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1.
Hand (N Y) ; 18(2): NP6-NP10, 2023 03.
Article in English | MEDLINE | ID: mdl-36281710

ABSTRACT

Congenital lack of elbow flexion results in significant disability and may be seen in conjunction with syndromes, plexopathies, neuromuscular disorders, or as an isolated muscular agenesis of elbow flexors. There are many tendon transfer options to address this issue, but there is a lack of data on the functional results in the pediatric population. In this series, we present 1 patient with isolated muscular agenesis of the biceps and brachialis musculotendinous units and another with this same muscular agenesis in the setting of arthrogryposis. They were treated with anterior ulnar nerve transposition and transfer of the long head of triceps tendon around 2 years of age resulting in functional elbow flexion in both patients.


Subject(s)
Elbow , Tendon Transfer , Humans , Child , Elbow/innervation , Tendon Transfer/methods , Arm , Muscle, Skeletal/surgery , Tendons
2.
Brain Sci ; 12(11)2022 Oct 28.
Article in English | MEDLINE | ID: mdl-36358388

ABSTRACT

The current study aimed to investigate attentional processing differences for circumscribed interest (CI) and non-CI objects in young Chinese children with autism spectrum condition (ASC) and typically developing (TD) controls. In Experiment 1, a visual preference task explored attentional allocation to cartoon CI and non-CI materials between the two groups. We found that ASC children (n = 22, 4.95 ± 0.59 years) exhibited a preference for CI-related objects compared to non-CI objects, and this effect was absent in the TD children (n = 22, 5.14 ± 0.44 years). Experiment 2 utilized the traditional gap-overlap paradigm (GOP) to investigate attentional disengagement from CI or non-CI items in both groups (ASC: n = 20, 5.92 ± 1.13 years; TD: n = 25, 5.77 ± 0.77 years). There were no group or stimulus interactions in this study. Experiment 3 adopted a modified GOP (MGOP) to further explore disengagement in the two groups (ASC: n = 20, 5.54 ± 0.95 years; TD: n = 24, 5.75 ± 0.52 years), and the results suggested that exogenous disengagement performance was preserved in the ASC group, but the children with ASC exhibited increased endogenous attentional disengagement compared to TD peers. Moreover, endogenous disengagement was influenced further in the presence of CI-related objects in the ASC children. The current results have implications for understanding how the nature of engagement and disengagement processes can contribute to differences in the development of core cognitive skills in young children with ASC.

3.
PLoS One ; 16(5): e0250998, 2021.
Article in English | MEDLINE | ID: mdl-33945576

ABSTRACT

The current study examined how emotional faces impact on attentional control at both involuntary and voluntary levels in children with and without autism spectrum disorder (ASD). A non-face single target was either presented in isolation or synchronously with emotional face distractors namely angry, happy and neutral faces. ASD and typically developing children made more erroneous saccades towards emotional distractors relative to neutral distractors in parafoveal and peripheral conditions. Remote distractor effects were observed on saccade latency in both groups regardless of distractor type, whereby time taken to initiate an eye movement to the target was longest in central distractor conditions, followed by parafoveal and peripheral distractor conditions. The remote distractor effect was greater for angry faces compared to happy faces in the ASD group. Proportions of failed disengagement trials from central distractors, for the first saccade, were higher in the angry distractor condition compared with the other two distractor conditions in ASD, and this effect was absent for the typical group. Eye movement results suggest difficulties in disengaging from fixated angry faces in ASD. Atypical disengagement from angry faces at the voluntary level could have consequences for the development of higher-level socio-communicative skills in ASD.


Subject(s)
Asian People/psychology , Attention/physiology , Autism Spectrum Disorder/physiopathology , Autism Spectrum Disorder/psychology , Emotions/physiology , Anger/physiology , Child , Child, Preschool , Eye Movements/physiology , Facial Expression , Female , Happiness , Humans , Male , Orientation, Spatial/physiology , Saccades/physiology , Social Perception/psychology
4.
Q J Exp Psychol (Hove) ; 73(11): 1921-1929, 2020 Nov.
Article in English | MEDLINE | ID: mdl-32513058

ABSTRACT

The "positivity effect" (PE) reflects an age-related increase in the preference for positive over negative information in attention and memory. The present experiment investigated whether Chinese and UK participants produce a similar PE. In one experiment, we presented pleasant, unpleasant, and neutral pictures simultaneously and participants decided which picture they liked or disliked on a third of trials, respectively. We recorded participants' eye movements during this task and compared time looking at, and memory for, pictures. The results suggest that older but not younger adults from both China and UK participant groups showed a preference to focus on and remember pleasant pictures, providing evidence of a PE in both cultures. Bayes Factor analysis supported these observations. These findings are consistent with the view that older people preferentially focus on positive emotional information, and that this effect is observed cross-culturally.


