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https://www.readbyqxmd.com/read/29165966/merging-an-activity-tracker-with-systemchange%C3%A2-to-improve-physical-activity-in-older-kidney-transplant-recipients
#1
Tara O'Brien, Donna Hathaway, Cynthia L Russell, Shirley M Moore
Motivational strategies to increase adherence to a long-term physical activity regimen have been unsuccessful for kidney transplant recipients. We propose a theory-based SystemCHANGE™ + Activity Tracker framework. The SystemCHANGE™ + Activity Tracker approach combines small, individual-driven experiments for increasing physical activity with visual feedback from the wireless activity tracker, which enables clients to study their progress in increasing physical activity. The SystemCHANGE™ + Activity Tracker approach is designed to empower kidney transplant recipients to improve and maintain their physical activity behavior...
March 2017: Nephrology Nursing Journal: Journal of the American Nephrology Nurses' Association
https://www.readbyqxmd.com/read/29165915/development-and-implementation-of-a-radiation-therapy-incident-learning-system-compatible-with-local-workflow-and-a-national-taxonomy
#2
Logan Montgomery, Palma Fava, Carolyn R Freeman, Tarek Hijal, Ciro Maietta, William Parker, John Kildea
PURPOSE: Collaborative incident learning initiatives in radiation therapy promise to improve and standardize the quality of care provided by participating institutions. However, the software interfaces provided with such initiatives must accommodate all participants and thus are not optimized for the workflows of individual radiation therapy centers. This article describes the development and implementation of a radiation therapy incident learning system that is optimized for a clinical workflow and uses the taxonomy of the Canadian National System for Incident Reporting - Radiation Treatment (NSIR-RT)...
November 22, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29163123/closed-loop-hybrid-gaze-brain-machine-interface-based-robotic-arm-control-with-augmented-reality-feedback
#3
Hong Zeng, Yanxin Wang, Changcheng Wu, Aiguo Song, Jia Liu, Peng Ji, Baoguo Xu, Lifeng Zhu, Huijun Li, Pengcheng Wen
Brain-machine interface (BMI) can be used to control the robotic arm to assist paralysis people for performing activities of daily living. However, it is still a complex task for the BMI users to control the process of objects grasping and lifting with the robotic arm. It is hard to achieve high efficiency and accuracy even after extensive trainings. One important reason is lacking of sufficient feedback information for the user to perform the closed-loop control. In this study, we proposed a method of augmented reality (AR) guiding assistance to provide the enhanced visual feedback to the user for a closed-loop control with a hybrid Gaze-BMI, which combines the electroencephalography (EEG) signals based BMI and the eye tracking for an intuitive and effective control of the robotic arm...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/29162459/eeg-neurofeedback-training-of-beta-band-12-22hz-affects-alpha-and-beta-frequencies-a-controlled-study-of-a-healthy-population
#4
Katarzyna Jurewicz, Katarzyna Paluch, Ewa Kublik, Jacek Rogala, Mirosław Mikicin, Andrzej Wróbel
The frequency-function relation of various EEG bands has inspired EEG-neurofeedback procedures intending to improve cognitive abilities in numerous clinical groups. In this study, we administered EEG-neurofeedback (EEG-NFB) to a healthy population to determine the efficacy of this procedure. We evaluated feedback manipulation in the beta band (12-22Hz), known to be involved in visual attention processing. Two groups of healthy adults were trained to either up- or down-regulate beta band activity mutual control...
November 18, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29162001/a-single-continuously-applied-control-policy-for-modeling-reaching-movements-with-and-without-perturbation
#5
Zhe Li, Pietro Mazzoni, Sen Song, Ning Qian
It has been debated whether kinematic features, such as the number of peaks or decomposed submovements in a velocity profile, indicate the number of discrete motor impulses or result from a continuous control process. The debate is particularly relevant for tasks involving target perturbation, which can alter movement kinematics. To simulate such tasks, finite-horizon models require two preset movement durations to compute two control policies before and after the perturbation. Another model employs infinite- and finite-horizon formulations to determine, respectively, movement durations and control policies, which are updated every time step...
