLUSIONS:Results suggest that motor imagery is sustained by a cortical network susceptible to training effects only for the non-dominant hemisphere. Such an effect was lacking for action observation, likely because of the innateness of these mechanisms. Results might have implications for rehabilitative purposes.
journal_name
Restor Neurol Neuroscijournal_title
Restorative neurology and neuroscienceauthors
Bianco G,Feurra M,Fadiga L,Rossi A,Rossi Sdoi
10.3233/RNN-2012-120241subject
Has Abstractpub_date
2012-01-01 00:00:00pages
481-9issue
6eissn
0922-6028issn
1878-3627pii
P48030N227137827journal_volume
30pub_type
杂志文章abstract：BACKGROUND:Virtual reality (VR) has the potential to provide intensive, repetitive, and task-oriented training, and game-based therapy can enhance patients' motivation and enjoyment. OBJECTIVE:The objective of the present study was to develop a mobile game-based upper extremity VR program for patients who have experie...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章,随机对照试验
doi：10.3233/RNN-150626
更新日期：2016-05-02 00:00:00
abstract：BACKGROUND:Patients suffering from chronic disorders of consciousness (DOC), including minimally conscious state (MCS) and unresponsive wakefulness syndrome (UWS), typically show an awareness impairment paralleled by a significant reflex hyper-excitability, which depend on the cortical deafferentation following brain-d...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-160655
更新日期：2017-01-01 00:00:00
abstract：:Melatonin (MLT) is a methoxyindole secreted principally by the pineal gland. It is synthesized at night under normal environmental conditions. The endogenous rhythm of secretion is generated by the suprachiasmatic nuclei and entrained by the light/dark cycle. Light is able to both suppress or synchronize melatonin pro...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1998-06-01 00:00:00
abstract：PURPOSE:To investigate the effects of the androgen testosterone propionate (TP), on regeneration of the recurrent laryngeal nerve (RLN) after unilateral crush injury using assessment of vocal fold mobility (VFM) as a measure of behavioral recovery. METHODS:48 adult male rats underwent standardized crush injury of left...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-120287
更新日期：2013-01-01 00:00:00
abstract：PURPOSE:Several studies have shown that transcranial direct current stimulation (tDCS) is a useful tool to enhance language recovery in aphasia. It has also been suggested that modulation of the neurotrophin brain-derived neurotrophic factor (BDNF) might be part of the mechanisms involved in tDCS effects on synaptic co...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-130323
更新日期：2014-01-01 00:00:00
abstract：:Many of the present limitations of peripheral nerve repair might be overcome by performing nerve repairs at the axon level. One approach to nerve repair at this level would be to implant a neuroprosthesis in the form of a microelectronic switchboard which could route the connections of regenerated axons to their corre...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1990-2205
更新日期：1990-01-01 00:00:00
abstract：BACKGROUND:The patients with chronic Disorders of Consciousness (DoC) mostly present with extremely challenging differential diagnosis. The advanced analysis of electroencephalographic (EEG) signals induced by brain stimulation paradigms may provide an appropriate approach to differentiate patients with DoC, besides th...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-170741
更新日期：2017-01-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Neuroplastic alterations of cortical excitability and activity represent the likely neurophysiological foundation of learning and memory formation. Beyond their induction, alterations of these processes by subsequent modification of cortical activity, termed metaplasticity, came into the focus of...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-2011-0601
更新日期：2011-01-01 00:00:00
abstract：:Fetal neocortical block transplants were implanted into the excitotoxically ablated sensorimotor cortex of adult rats in order to examine the density of innervation and distribution of presumptive host derived afferent fibers within these transplants. Cholinergic fiber innervation was examined at 3 months post graftin...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1994-7301
更新日期：1995-01-01 00:00:00
abstract：PURPOSE:The present work compared the behavioral outcomes of ACCS therapy delivered either intravenously (i.v.) or intracerebroventricularly (i.c.v.) after penetrating ballistic-like brain injury (PBBI). Histological markers for neuroinflammation and neurodegeneration were employed to investigate the potential therapeu...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-140455
更新日期：2015-01-01 00:00:00
abstract：:While the regenerating capacity of peripheral nerves has been the subject of intensive study, little is known about the regenerative capacity of the autonomic nervous system. Using an animal model, where the pupil diameter of the eye in the rat serves as a parameter of autonomic function, we studied whether systemic t...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1994-7106
更新日期：1994-01-01 00:00:00
abstract：:PURPOSE: Until recently, there has been a limited amount of research comparing functional and anatomical recovery following nerve injury. Previous studies emphasizing anatomical recovery (such as axonal number) have shown that testosterone promotes regeneration in crushed and transected nerves. The purpose of this stu...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：PURPOSE:We examined the feasibility and outcome of electromyographically triggered electrical muscle stimulation (EMG-ES) plus unilateral or bilateral task specific practice on arm function in chronic stroke survivors with moderate-severe hemiplegia. Transcranial magnetic stimulation was used to examine inter-hemispher...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章,随机对照试验
doi：10.3233/RNN-130319
更新日期：2013-01-01 00:00:00
abstract：:Traumatic brain and spinal cord injuries are severe burdens for the patients, their relatives, the health care providers and society as a whole. Recent data demonstrate the magnitude of the problem: It is mostly a disease of the young gen-eration (age 20-45 years) with mortality rates for severe traumatic brain injury...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:The mechanisms underlying recovery of function following damage to the CNS, although suspected, are virtually unknown. After damage to the adult cat spinal cord, recovery of motor behavior depends on which systems have been interrupted and which remain intact. For example, following hemisection, overground (voluntary)...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1991-245623