Subject(s)
Aging/psychology , Cross-Cultural Comparison , Emotions , Eye Movements , Adult , Aged , Aged, 80 and over , Attention , Bayes Theorem , China/ethnology , Humans , Memory , United Kingdom/ethnology , Young Adult
5.
J Autism Dev Disord ; 50(2): 500-512, 2020 Feb.
Article in English | MEDLINE | ID: mdl-31673908

ABSTRACT

The current study examined eye movement control in autistic (ASD) children. Simple targets were presented in isolation, or with central, parafoveal, or peripheral distractors synchronously. Sixteen children with ASD (47-81 months) and nineteen age and IQ matched typically developing children were instructed to look to the target as accurately and quickly as possible. Both groups showed high proportions (40%) of saccadic errors towards parafoveal and peripheral distractors. For correctly executed eye movements to the targets, centrally presented distractors produced the longest latencies (time taken to initiate eye movements), followed by parafoveal and peripheral distractor conditions. Central distractors had a greater effect in the ASD group, indicating evidence for potential atypical voluntary attentional control in ASD children.


Subject(s)
Attention , Autism Spectrum Disorder/physiopathology , Saccades , Asian People , Child , Child, Preschool , Female , Humans , Male
6.
Vision (Basel) ; 3(2)2019 May 24.
Article in English | MEDLINE | ID: mdl-31735823

ABSTRACT

Autism spectrum disorder (ASD) is neurodevelopmental condition principally characterised by impairments in social interaction and communication, and repetitive behaviours and interests. This article reviews the eye movement studies designed to investigate the underlying sampling or processing differences that might account for the principal characteristics of autism. Following a brief summary of a previous review chapter by one of the authors of the current paper, a detailed review of eye movement studies investigating various aspects of processing in autism over the last decade will be presented. The literature will be organised into sections covering different cognitive components, including language and social communication and interaction studies. The aim of the review will be to show how eye movement studies provide a very useful on-line processing measure, allowing us to account for observed differences in behavioural data (accuracy and reaction times). The subtle processing differences that eye movement data reveal in both language and social processing have the potential to impact in the everyday communication domain in autism.

7.
PLoS One ; 14(9): e0221891, 2019.
Article in English | MEDLINE | ID: mdl-31513606

ABSTRACT

In low-level perceptual tasks and reading tasks, deaf individuals show a redistribution of spatial visual attention toward the parafoveal and peripheral visual fields. In the present study, the experiment adopted the modified flanker paradigm and utilized a lexical decision task to investigate how these unique visual skills may influence foveal lexical access in deaf individuals. It was predicted that irrelevant linguistic stimuli presented in parafoveal vision, during a lexical decision task, would produce a larger interference effect for deaf college student readers if the stimuli acted as distractors during the task. The results showed there was a larger interference effect in deaf college student readers compared to the interference effect observed in participants with typical levels of hearing. Furthermore, deaf college student readers with low-skilled reading levels showed a larger interference effect than those with high-skilled reading levels. The current study demonstrates that the redistribution of spatial visual attention toward the parafoveal visual regions in deaf students impacts foveal lexical processing, and this effect is modulated by reading skill. The findings are discussed in relation to the potential effect that enhanced parafoveal attention may have on everyday reading for deaf individuals.