November 21, 2017: Neural Computation
https://www.readbyqxmd.com/read/29161965/i-am-there-%C3%A2-but-not-quite-an-unfaithful-mirror-that-reduces-feelings-of-ownership-and-agency
#6
Noreen O'Sullivan, Christophe de Bezenac, Andrea Piovesan, Hannah Cutler, Rhiannon Corcoran, David Fenyvesi, Marco Bertamini
The experience of seeing one's own face in a mirror is a common experience in daily life. Visual feedback from a mirror is linked to a sense of identity. We developed a procedure that allowed individuals to watch their own face, as in a normal mirror, or with specific distortions (lag) for active movement or passive touch. By distorting visual feedback while the face is being observed on a screen, we document an illusion of reduced embodiment. Participants made mouth movements, while their forehead was touched with a pen...
January 1, 2017: Perception
https://www.readbyqxmd.com/read/29161626/the-effect-of-augmented-somatosensory-feedback-on-standing-postural-sway
#7
Angela Smalley, Scott C White, Robert Burkard
Impaired balance resulting from reduced postural control occurs with aging and various medical conditions. Sensory input for balance control is provided by the visual, vestibular and somatosensory systems. Previous research suggests that increased proprioceptive feedback from various lower extremity devices improves balance. Mixed results have been reported with the use of orthoses such as ankle foot orthoses (AFOs). In this study, 20 healthy subjects wore footplates in their shoes or straps around their lower legs in order to imitate the somatosensory feedback produced by wearing AFOs, but without providing ankle restriction...
November 14, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29161359/recurrent-processing-of-contour-integration-in-the-human-visual-cortex-as-revealed-by-fmri-guided-tms
#8
Ya Li, Yonghui Wang, Sheng Li
Contour integration is a critical step in visual perception because it groups discretely local elements into perceptually global contours. Previous investigations have suggested that striate and extrastriate visual areas are involved in this mid-level processing of visual perception. However, the temporal dynamics of these areas in the human brain during contour integration is less understood. The present study used functional magnetic resonance imaging-guided transcranial magnetic stimulation (TMS) to briefly disrupt 1 of 2 visual areas (V1/V2 and V3B) and examined the causal contributions of these areas to contour detection...
November 17, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29157414/synchronizing-the-tracking-eye-movements-with-the-motion-of-a-visual-target-basic-neural-processes
#9
Laurent Goffart, Clara Bourrelly, Julie Quinet
In primates, the appearance of an object moving in the peripheral visual field elicits an interceptive saccade that brings the target image onto the foveae. This foveation is then maintained more or less efficiently by slow pursuit eye movements and subsequent catch-up saccades. Sometimes, the tracking is such that the gaze direction looks spatiotemporally locked onto the moving object. Such a spatial synchronism is quite spectacular when one considers that the target-related signals are transmitted to the motor neurons through multiple parallel channels connecting separate neural populations with different conduction speeds and delays...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29157002/effects-of-circadian-clock-protein-per1b-on-zebrafish-visual-functions
#10
Ke Nie, Kun Wang, Deng-Feng Huang, Yu-Bin Huang, Wu Yin, Da-Long Ren, Han Wang, Bing Hu
The circadian clock is an endogenous and entrainable time-keeping mechanism with a period of approximately 24 h, operated by transcription/translation feedback loops composed of circadian clock genes and their proteins. The visual system displays robust circadian changes. Relatively little, however, is known about the mechanisms underlying visual circadian rhythmicity. Zebrafish period1b (per1b), as a canonical circadian clock gene, is involved in circadian regulation. Here, we observed that zebrafish per1b mutants exhibit visual defects including reduced behavioral contrast sensitivity and significant retinal dopaminergic deficiency...
