Abstract:
INTRODUCTION:Options currently available to individuals with upper limb loss range from prosthetic hands that can perform many movements, but require more cognitive effort to control, to simpler terminal devices with limited functional abilities. We attempted to address this issue by designing a myoelectric control system to modulate prosthetic hand posture and digit force distribution. METHODS:We recorded surface electromyographic (EMG) signals from five forearm muscles in eight able-bodied subjects while they modulated hand posture and the flexion force distribution of individual fingers. We used a support vector machine (SVM) and a random forest regression (RFR) to map EMG signal features to hand posture and individual digit forces, respectively. After training, subjects performed grasping tasks and hand gestures while a computer program computed and displayed online feedback of all digit forces, in which digits were flexed, and the magnitude of contact forces. We also used a commercially available prosthetic hand, the i-Limb (Touch Bionics), to provide a practical demonstration of the proposed approach's ability to control hand posture and finger forces. RESULTS:Subjects could control hand pose and force distribution across the fingers during online testing. Decoding success rates ranged from 60% (index finger pointing) to 83-99% for 2-digit grasp and resting state, respectively. Subjects could also modulate finger force distribution. DISCUSSION:This work provides a proof of concept for the application of SVM and RFR for online control of hand posture and finger force distribution, respectively. Our approach has potential applications for enabling in-hand manipulation with a prosthetic hand.
journal_name
Front Neuroljournal_title
Frontiers in neurologyauthors
Gailey A,Artemiadis P,Santello Mdoi
10.3389/fneur.2017.00007subject
Has Abstractpub_date
2017-02-01 00:00:00pages
7issn
1664-2295journal_volume
8pub_type
杂志文章abstract::Background: While acute stress and pain are part of our inherent survival mechanisms, persistent stress and pain can negatively impact health and well-being. This may also lead to poor sleep and thus a lack of recovery. This study investigated the influence of stress and musculoskeletal pain on sleep quality. Methods:...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2018.00968
更新日期:2018-11-21 00:00:00
abstract::Background: Trigeminal neuralgia (TN) is a recognized pain condition the treatment of which can be very challenging. Various surgical interventions can be applied in cases of therapy-resistance to drug treatments. The central lateral thalamotomy (CLT) against neurogenic (or neuropathic) pain is based on multiarchitect...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.00271
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abstract:INTRODUCTION:Alzheimer's disease (AD) is a long term progressive neurodegenerative disease and might affect the retinal nerve fiber layer thickness (RNFLT) of the eye. There is increasing evidence that visual evoked potentials (VEP), which are an objective way to indicate visual field loss, might be affected by the dis...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2013.00203
更新日期:2013-12-16 00:00:00
abstract::[This corrects the article DOI: 10.3389/fneur.2019.00129.]. ...