Subject(s)
Deafness/psychology , Fovea Centralis/physiopathology , Persons With Hearing Impairments/psychology , Students/psychology , Adolescent , Attention , Case-Control Studies , Deafness/physiopathology , Education of Hearing Disabled , Female , Humans , Language Tests , Male , Reading , Recognition, Psychology , Semantics , Spatial Navigation , Young Adult
8.
Disabil Rehabil ; 40(20): 2424-2432, 2018 10.
Article in English | MEDLINE | ID: mdl-28597701

ABSTRACT

PURPOSE: To enhance understanding of the relationship between upper limb and eye movements during reaching tasks in people with stroke. METHODS: Eye movements were recorded from 10 control participants and 8 chronic stroke participants during a visual orienting task (Experiment 1) and a series of reaching tasks (Experiment 2). Stroke participants completed the reaching tasks using (i) their less impaired upper limb, (ii) their more impaired upper limb without support, and (iii) their more impaired upper limb, with support (SaeboMAS gravitational support and/or electrical stimulation). Participants were tested individually and completed both experiments in the same session. RESULTS: Oculomotor control and the coordination between the upper limb and the oculomotor system were found to be intact in stroke participants when no limb movements were required, or when the less impaired upper limb was used. However, when the more impaired upper limb was used, success and accuracy in reaching decreased and patterns of eye movements changed, with an observed increase in eye movements to the limb itself. With upper limb support, patterns of hand-eye coordination were found to more closely resemble those of the control group. CONCLUSION: Deficits in upper limb motor systems result in changes in patterns of eye movement behavior during reaching tasks. These changes in eye movement behavior can be modulated by providing upper limb support. Implications for Rehabilitation Deficits in upper limb motor systems can result in changes in patterns of eye movement behavior during reaching tasks. Upper limb support can reduce deficits in hand-eye coordination. Stroke rehabilitation outcomes should consider motor and oculomotor performance.


Subject(s)
Eye Movements , Oculomotor Muscles/physiopathology , Stroke Rehabilitation/methods , Stroke , Upper Extremity/physiopathology , Aged , Female , Humans , Male , Middle Aged , Stroke/diagnosis , Stroke/physiopathology , Task Performance and Analysis , Treatment Outcome
9.
Autism Res ; 10(12): 1968-1980, 2017 Dec.
Article in English | MEDLINE | ID: mdl-28834350

ABSTRACT

Accuracy for reading comprehension and inferencing tasks has previously been reported as reduced for individuals with autism spectrum disorder (ASD), relative to typically developing (TD) controls. In this study, we used an eye movements and reading paradigm to examine whether this difference in performance accuracy is underpinned by differences in the inferential work required to compute a co-referential link. Participants read two sentences that contained a category noun (e.g., bird) that was preceded by and co-referred to an exemplar that was either typical (e.g., pigeon) or atypical (e.g., penguin). Both TD and ASD participants showed an effect of typicality for gaze durations upon the category noun, with longer times being observed when the exemplar was atypical, in comparison to typical. No group differences or interactions were detected for target processing, and verbal language proficiency was found to predict general reading and inferential skill. The only difference between groups was that individuals with ASD engaged in more re-reading than TD participants. These data suggest that readers with ASD do not differ in the efficiency with which they compute anaphoric links on-line during reading. Autism Res 2017, 10: 1968-1980. © 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Individuals with autism spectrum disorder (ASD) have previously been reported to have difficulties with reading comprehension. This study examined whether a difference in the speed with which individuals with ASD form connections between words (co-reference processing) may contribute to comprehension difficulties. No evidence was found to suggest that ASD readers differ to typically developing readers in the speed of co-reference processing. Therefore, this data would suggest that differences in co-reference processing are unlikely to account for reading comprehension difficulties in ASD.


Subject(s)
Autism Spectrum Disorder/physiopathology , Comprehension/physiology , Reading , Adult , Eye Movements , Female , Humans , Language , Male , Reaction Time/physiology
10.
Sci Rep ; 7(1): 1941, 2017 05 16.
Article in English | MEDLINE | ID: mdl-28512354

ABSTRACT

Hemispatial Neglect (HN) is a failure to allocate attention to a region of space opposite to where damage has occurred in the brain, usually the left side of space. It is widely documented that there are two types of neglect: egocentric neglect (neglect of information falling on the individual's left side) and allocentric neglect (neglect of the left side of each object, regardless of the position of that object in relation to the individual). We set out to address whether neglect presentation could be modified from egocentric to allocentric through manipulating the task demands whilst keeping the physical stimulus constant by measuring the eye movement behaviour of a single group of neglect patients engaged in two different tasks (copying and tracing). Eye movements and behavioural data demonstrated that patients exhibited symptoms consistent with egocentric neglect in one task (tracing), and allocentric neglect in another task (copying), suggesting that task requirements may influence the nature of the neglect symptoms produced by the same individual. Different task demands may be able to explain differential neglect symptoms in some individuals.