November 20, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29153043/effectiveness-of-mirror-therapy-motor-imagery-and-virtual-feedback-on-phantom-limb-pain-following-amputation-a-systematic-review
#11
Laura Herrador Colmenero, Jose Manuel Perez Marmol, Celia Martí-García, María de Los Ángeles Querol Zaldivar, Rosa María Tapia Haro, Adelaida María Castro Sánchez, María Encarnación Aguilar-Ferrándiz
BACKGROUND: Phantom limb pain is reported in 50%-85% of people with amputation. Clinical interventions in treating central pain, such as mirror therapy, motor imagery, or virtual visual feedback, could redound in benefits to amputee patients with phantom limb pain. OBJECTIVES: To provide an overview of the effectiveness of different techniques for treating phantom limb pain in amputee patients. STUDY DESIGN: Systematic review. METHODS: A computerized literature search up to April 2017 was performed using the following databases: PubMed, Scopus, CINAHL, MEDLINE, ProQuest, PEDro, EBSCOhost, and Cochrane Plus...
November 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/29151194/highly-immersive-virtual-reality-laparoscopy-simulation-development-and-future-aspects
#12
Tobias Huber, Tom Wunderling, Markus Paschold, Hauke Lang, Werner Kneist, Christian Hansen
PURPOSE: Virtual reality (VR) applications with head-mounted displays (HMDs) have had an impact on information and multimedia technologies. The current work aimed to describe the process of developing a highly immersive VR simulation for laparoscopic surgery. METHODS: We combined a VR laparoscopy simulator (LapSim) and a VR-HMD to create a user-friendly VR simulation scenario. Continuous clinical feedback was an essential aspect of the development process. We created an artificial VR (AVR) scenario by integrating the simulator video output with VR game components of figures and equipment in an operating room...
November 18, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29149617/decoding-early-and-late-cortical-contributions-to-individuation-of-attended-and-unattended-objects
#13
Claire K Naughtin, Jason B Mattingley, Angela D Bender, Paul E Dux
To isolate a visual stimulus as a unique object with a specific spatial location and time of occurrence, it is necessary to first register (individuate) the stimulus as a distinct perceptual entity. Recent investigations into the neural substrates of object individuation have suggested it is subserved by a distributed neural network, but previous manipulations of individuation load have introduced extraneous visual confounds, which might have yielded ambiguous findings, particularly in early cortical areas...
November 8, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29148845/speech-recovery-and-language-plasticity-can-be-facilitated-by-sensori-motor-fusion-training-in-chronic-non-fluent-aphasia-a-case-report-study
#14
Célise Haldin, Audrey Acher, Louise Kauffmann, Thomas Hueber, Emilie Cousin, Pierre Badin, Pascal Perrier, Diandra Fabre, Dominic Perennou, Olivier Detante, Assia Jaillard, Hélène Lœvenbruck, Monica Baciu
The rehabilitation of speech disorders benefits from providing visual information which may improve speech motor plans in patients. We tested the proof of concept of a rehabilitation method (Sensori-Motor Fusion, SMF; Ultraspeech player) in one post-stroke patient presenting chronic non-fluent aphasia. SMF allows visualisation by the patient of target tongue and lips movements using high-speed ultrasound and video imaging. This can improve the patient's awareness of his/her own lingual and labial movements, which can, in turn, improve the representation of articulatory movements and increase the ability to coordinate and combine articulatory gestures...
