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https://www.readbyqxmd.com/read/28319282/stereotactic-radiosurgery-for-essential-tremor-retrospective-analysis-of-a-19-year-experience
#1
Ajay Niranjan, Sudesh S Raju, Ali Kooshkabadi, Edward Monaco, John C Flickinger, L Dade Lunsford
BACKGROUND: Essential Tremor (ET) is a common movement disorder that can be disabling. Initial treatment is in the form of medical therapies. Patients with medically refractory ET seek surgical intervention which include radiofrequency thalamotomy, deep brain stimulation, and radiosurgical thalamotomy. Radiosurgical thalamotomy is a minimally invasive surgical option which is especially valuable for elderly and high surgical risk patients. OBJECTIVE: The purpose of this study was to retrospectively analyze the outcomes of stereotactic radiosurgery for patients suffering from medically refractory essential tremor...
March 20, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28314812/improvement-in-arm-and-hand-function-after-a-stroke-with-task-oriented-training
#2
Sharon Israely, Gerry Leisman, Eli Carmeli
A man aged 77 years sustained a left-hemisphere stroke with right hemiparesis. After spending 10 days in the hospital, he was referred to an area rehabilitation centre. There he carried out daily physical, occupational and speech therapy, with an emphasis on task-oriented treatment. The patient's upper-extremity motor performance was evaluated at admission to the rehabilitation centre and before leaving the hospital by 3 different measurement tools: the upper-extremity motor part of the Fugl-Meyer assessment scale, electromyography in hand-reach and grasp and object manipulation and handwriting tasks...
March 17, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28290244/kinematic-and-pressure-features-of-handwriting-and-drawing-preliminary-results-between-patients-with-mild-cognitive-impairment-alzheimer-disease-and-healthy-controls
#3
Josep Garre-Olmo, Marcos Faúndez-Zanuy, Karmele López-de-Ipiña, Laia Calvó-Perxas, Oriol Turró-Garriga
BACKGROUND: Alzheimer's disease (AD) is the most common neurodegenerative dementia of old age, and the leading chronic disease contributor to disability and dependence among older people worldwide. Clinically, AD is characterized by a progressive cognitive decline that interferes with the ability to perform the activities of daily living. Handwriting and drawing are complex human activities that entail an intricate blend of cognitive, kinesthetic, and perceptual-motor features. OBJECTIVE: To compare the kinematic characteristics of handwriting and drawing between patients with AD, patients with mild cognitive impairment (MCI) and healthy controls...
March 9, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28283470/rheumatic-fever-with-severe-carditis-still-prevalent-in-the-south-west-pacific
#4
Taran Kaur Nandra, Nigel J Wilson, John Artrip, Bruno Pagis
Rheumatic heart disease (RHD) has a worldwide prevalence of 33 million cases and 270 000 deaths annually, making it the most common acquired heart disease in the world. There is a disparate global burden in developing countries. This case report aims to address the minimal RHD coverage by the international medical community. A Tahitian boy aged 10 years was diagnosed with advanced heart failure secondary to RHD at a local clinic. Previous, subtle symptoms of changes in handwriting and months of fever had gone unrecognised...
March 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28276960/effectiveness-of-a-self-regulated-remedial-program-for-handwriting-difficulties
#5
Hilde Van Waelvelde, Amy De Roubaix, Lien Steppe, Evy Troubleyn, Barbara De Mey, Griet Dewitte, Julie Debrabant, Dominique Van de Velde
BACKGROUND: Handwriting difficulties may have pervasive effects on a child's school performance. I Can! is a remedial handwriting program with a focus on self-regulated learning and applying motor learning principles combined with a behavioural approach. It is developed for typically developing children with handwriting problems. OBJECTIVE: The study aim was to evaluate the program's effectiveness. MATERIALS AND METHODS: Thirty-one children aged 7-8 year participated in a cross-over study...
March 5, 2017: Scandinavian Journal of Occupational Therapy
https://www.readbyqxmd.com/read/28261041/a-novel-hybrid-model-for-drawing-trace-reconstruction-from-multichannel-surface-electromyographic-activity
#6
Yumiao Chen, Zhongliang Yang
Recently, several researchers have considered the problem of reconstruction of handwriting and other meaningful arm and hand movements from surface electromyography (sEMG). Although much progress has been made, several practical limitations may still affect the clinical applicability of sEMG-based techniques. In this paper, a novel three-step hybrid model of coordinate state transition, sEMG feature extraction and gene expression programming (GEP) prediction is proposed for reconstructing drawing traces of 12 basic one-stroke shapes from multichannel surface electromyography...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28260812/expanding-the-developmental-models-of-writing-a-direct-and-indirect-effects-model-of-developmental-writing-diew
#7
Young-Suk Grace Kim, Christopher Schatschneider
We investigated direct and indirect effects of component skills on writing (DIEW) using data from 193 children in Grade 1. In this model, working memory was hypothesized to be a foundational cognitive ability for language and cognitive skills as well as transcription skills, which, in turn, contribute to writing. Foundational oral language skills (vocabulary and grammatical knowledge) and higher-order cognitive skills (inference and theory of mind) were hypothesized to be component skills of text generation (i...
