1,721,071 research outputs found
apparato di interfaccia uomo - macchina per scopo riabilitativo e metodo di riabilitazione
No full textUn apparato di interfaccia uomo-macchina per scopo riabilitativo e un metodo di riabilitazione. L’apparato comprende almeno un sensore adatto a rilevare la presenza di onde cerebrali di un paziente, una interfaccia munita di uno schermo che rappresenta almeno un target con relativo puntatore, un attuatore o robot operativamente connesso all’interfaccia in modo da risultare azionabile da questa. Vantaggiosamente, il robot comprende mezzi sensoriali, quali una telecamera e/o un microfono, adatti a captare segnali visivi e sonori dall’ambiente e a trasmetterli in tempo reale al paziente, tramite l’interfaccia
EEG Signal Processing for Post-Stroke Motor Rehabilitation
No full textThe purpose of post-stroke rehabilitation consists in finding appropriate training to make patients become autonomous in their daily life activities by improving the ability to express properly their minds, recognize the ambient where they are and improve the mobility of their impaired limbs. In case of successful rehabilitation people could return to their normal activities while, if only partial recovery had occurred, they could be able to perform independently some basic activities at least. Even a partial success is a great improvement for patients, their families and even societies. In fact, if a smaller amount of people has to be assisted with intense and expensive 24-hours care, societies can fund money to other projects. We limit our analysis to motor rehabilitation procedures to improve patient performance in activities like reaching or grasping
Lateralization of Motor Cortex Excitability in Stroke Patients during Action Observation: A TMS Study.
Full text linkAction observation activates the same motor areas as those involved in the performance of the observed actions and promotes
functional recovery following stroke. Movement observation is now considered a promising tool for motor rehabilitation, by
allowing patients to train their motor functions when voluntarymovement is partially impaired.We asked chronic-stroke patients,
affected by either left (LHD) or right hemisphere (RHD) lesions, to observe either a left or right hand, while grasping a small target
(eliciting a precision grip) or a large target (eliciting a whole hand grasp directed towards a target object). To better understand
the effects of action observation on damaged motor circuits, we used transcranial magnetic stimulation (TMS) to induce motor
evoked potentials (MEP) from two muscles of the unaffected hand in 10 completely hemiplegic participants. Results revealed that
LHD patients showed MEP facilitation on the right (contralesional) M1 during action observation of hand-object interactions. In
contrast, results showed no facilitation of the left (contralesional) M1 in RHD patients. Our results confirm that action observation
might have a positive influence on the recovery of motor functions after stroke. Activating the motor system by means of action
observation might provide a mechanism for improving function, at least in LHD patients
Modulation of motor excitability induced by action observation in stroke patients
No full textAction observation activates the same motor areas as those involved in the performance of the observed actions and promotes
functional recovery following stroke. Movement observation is now considered a promising tool for motor rehabilitation, by
allowing patients to train their motor functions when voluntarymovement is partially impaired.We asked chronic-stroke patients,
affected by either left (LHD) or right hemisphere (RHD) lesions, to observe either a left or right hand, while grasping a small target
(eliciting a precision grip) or a large target (eliciting a whole hand grasp directed towards a target object). To better understand
the effects of action observation on damaged motor circuits, we used transcranial magnetic stimulation (TMS) to induce motor
evoked potentials (MEP) from two muscles of the unaffected hand in 10 completely hemiplegic participants. Results revealed that
LHD patients showed MEP facilitation on the right (contralesional) M1 during action observation of hand-object interactions. In
contrast, results showed no facilitation of the left (contralesional) M1 in RHD patients. Our results confirm that action observation
might have a positive influence on the recovery of motor functions after stroke. Activating the motor system by means of action
observation might provide a mechanism for improving function, at least in LHD patients
An application of Brain Computer Interface in chronic stroke to improve arm reaching function exploiting Operant Learning strategy and Brain Plasticity
No full textThe paper deals with a specific kind of BCI application implemented with the aim of recovering the reaching ability of mild impaired stroke survivors. The overall idea is to take advantage of the plasticity of the brain to make the subject artificially learn alternative neural paths to control the arm movement again, bypassing the injured area thanks to a BCI system with an EEG-related force provided as a real-time feedback during the training period. Preliminary results have shown improvements in the kinematics of the upper limb motion of a first patient that performed this experimental rehabilitative program. Then, this BCI application is expected to enter soon the daily clinical practise as a useful tool besides the standard rehabilitation therapy
Covert visuospatial attention orienting in a brain-computer interface for amyotrophic lateral sclerosis patients.
No full text
Correction to: Combined botulinum toxin type A and electrical stimulation in individuals with C5-C6 and C6-C7 tetraplegia: a pilot study (Spinal Cord Series and Cases, (2020), 6, 1, (70), 10.1038/s41394-020-0317-2)
No full textThe original version of this Article contained an error in the spelling of the authors Francesco Piccione, Paolo Tonin, Antonio Cerasa and Stefano Masiero, which were incorrectly given as Piccione Francesco, Tonin Paolo, Cerasa Antonio, and Masiero Stefano, respectively. This has now been corrected in both the PDF and HTML versions of the Article
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Combined botulinum toxin type A and electrical stimulation in individuals with C5–C6 and C6–C7 tetraplegia: a pilot study
Full text linkStudy design: Single-blind pilot study. Objectives: (1) To evaluate combined BoNT-A injection of spastic antagonistic muscles and ES of wrist extensors in order to improve hand function in incomplete cervical SCI patients. (2) To identify prognostic indicators of hand improvements, as a function of motor levels of injury. Setting: Ten incomplete asymmetric SCI tetraplegics admitted to San Camillo Hospital (Venezia, Italy), who were not able to perform automatic grasping, were enrolled in the study. A better motor level (BML) C6–C7 and worse motor level (WML) C5–C6 were assigned to take into account asymmetric motor strength. Methods: Administration of 100–200 UI BoNT-A per limb into flexor carpi radialis (FCR), extensor digitorum communis (EDC), brachial biceps (BB), and pectoralis major (PM) was performed. This was in conjunction with 6 weeks of 30-min ES sessions repeated three times a day for 6 days a week in wrist extensor muscles, and 6 weeks of 30-min hand rehabilitation for 6 days a week. Assessments included wrist Range of Motion (w-RoM), Modified Ashworth Score (MAS), Functional Independence Measure motor scores (FIM motor), and Nine Hole Peg Test (NHPT). Results: Treatments produced a significant reduction in motor spasticity (MAS) and better dexterity (NHPT) in the C6–C7 BML with respect to the WML cases (p level = 0.007; p = 0.01, respectively). FIM motor scores improved more in BML (median: 20; range 20/22) than in WML (median: 10; range 8/17). Conclusions: Hand function improvement, determined by combined BONT-A and ES, was better in C6–C7 than in C5–C6 SCI patients
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