November 17, 2017: Clinical Linguistics & Phonetics
https://www.readbyqxmd.com/read/29148137/brain-computer-interfaces-with-multi-sensory-feedback-for-stroke-rehabilitation-a-case-study
#15
Danut C Irimia, Woosang Cho, Rupert Ortner, Brendan Z Allison, Bogdan E Ignat, Guenter Edlinger, Christoph Guger
Conventional therapies do not provide paralyzed patients with closed-loop sensorimotor integration for motor rehabilitation. This work presents the recoveriX system, a hardware and software platform that combines a motor imagery (MI)-based brain-computer interface (BCI), functional electrical stimulation (FES), and visual feedback technologies for a complete sensorimotor closed-loop therapy system for poststroke rehabilitation. The proposed system was tested on two chronic stroke patients in a clinical environment...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29146562/multi-method-laboratory-user-evaluation-of-an-actionable-clinical-performance-information-system-implications-for-usability-and-patient-safety
#16
Benjamin Brown, Panos Balatsoukas, Richard Williams, Matthew Sperrin, Iain Buchan
INTRODUCTION: Electronic audit and feedback (e-A&F) systems are used worldwide for care quality improvement. They measure health professionals' performance against clinical guidelines, and some systems suggest improvement actions. However, little is known about optimal interface designs for e-A&F, in particular how to present suggested actions for improvement. We developed a novel theory-informed system for primary care (the Performance Improvement plaN GeneratoR; PINGR) that covers the four principal interface components: clinical performance summaries; patient lists; detailed patient-level information; and suggested actions...
November 13, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/29143946/multi-scale-account-of-the-network-structure-of-macaque-visual-cortex
#17
Maximilian Schmidt, Rembrandt Bakker, Claus C Hilgetag, Markus Diesmann, Sacha J van Albada
Cortical network structure has been extensively characterized at the level of local circuits and in terms of long-range connectivity, but seldom in a manner that integrates both of these scales. Furthermore, while the connectivity of cortex is known to be related to its architecture, this knowledge has not been used to derive a comprehensive cortical connectivity map. In this study, we integrate data on cortical architecture and axonal tracing data into a consistent multi-scale framework of the structure of one hemisphere of macaque vision-related cortex...
November 16, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/29131516/performance-in-a-collaborative-search-task-the-role-of-feedback-and-alignment
#18
Moreno I Coco, Rick Dale, Frank Keller
When people communicate, they coordinate a wide range of linguistic and non-linguistic behaviors. This process of coordination is called alignment, and it is assumed to be fundamental to successful communication. In this paper, we question this assumption and investigate whether disalignment is a more successful strategy in some cases. More specifically, we hypothesize that alignment correlates with task success only when communication is interactive. We present results from a spot-the-difference task in which dyads of interlocutors have to decide whether they are viewing the same scene or not...
November 13, 2017: Topics in Cognitive Science
https://www.readbyqxmd.com/read/29130453/a-binary-motor-imagery-tasks-based-brain-computer-interface-for-two-dimensional-movement-control
#19
Bin Xia, Lei Cao, Oladazimi Maysam, Jie Li, Hong Xie, Caixia Su, Niels Birbaumer
OBJECTIVE: Two-dimensional movement control is a popular issue in brain-computer interface (BCI) research and has many applications in the real world. In this paper, we introduce a combined control strategy to a binary class-based BCI system that allows the user to move a cursor in a two-dimensional (2D) plane. Users focus on a single moving vector to control 2D movement instead of controlling vertical and horizontal movement separately. APPROACH: Five participants took part in a fixed-target experiment and random-target experiment to verify the effectiveness of the combination control strategy under the fixed and random routine conditions...
November 13, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29128736/optimal-practice-conditions-enhance-the-benefits-of-gradually-increasing-error-opportunities-on-retention-of-a-stepping-sequence-task
#20
Danielle Levac, Kate Driscoll, Jessica Galvez, Kathleen Mercado, Lindsey O'Neil
INTRODUCTION: Physical therapists should implement practice conditions that promote motor skill learning after neurological injury. Errorful and errorless practice conditions are effective for different populations and tasks. Errorful learning provides opportunities for learners to make task-relevant choices. Enhancing learner autonomy through choice opportunities is a key component of the Optimizing Performance through Intrinsic Motivation and Attention for Learning (OPTIMAL) theory of motor learning...
November 9, 2017: Human Movement Science
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