Subject(s)
Egocentrism , Perceptual Disorders/psychology , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Perceptual Disorders/diagnosis , Stroke/diagnosis , Stroke/psychology , Tomography, X-Ray Computed
11.
Q J Exp Psychol (Hove) ; : 1-27, 2017 Apr 24.
Article in English | MEDLINE | ID: mdl-28434395

ABSTRACT

In a single eye movement experiment we investigated the effects of context on the time course of local and global anomaly processing during reading in adults with Autism Spectrum Disorder (ASD). In one condition short paragraph texts contained anomalous target words. Detection of the anomaly was only possible through evaluation of word meaning in relation to the global context of the whole paragraph (Passage Level Anomalies). In another condition the anomaly could be detected via computation of a local thematic violation within a single sentence embedded in the paragraph (Sentence Level Anomalies). For the sentence level anomalies the ASD group, in contrast with the typically developing (TD) group, showed early detection of the anomaly as indexed by regressive eye movements from the critical target word upon fixation. Conversely, for the passage level anomalies, and in contrast with the ASD group, the TD group showed early detection of the anomaly, with increased regressive eye movements once the critical word had been fixated. The reversal of the pattern of regression path data for the two groups, for the sentence and passage level anomalies, is discussed in relation to cognitive accounts of ASD.

12.
J Autism Dev Disord ; 47(7): 2039-2053, 2017 07.
Article in English | MEDLINE | ID: mdl-28432451

ABSTRACT

The on-line use of world knowledge during reading was examined in adults with autism spectrum disorder (ASD). Both ASD and typically developed adults read sentences that included plausible, implausible and anomalous thematic relations, as their eye movements were monitored. No group differences in the speed of detection of the anomalous violations were found, but the ASD group showed a delay in detection of implausible thematic relations. These findings suggest that there are subtle differences in the speed of world knowledge processing during reading in ASD.


Subject(s)
Autism Spectrum Disorder/physiopathology , Comprehension , Reading , Adult , Eye Movements , Female , Humans , Male
13.
Article in English | MEDLINE | ID: mdl-28044017

ABSTRACT

We explored the influence of early scene analysis and visible object characteristics on eye movements when searching for objects in photographs of scenes. On each trial, participants were shown sequentially either a scene preview or a uniform grey screen (250 ms), a visual mask, the name of the target and the scene, now including the target at a likely location. During the participant's first saccade during search, the target location was changed to: (i) a different likely location, (ii) an unlikely but possible location or (iii) a very implausible location. The results showed that the first saccade landed more often on the likely location in which the target re-appeared than on unlikely or implausible locations, and overall the first saccade landed nearer the first target location with a preview than without. Hence, rapid scene analysis influenced initial eye movement planning, but availability of the target rapidly modified that plan. After the target moved, it was found more quickly when it appeared in a likely location than when it appeared in an unlikely or implausible location. The findings show that both scene gist and object properties are extracted rapidly, and are used in conjunction to guide saccadic eye movements during visual search.This article is part of the themed issue 'Auditory and visual scene analysis'.


Subject(s)
Eye Movements , Reaction Time , Visual Perception , Adult , Female , Humans , Male , Saccades , Young Adult
14.
Behav Brain Sci ; 40: e147, 2017 01.
Article in English | MEDLINE | ID: mdl-29342609

ABSTRACT

The Functional Visual Field (FVF) offers explanatory power. To us, it relates to existing literature on the flexibility of attentional focus in visual search and reading (Eriksen & St. James 1986; McConkie & Rayner 1975). The target article promotes reflection on existing findings. Here we consider the FVF as a mechanism in the Prevalence Effect (PE) in visual search.