2017: Journal of Educational Psychology
https://www.readbyqxmd.com/read/28253374/validity-and-reliability-of-a-new-tool-to-evaluate-handwriting-difficulties-in-parkinson-s-disease
#8
Evelien Nackaerts, Elke Heremans, Bouwien C M Smits-Engelsman, Sanne Broeder, Wim Vandenberghe, Bruno Bergmans, Alice Nieuwboer
BACKGROUND: Handwriting in Parkinson's disease (PD) features specific abnormalities which are difficult to assess in clinical practice since no specific tool for evaluation of spontaneous movement is currently available. OBJECTIVE: This study aims to validate the 'Systematic Screening of Handwriting Difficulties' (SOS-test) in patients with PD. METHODS: Handwriting performance of 87 patients and 26 healthy age-matched controls was examined using the SOS-test...
2017: PloS One
https://www.readbyqxmd.com/read/28222759/development-and-assessment-of-a-hand-assist-device-gripit
#9
Byungchul Kim, Hyunki In, Dae-Young Lee, Kyu-Jin Cho
BACKGROUND: Although various hand assist devices have been commercialized for people with paralysis, they are somewhat limited in terms of tool fixation and device attachment method. Hand exoskeleton robots allow users to grasp a wider range of tools but are heavy, complicated, and bulky owing to the presence of numerous actuators and controllers. The GRIPIT hand assist device overcomes the limitations of both conventional devices and exoskeleton robots by providing improved tool fixation and device attachment in a lightweight and compact device...
February 21, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28218589/visual-and-haptic-perception-training-to-improve-handwriting-skills-in-children-with-dysgraphia
#10
Shao-Hsia Chang, Nan-Ying Yu
We investigated a visual-perceptual and haptic-perceptual training program to enhance motor skills and Chinese handwriting performance among children with handwriting difficulties. The participants were 28 first- and second-grade children with handwriting difficulties. They were matched according to age and then randomly assigned into a control group or an experimental group. Participants in the experimental group received 12 sessions of a training program, whereas those in the control group received conventional handwriting training...
March 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28199175/sequential-prediction-of-literacy-achievement-for-specific-learning-disabilities-contrasting-in-impaired-levels-of-language-in-grades-4-to-9
#11
Elizabeth A Sanders, Virginia W Berninger, Robert D Abbott
Sequential regression was used to evaluate whether language-related working memory components uniquely predict reading and writing achievement beyond cognitive-linguistic translation for students in Grades 4 through 9 ( N = 103) with specific learning disabilities (SLDs) in subword handwriting (dysgraphia, n = 25), word reading and spelling (dyslexia, n = 60), or oral and written language (oral and written language learning disabilities, n = 18). That is, SLDs are defined on the basis of cascading level of language impairment (subword, word, and syntax/text)...
February 1, 2017: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/28190930/effective-beginning-handwriting-instruction-multi-modal-consistent-format-for-2-years-and-linked-to-spelling-and-composing
#12
Beverly Wolf, Robert D Abbott, Virginia W Berninger
In Study 1, the treatment group (N = 33 first graders, M = 6 years 10 months, 16 girls) received Slingerland multi-modal (auditory, visual, tactile, motor through hand, and motor through mouth) manuscript (unjoined) handwriting instruction embedded in systematic spelling, reading, and composing lessons; and the control group (N =16 first graders, M = 7 years 1 month, 7 girls) received manuscript handwriting instruction not systematically related to the other literacy activities. ANOVA showed both groups improved on automatic alphabet writing from memory; but ANCOVA with the automatic alphabet writing task as covariate showed that the treatment group improved significantly more than control group from the second to ninth month of first grade on dictated spelling and recognition of word-specific spellings among phonological foils...
February 2017: Reading and Writing
https://www.readbyqxmd.com/read/28190914/neuroanatomy-of-handwriting-and-related-reading-and-writing-skills-in-adults-and-children-with-and-without-learning-disabilities-french-american-connections
#13
Marieke Longcamp, Todd L Richards, Jean-Luc Velay, Virginia W Berninger
In this article, we present recent neuroimaging studies performed to identify the neural network involved in handwriting. These studies, carried out in adults and in children, suggest that the mastery of handwriting is based on the involvement of a network of brain structures whose involvement and inter-connection are specific to writing alphabet characters. This network is built upon the joint learning of writing and reading and depends on the level of expertise of the writer. In addition, a part of this graphomotor network is also brought into play during the identification letters during visual reading...
December 2016: Pratiques
https://www.readbyqxmd.com/read/28133634/idea-units-in-notes-and-summaries-for-read-texts-by-keyboard-and-pencil-in-middle-childhood-students-with-specific-learning-disabilities-cognitive-and-brain-findings
#14
Todd Richards, Stephen Peverly, Amie Wolf, Robert Abbott, Steven Tanimoto, Rob Thompson, William Nagy, Virginia Berninger
Seven children with dyslexia and/or dysgraphia (2 girls, 5 boys, M=11 years) completed fMRI connectivity scans before and after twelve weekly computerized lessons in strategies for reading source material, taking notes, and writing summaries by touch typing or groovy pencils. During brain scanning they completed two reading comprehension tasks-one involving single sentences and one involving multiple sentences. From before to after intervention, fMRI connectivity magnitude changed significantly during sentence level reading comprehension (from right angular gyrus→right Broca's) and during text level reading comprehension (from right angular gyrus→cingulate)...