journal_title:Frontiers in neurology
pub_type: 杂志文章,已发布勘误
doi:10.3389/fneur.2019.00371
更新日期:2019-03-27 00:00:00
abstract::Introduction: Parkinson's disease (PD) is a neurodegenerative disorder affecting a substantial proportion of the elderly Cypriot population. The objective of this study was to evaluate PD risk variants that have been identified previously in Genome Wide Association Studies (GWAS) and to find environmental factors that...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.01047
更新日期:2019-10-17 00:00:00
abstract:Objective:We investigated the reliability and accuracy of a bedside diagnostic algorithm for patients presenting with vertigo/unsteadiness to the emergency department. Methods:We enrolled consecutive adult patients presenting with vertigo/unsteadiness at a tertiary hospital. STANDING, the acronym for the four-step alg...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2017.00590
更新日期:2017-11-07 00:00:00
abstract:BACKGROUND AND PURPOSE:The aim of this study was to systematically review the efficacy and tolerability of gabapentin in the treatment of sleep disturbance in patients with medical illness. METHODS:PubMed was searched for randomized, double-blinded, placebo-controlled trials that reported sleep changes during gabapent...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2017.00316
更新日期:2017-07-14 00:00:00
abstract::Background: Cervical dystonia (CD) is a rare disorder, and health care providers might be unfamiliar with its presentation, thus leading to delay in the initial diagnosis. The lack of awareness displays the need to highlight the clinical features and treatment in cervical dystonia. In our cohort, we have identified an...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.591418
更新日期:2020-11-27 00:00:00
abstract:AIMS:Some central nervous system pathogens express neuraminidase (NA) on their surfaces. In the rat brain, a single intracerebroventricular (ICV) injection of NA induces myelin vacuolation in axonal tracts. Here, we explore the nature, the time course, and the role of the complement system in this damage. METHODS:The ...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2017.00078
更新日期:2017-03-07 00:00:00
abstract::Background: Spinocerebellar ataxia type 3/Machado-Joseph disease (SCA3/MJD) is one of the nine polyglutamine (polyQ) diseases and is caused by a CAG repeat expansion within the coding sequence of the ATXN3 gene. Few multimodal imaging analyses of the macro- and micro-structural changes have been performed. Methods: In...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.01025
更新日期:2019-09-24 00:00:00
abstract:Background:The electrophysiological evidence supporting the therapeutic efficacy of multiple transcranial direct current stimulation (tDCS) sessions on consciousness improvement in patients with prolonged disorders of consciousness (DOCs) has not been firmly established. Objectives:To assess the effects of repeated tD...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2017.00620
更新日期:2017-11-21 00:00:00
abstract::Despite the advent of and exciting advances in novel endovascular therapies, t-PA remains the only proven treatment for acute ischemic stroke to date. Although a variety of reasons likely underlie why past trials of endovascular strategies have been unsuccessful, we address in this perspective piece one critical unkno...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2013.00164
更新日期:2013-10-21 00:00:00
abstract::Background: Prolonged static whole-body roll-tilt has been shown to bias estimates of the direction of gravity when assessed by static paradigms such as the subjective visual vertical and the subjective haptic vertical. Objective: We hypothesized that these shifts are paradigm-independent and thus predicted a post-til...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.595975
更新日期:2020-10-15 00:00:00
abstract:OBJECTIVES:Use of oral contraceptive pills (OCP) increases the risk of cerebral venous sinus thrombosis (CVST). Whether this risk varies by type, duration, and other forms of hormonal contraceptives is largely unknown. This systematic review and meta-analysis update the current state of knowledge. METHODS:We performed...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2015.00007
更新日期:2015-02-02 00:00:00
abstract::This review begins with the history of the events starting with the death of Libby Zion that lead to the Bell Commission, that the studied her death and made recommendations for improvement that were codified into law in New York state as the 405 law that the ACGME essentially adopted in putting a cap on work hours an...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2010.00128
更新日期:2010-10-20 00:00:00
abstract::Non-linear relations of brain amyloid beta (Aβ) with task- based functional connectivity (tbFC) measured with functional magnetic resonance imaging (fMRI) have been reported in late middle age. Our objective was to examine the association between brain Aβ and resting-state functional connectivity (rsFC) in late middle...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.529930
更新日期:2020-10-06 00:00:00
abstract::Objective: Status epilepticus is a major emergency condition. The choice of antiepileptic drugs for second-line treatment after benzodiazepine remains controversial, including levetiracetam vs. fosphenytoin. We compare the safety of intravenous levetiracetam and fosphenytoin as a second-line treatment in patients with...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.00615