Subject(s)
Attention , Visual Fields , Prevalence
15.
J Exp Psychol Learn Mem Cogn ; 43(1): 109-127, 2017 01.
Article in English | MEDLINE | ID: mdl-27504678

ABSTRACT

In 2 experiments, eye tracking methodology was used to assess on-line lexical, syntactic and semantic processing in autism spectrum disorder (ASD). In Experiment 1, lexical identification was examined by manipulating the frequency of target words. Both typically developed (TD) and ASD readers showed normal frequency effects, suggesting that the processes TD and ASD readers engage in to identify words are comparable. In Experiment 2, syntactic parsing and semantic interpretation requiring the on-line use of world knowledge were examined, by having participants read garden path sentences containing an ambiguous prepositional phrase. Both groups showed normal garden path effects when reading low-attached sentences and the time course of reading disruption was comparable between groups. This suggests that not only do ASD readers hold similar syntactic preferences to TD readers, but also that they use world knowledge on-line during reading. Together, these experiments demonstrate that the initial construction of sentence interpretation appears to be intact in ASD. However, the finding that ASD readers skip target words less often in Experiment 2, and take longer to read sentences during second pass for both experiments, suggests that they adopt a more cautious reading strategy and take longer to evaluate their sentence interpretation prior to making a manual response. (PsycINFO Database Record


Subject(s)
Autism Spectrum Disorder/physiopathology , Benchmarking , Comprehension/physiology , Eye Movements/physiology , Reading , Adolescent , Adult , Concept Formation , Female , Humans , Linguistics , Male , Middle Aged , Models, Statistical , Online Systems , Reaction Time/physiology , Semantics , Young Adult
16.
Autism Res ; 9(8): 879-87, 2016 08.
Article in English | MEDLINE | ID: mdl-26614312

ABSTRACT

Adults with High Functioning Autism Spectrum Disorders (ASD) viewed scenes with people in them, while having their eye movements recorded. The task was to indicate, using a button press, whether the pictures were normal, or in some way weird or odd. Oddities in the pictures were categorized as violations of either perceptual or social norms. Compared to a Typically Developed (TD) control group, the ASD participants were equally able to categorize the scenes as odd or normal, but they took longer to respond. The eye movement patterns showed that the ASD group made more fixations and revisits to the target areas in the odd scenes compared with the TD group. Additionally, when the ASD group first fixated the target areas in the scenes, they failed to initially detect the social oddities. These two findings have clear implications for processing difficulties in ASD for the social domain, where it is important to detect social cues on-line, and where there is little opportunity to go back and recheck possible cues in fast dynamic interactions. Autism Res 2016, 9: 879-887. © 2015 International Society for Autism Research, Wiley Periodicals, Inc.


Subject(s)
Autism Spectrum Disorder/physiopathology , Cognition/physiology , Eye Movements/physiology , Social Behavior , Adolescent , Adult , Attention/physiology , Cues , Female , Humans , Male , Middle Aged , Young Adult
17.
Autism Res ; 8(6): 749-60, 2015 Dec.
Article in English | MEDLINE | ID: mdl-25962666

ABSTRACT

Previous research has suggested that individuals with Autism Spectrum Disorders (ASD) have difficulties understanding others communicative intent and with using contextual information to correctly interpret irony. We recorded the eye movements of typically developing (TD) adults ASD adults when they read statements that could either be interpreted as ironic or non-ironic depending on the context of the passage. Participants with ASD performed as well as TD controls in their comprehension accuracy for speaker's statements in both ironic and non-ironic conditions. Eye movement data showed that for both participant groups, total reading times were longer for the critical region containing the speaker's statement and a subsequent sentence restating the context in the ironic condition compared to the non-ironic condition. The results suggest that more effortful processing is required in both ASD and TD participants for ironic compared with literal non-ironic statements, and that individuals with ASD were able to use contextual information to infer a non-literal interpretation of ironic text. Individuals with ASD, however, spent more time overall than TD controls rereading the passages, to a similar degree across both ironic and non-ironic conditions, suggesting that they either take longer to construct a coherent discourse representation of the text, or that they take longer to make the decision that their representation of the text is reasonable based on their knowledge of the world.


Subject(s)
Autism Spectrum Disorder/physiopathology , Comprehension/physiology , Eye Movements/physiology , Reading , Adolescent , Adult , Autism Spectrum Disorder/psychology , Female , Humans , Male , Middle Aged , Young Adult
18.
PLoS One ; 10(4): e0121372, 2015.
Article in English | MEDLINE | ID: mdl-25880585

ABSTRACT

The 'Positive Effect' is defined as the phenomenon of preferential cognitive processing of positive affective information, and avoidance or dismissal of negative affective information in the social environment. The 'Positive Effect' is found for older people compared with younger people in western societies and is believed to reflect a preference for positive emotional regulation in older adults. It is not known whether such an effect is Universal, and in East Asian cultures, there is a highly controversial debate concerning this question. In the current experiment we explored whether Chinese older participants showed a 'Positive Effect' when they inspected picture pairs that were either a positive or a negative picture presented with a neutral picture, or a positive and negative picture paired together. The results indicated that both groups of participants showed an attentional bias to both pleasant (more processing of) and unpleasant pictures (initial orienting to) when these were paired with neutral pictures. When pleasant and unpleasant pictures were paired together both groups showed an initial orientation bias for the pleasant picture, but the older participants showed this bias for initial orienting and increased processing measures, providing evidence of a 'Positive Effect' in older Chinese adults.