September 2016: Trends in Neuroscience and Education
https://www.readbyqxmd.com/read/28131811/activation-of-writing-specific-brain-regions-when-reading-chinese-as-a-second-language-effects-of-training-modality-and-transfer-to-novel-characters
#15
Aurélie Lagarrigue, Marieke Longcamp, Jean Luc Anton, Bruno Nazarian, Laurent Prévot, Jean-Luc Velay, Fan Cao, Cheryl Frenck-Mestre
We examined the implication of training modality on the cortical representation of Chinese words in adult second language learners of Chinese. In particular, we tested the implication of the neural substrates of writing in a reading task. The brain network sustaining finger writing was defined neuroanatomically based on an independent functional localizer. We examined the brain activations elicited by Chinese words learned via writing vs. pronunciation, and by novel untrained words, within regions of interest (ROIs) defined according to the position of the activation peaks in the localizer, and at the whole brain level...
January 26, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28129407/long-term-experience-of-chinese-calligraphic-handwriting-is-associated-with-better-executive-functions-and-stronger-resting-state-functional-connectivity-in-related-brain-regions
#16
Wen Chen, Yong He, Yang Gao, Cuiping Zhang, Chuansheng Chen, Suyu Bi, Pin Yang, Yiwen Wang, Wenjing Wang
Chinese calligraphic handwriting (CCH) is a traditional art form that requires high levels of concentration and motor control. Previous research has linked short-term training in CCH to improvements in attention and memory. Little is known about the potential impacts of long-term CCH practice on a broader array of executive functions and their potential neural substrates. In this cross-sectional study, we recruited 36 practitioners with at least 5 years of CCH experience and 50 control subjects with no more than one month of CCH practice and investigated their differences in the three components of executive functions (i...
2017: PloS One
https://www.readbyqxmd.com/read/28126631/spatial-and-dynamical-handwriting-analysis-in-mild-cognitive-impairment
#17
Jacek Kawa, Adam Bednorz, Paula Stępień, Jarosław Derejczyk, Monika Bugdol
Background and Objectives Standard clinical procedure of Mild Cognitive Impairment (MCI) assessment employs time-consuming tests of psychological evaluation and requires the involvement of specialists. The employment of quantitative methods proves to be superior to clinical judgment, yet reliable, fast and inexpensive tests are not available. This study was conducted as a first step towards the development of a diagnostic tool based on handwriting. Methods In this paper the handwriting sample of a group of 37 patients with MCI (mean age 76...
March 1, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28113763/elastic-net-hypergraph-learning-for-image-clustering-and-semi-supervised-classification
#18
Qingshan Liu, Yubao Sun, Cantian Wang, Tongliang Liu, Dacheng Tao
Graph model is emerging as a very effective tool for learning the complex structures and relationships hidden in data. Generally, the critical purpose of graph-oriented learning algorithms is to construct an informative graph for image clustering and classification tasks. In addition to the classical K-nearestneighbor and r-neighborhood methods for graph construction, l1-graph and its variants are emerging methods for finding the neighboring samples of a center datum, where the corresponding ingoing edge weights are simultaneously derived by the sparse reconstruction coefficients of the remaining samples...
October 26, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28113628/a-multiple-label-guided-clustering-algorithm-for-historical-document-dating-and-localization
#19
Sheng He, Petros Samara, Jan Burgers, Lambert Schomaker
It is of essential importance for historians to know the date and place of origin of the documents they study. It would be a huge advancement for historical scholars if it would be possible to automatically estimate the geographical and temporal provenance of a handwritten document by inferring them from the handwriting style of such a document. We propose a multiple-label guided clustering algorithm to discover the correlations between the concrete low-level visual elements in historical documents and abstract labels, such as date and location...
August 24, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28110086/different-mechanisms-in-learning-different-second-languages-evidence-from-english-speakers-learning-chinese-and-spanish
#20
Fan Cao, Bethany L Sussman, Valeria Rios, Xin Yan, Zhao Wang, Gregory J Spray, Ryan M Mack
Word reading has been found to be associated with different neural networks in different languages, with greater involvement of the lexical pathway for opaque languages and greater invovlement of the sub-lexical pathway for transparent langauges. However, we do not know whether this language divergence can be demonstrated in second langauge learners, how learner's metalinguistic ability would modulate the langauge divergence, or whether learning method would interact with the language divergence. In this study, we attempted to answer these questions by comparing brain activations of Chinese and Spanish word reading in native English-speaking adults who learned Chinese and Spanish over a 2 week period under three learning conditions: phonological, handwriting, and passive viewing...
January 19, 2017: NeuroImage
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