更新日期：1991-01-01 00:00:00
abstract：:The authors used different kinds of peripheral nerve grafts to reconstruct a terminal branch of the brachial plexus (the median nerve) gap of adult Sprague-Dawley rats, including fresh or frozen autografts and allografts from Norway rats. They also performed acellular allograft repopulation by autogenous Schwann cells...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:The outgrowth of neurites in neuronal cell cultures reflects the intrinsic capacity for neurite regeneration and morphological rearrangements after axotomy and in plasticity. The role of fast axonal transport in these neurite outgrowth responses has not been investigated. We have recently shown that sabeluzole (R58735...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1992-4103
更新日期：1992-01-01 00:00:00
abstract：BACKGROUND:Traumatic brain injury can result in lasting cognitive dysfunction due to degeneration of mature hippocampal neurons as well as the loss of immature neurons within the dentate gyrus. While endogenous neurogenesis affords a partial recovery of the immature neuron population, hippocampal neurogenesis may be en...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-180831
更新日期：2018-01-01 00:00:00
abstract：:The objective of this study was to develop an optimal dissection procedure for fetal porcine ventral mesencephalon (VM) grafts and to characterize the cellular composition of such an explant, in particular with respect to the dopaminergic and GABAergic components. We have used a monolayer cell culture system to study ...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1994-7402
更新日期：1995-01-01 00:00:00
abstract：BACKGROUND:In low vision patients, the assessment of contrast sensitivity is an essential tool to determine the stage of visual impairment. However, traditional contrast sensitivity tests rely on verbal feedback, and the expertise of the examiner. OBJECTIVE:In the current study, a fast, OKN-based virtual diagnosis too...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-190937
更新日期：2020-01-01 00:00:00
abstract：:Non-invasive brain stimulation techniques, such as repetitive transcranial magnetic stimulation (rTMS), can modify cortical excitability in a lasting fashion. The modification can be bi-directional in nature and holds considerable therapeutic promise for a number of neurological conditions. However, the effectiveness ...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章,评审
doi：10.3233/RNN-2010-0565
更新日期：2010-01-01 00:00:00
abstract：:In the present study, we have developed an animal model for central nervous system (CNS) damage using the graded crush injury of the adult rat optic nerve. This injury model has the following characteristics: (a) the injuries are reproducible; (b) the injuries can be created with controlled severity; and (c) variation...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1990-2104
更新日期：1990-01-01 00:00:00
abstract：PURPOSE:Repetitive mild traumatic brain injury (TBI) is a major military and sports health concern. The purpose of this study was to determine if a diet rich in omega-3 fatty acids would reduce cognitive deficits and neuronal cell death in a novel fluid percussion rat model of repetitive mild TBIs. METHODS:Thirty-two ...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-130316
更新日期：2013-01-01 00:00:00
abstract：:Bridging large defects in mixed nerves is still an unsolved problem in reconstructive microsurgery. Two main aspects may be distinguished: one is to obtain an appropriate substitute for the lost neural tissue, the second to direct fibers toward their previous end-organs with the highest possible specificity. In the pr...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-1997-11306
更新日期：1997-01-01 00:00:00
abstract：PURPOSE:The purpose of this study was to delineate the relationship between several types of T1-weighted MRI pathology and motor rehabilitation potential following Constraint Induced Movement therapy (CI therapy) in chronic stroke. METHODS:Stepwise regression was employed (n = 80) to identify predictors of motor recov...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-130366
更新日期：2014-01-01 00:00:00
abstract：:Over the past few decades astrocytes have emerged from being considered simple packing tissue in the brain to become major players in the development, survival and functioning of central nervous system (CNS) neurons. As the influence that astrocytes (and the various molecules they produce) have on the development of C...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章,评审
doi：
更新日期：2001-01-01 00:00:00
abstract：PURPOSE:The aim of the study was to examine if improvements of stimulus detection performance in visual field tests after intensive visual training of the visual field border zone in patients with visual field defects are associated with changes in self-reported vision- and health-related quality of life (QoL). METHOD...
journal_title：Restorative neurology and neuroscience
pub_type： 临床试验,杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:A long-term goal in motor rehabilitation is that treatment is not selected on the basis of 'schools of thought', but rather, based on knowledge about efficacy and effectiveness of specific interventions for specific situations (e.g. functional syndromes). Motor dysfunction after stroke or TBI can be caused by many dif...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Various basic qualitative and quantitative methods for the evaluation of sensorimotor functions after Traumatic Brain Injury (TBI) are introduced and discussed. Methodological aspects are illustrated by a single case follow-up study of a child after severe TBI (age 11; 712;1 yrs; 6, 8 and 12 month post TBI) in compar...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：BACKGROUND:Oxidative stress is an important factor in the pathophysiologic changes after traumatic brain injury (TBI). Connexin43 (Cx43) was reported to contribute to cerebral damage. However, the impacts of Cx40 have not been investigated in detail. OBJECTIVE:In the present study, we hypothesized that Cx40 was involv...
journal_title：Restorative neurology and neuroscience
pub_type： 杂志文章
doi：10.3233/RNN-160705
更新日期：2017-01-01 00:00:00