Subject(s)
Eye Movements , Adolescent , Adult , China , Female , Humans , Male , Young Adult
19.
J Vis ; 15(2)2015 Feb 04.
Article in English | MEDLINE | ID: mdl-25761345

ABSTRACT

We (Walker & Benson, 2013) reported studies in which the spatial effects of distractors on the remote distractor effect (RDE) and saccadic inhibition (SI) were examined. Distractors remote from the target increased mean latency and the skew of the distractor-related distributions, without the presence of dips that are regarded as the hallmark of SI. We further showed that early onset distractors had similar effects although these would not be consistent with existing estimates of the duration of SI (of around 60-70 ms). McIntosh and Buonocore (2014) report a simulation showing that skewed latency distributions can arise from the putative SI mechanism and they also highlighted a number of methodological considerations regarding the RDE and SI as measures of saccadic distractor effects (SDEs). Here we evaluate these claims and note that the measures of SI obtained by subtracting latency distributions (specifically the decrease in saccade frequency--or dip duration) are no more diagnostic of a single inhibitory process, or more sensitive indicators of it, than is median latency. Furthermore the evidence of inhibitory influences of small distractors presented close to the target is incompatible with the explanations of both the RDE and SI. We conclude that saccadic distractor effects may be a more inclusive term to encompass the different characteristics of behavioral effects of underlying saccade target selection.


Subject(s)
Perceptual Distortion/physiology , Saccades/physiology , Attention/physiology , Humans , Inhibition, Psychological , Reaction Time/physiology , Space Perception/physiology
20.
J Neuroeng Rehabil ; 11: 105, 2014 Jun 30.
Article in English | MEDLINE | ID: mdl-24981060

ABSTRACT

BACKGROUND: Functional electrical stimulation (FES) during repetitive practice of everyday tasks can facilitate recovery of upper limb function following stroke. Reduction in impairment is strongly associated with how closely FES assists performance, with advanced iterative learning control (ILC) technology providing precise upper-limb assistance. The aim of this study is to investigate the feasibility of extending ILC technology to control FES of three muscle groups in the upper limb to facilitate functional motor recovery post-stroke. METHODS: Five stroke participants with established hemiplegia undertook eighteen intervention sessions, each of one hour duration. During each session FES was applied to the anterior deltoid, triceps, and wrist/finger extensors to assist performance of functional tasks with real-objects, including closing a drawer and pressing a light switch. Advanced model-based ILC controllers used kinematic data from previous attempts at each task to update the FES applied to each muscle on the subsequent trial. This produced stimulation profiles that facilitated accurate completion of each task while encouraging voluntary effort by the participant. Kinematic data were collected using a Microsoft Kinect, and mechanical arm support was provided by a SaeboMAS. Participants completed Fugl-Meyer and Action Research Arm Test clinical assessments pre- and post-intervention, as well as FES-unassisted tasks during each intervention session. RESULTS: Fugl-Meyer and Action Research Arm Test scores both significantly improved from pre- to post-intervention by 4.4 points. Improvements were also found in FES-unassisted performance, and the amount of arm support required to successfully perform the tasks was reduced. CONCLUSIONS: This feasibility study indicates that technology comprising low-cost hardware fused with advanced FES controllers accurately assists upper limb movement and may reduce upper limb impairments following stroke.


Subject(s)
Electric Stimulation Therapy/methods , Recovery of Function , Stroke Rehabilitation , Upper Extremity/physiopathology , Adult , Biomechanical Phenomena , Elbow/physiopathology , Feasibility Studies , Female , Hemiplegia/etiology , Hemiplegia/physiopathology , Hemiplegia/rehabilitation , Humans , Male , Middle Aged , Shoulder/physiopathology , Stroke/complications , Stroke/physiopathology , Wrist/physiopathology
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