更新日期:2020-07-02 00:00:00
abstract:OBJECTIVE:(1) To determine the brain connectivity pattern associated with clinical rigidity scores in Parkinson's disease (PD) and (2) to determine the relation between clinically assessed rigidity and quantitative metrics of motor performance. BACKGROUND:Rigidity, the resistance to passive movement, is exacerbated in...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2013.00067
更新日期:2013-06-05 00:00:00
abstract::Background: Multiple Sclerosis Partners Advancing Technology and Health Solutions (MS PATHS) is the first example of a learning health system in multiple sclerosis (MS). This paper describes the initial implementation of MS PATHS and initial patient characteristics. Methods: MS PATHS is an ongoing initiative conducted...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.00632
更新日期:2020-08-07 00:00:00
abstract::Background: Mild traumatic brain injuries (mTBIs) are a significant social, sport, and military health issue. In spite of advances in the clinical management of these injuries, the underlying pathophysiology is not well-understood. There is a critical need to advance objective biomarkers, allowing the identification a...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2018.00468
更新日期:2018-06-20 00:00:00
abstract::Despite the clinical significance of post-stroke angiogenesis, a detailed phenotypic analysis of pre-stroke vascular remodeling and post-stroke angiogenesis had not yet been done in a model of focal ischemia. In this study, using BrdU-labeling of proliferating cells and immunofluorescence of pre- and post-stroke rats,...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2018.01014
更新日期:2018-11-27 00:00:00
abstract::Huntington disease (HD) is caused by an abnormally expanded cytosine-adenine-guanine (CAG) trinucleotide repeat in the HTT gene. Age and CAG-expansion number are related to age at diagnosis and can be used to index disease progression. However, observed onset-age variability suggests that other factors also modulate p...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00147
更新日期:2016-09-21 00:00:00
abstract::Hereditary spastic paraplegias (HSPs) are a heterogeneous group of genetic disorders with spastic paraparesis as the main clinical feature. Complex forms may co-occur with other motor, sensory, and cognitive impairment. A growing number of loci and genes are being identified, but still more than 50% of the patients re...
journal_title:Frontiers in neurology
pub_type:
doi:10.3389/fneur.2020.00041
更新日期:2020-02-14 00:00:00
abstract::Rett Syndrome (RTT) is a neurodevelopmental disorder caused by loss of function of the transcriptional regulator Methyl-CpG-Binding Protein 2 (MeCP2). In addition to the characteristic loss of hand function and spoken language after the first year of life, people with RTT also have a variety of physiological and auton...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.593554
更新日期:2020-10-30 00:00:00
abstract::Autoimmune inflammation of the limbic gray matter structures of the human brain has recently been identified as major cause of mesial temporal lobe epilepsy with interictal temporal epileptiform activity and slowing of the electroencephalogram, progressive memory disturbances, as well as a variety of other behavioral,...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2015.00163
更新日期:2015-07-15 00:00:00
abstract::Objective: The peak-to-peak amplitude of the p13-n23 wave in cervical vestibular evoked myogenic potential can increase after furosemide administration in patients with Meniere's disease [furosemide-loading VEMP (FVEMP) testing]. The examination is used to test for the presence of endolymphatic hydrops; we investigate...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2018.00636
更新日期:2018-08-03 00:00:00
abstract::Background: Patients with traumatic brain injury (TBI) exhibit a variable and unpredictable outcome. The proteins interleukin 10 (IL-10) and heart fatty acid-binding protein (H-FABP) have shown predictive values for the presence of intracranial lesions. Aim: To evaluate the individual and combined outcome prediction a...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.00376
更新日期:2020-06-02 00:00:00
abstract:INTRODUCTION:Limited evidence exists on effective interventions to improve knowledge of preventive medications in patients with chronic diseases, such as stroke. We investigated the effectiveness of a nurse-led intervention, where a component was to improve knowledge of prevention medications, in patients with stroke o...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00205
更新日期:2016-11-18 00:00:00
abstract::α-synuclein is involved in the pathogenesis of multiple system atrophy (MSA) and can be regulated by peripheral immune activation (PIA). We aimed to clarify the correlations between PIA and the prevalence of MSA and to analyze the role of PIA in the progression of the disease. A total of 321 patients with probable MSA...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.00658
更新日期:2020-07-07 00:00:00
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2017.00079
更新日期:2017-03-10 00:00:00