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https://www.readbyqxmd.com/read/29051688/facilitating-motor-imagery-based-brain-computer-interface-for-stroke-patients-using-passive-movement
#1
Mahnaz Arvaneh, Cuntai Guan, Kai Keng Ang, Tomas E Ward, Karen S G Chua, Christopher Wee Keong Kuah, Gopal Joseph Ephraim Joseph, Kok Soon Phua, Chuanchu Wang
Motor imagery-based brain-computer interface (MI-BCI) has been proposed as a rehabilitation tool to facilitate motor recovery in stroke. However, the calibration of a BCI system is a time-consuming and fatiguing process for stroke patients, which leaves reduced time for actual therapeutic interaction. Studies have shown that passive movement (PM) (i.e., the execution of a movement by an external agency without any voluntary motions) and motor imagery (MI) (i.e., the mental rehearsal of a movement without any activation of the muscles) induce similar EEG patterns over the motor cortex...
2017: Neural Computing & Applications
https://www.readbyqxmd.com/read/29051286/brachycephaly-practices-should-take-care-with-online-imagery
#2
(no author information available yet)
No abstract text is available yet for this article.
October 21, 2017: Veterinary Record
https://www.readbyqxmd.com/read/29050383/early-detection-of-consciousness-in-patients-with-acute-severe-traumatic-brain-injury
#3
Brian L Edlow, Camille Chatelle, Camille A Spencer, Catherine J Chu, Yelena G Bodien, Kathryn L O'Connor, Ronald E Hirschberg, Leigh R Hochberg, Joseph T Giacino, Eric S Rosenthal, Ona Wu
See Schiff (doi:10.1093/awx209) for a scientific commentary on this article. Patients with acute severe traumatic brain injury may recover consciousness before self-expression. Without behavioural evidence of consciousness at the bedside, clinicians may render an inaccurate prognosis, increasing the likelihood of withholding life-sustaining therapies or denying rehabilitative services. Task-based functional magnetic resonance imaging and electroencephalography techniques have revealed covert consciousness in the chronic setting, but these techniques have not been tested in the intensive care unit...
September 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29046111/eeg-classification-with-a-sequential-decision-making-method-in-motor-imagery-bci
#4
Rong Liu, Yongxuan Wang, Geoffrey I Newman, Nitish V Thakor, Sarah Ying
To develop subject-specific classifier to recognize mental states fast and reliably is an important issue in brain-computer interfaces (BCI), particularly in practical real-time applications such as wheelchair or neuroprosthetic control. In this paper, a sequential decision-making strategy is explored in conjunction with an optimal wavelet analysis for EEG classification. The subject-specific wavelet parameters based on a grid-search method were first developed to determine evidence accumulative curve for the sequential classifier...
September 7, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/29044223/modulating-hemispheric-lateralization-by-brain-stimulation-yields-gain-in-mental-and-physical-activity
#5
Catharina Zich, Siobhán Harty, Cornelia Kranczioch, Karen L Mansfield, Francesco Sella, Stefan Debener, Roi Cohen Kadosh
Imagery plays an important role in our life. Motor imagery is the mental simulation of a motor act without overt motor output. Previous studies have documented the effect of motor imagery practice. However, its translational potential for patients as well as for athletes, musicians and other groups, depends largely on the transfer from mental practice to overt physical performance. We used bilateral transcranial direct current stimulation (tDCS) over sensorimotor areas to modulate neural lateralization patterns induced by unilateral mental motor imagery and the performance of a physical motor task...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29042585/compact-morphology-based-poly-metallic-nodule-delineation
#6
Timm Schoening, Daniel O B Jones, Jens Greinert
Poly-metallic nodules are a marine resource considered for deep sea mining. Assessing nodule abundance is of interest for mining companies and to monitor potential environmental impact. Optical seafloor imaging allows quantifying poly-metallic nodule abundance at spatial scales from centimetres to square kilometres. Towed cameras and diving robots acquire high-resolution imagery that allow detecting individual nodules and measure their sizes. Spatial abundance statistics can be computed from these size measurements, providing e...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29041734/active-sparse-aperture-imaging-using-independent-transmitter-modulation-with-improved-incoherent-fourier-ptychographic-algorithm
#7
Zongliang Xie, Haotong Ma, Bo Qi, Ge Ren, Xiaojun He, Li Dong, Yufeng Tan
Optical sparse aperture imaging shows great promise for the next generation of high resolution systems. In this paper, we propose and demonstrate an active sparse aperture imaging approach using independent transmitter modulation to digitally overcome phasing errors, correct aberrations, and further improve resolution. The reported imaging scheme consists of a general sparse aperture system and an active illumination unit, specifically an independent pattern projector. A series of raw images are captured with the projector scanned to illuminate the object...
August 21, 2017: Optics Express
https://www.readbyqxmd.com/read/29041040/water-leaving-contribution-to-polarized-radiation-field-over-ocean
#8
Peng-Wang Zhai, Kirk Knobelspiesse, Amir Ibrahim, Bryan A Franz, Yongxiang Hu, Meng Gao, Robert Frouin
The top-of-atmosphere (TOA) radiation field from a coupled atmosphere-ocean system (CAOS) includes contributions from the atmosphere, surface, and water body. Atmospheric correction of ocean color imagery is to retrieve water-leaving radiance from the TOA measurement, from which ocean bio-optical properties can be obtained. Knowledge of the absolute and relative magnitudes of water-leaving signal in the TOA radiation field is important for designing new atmospheric correction algorithms and developing retrieval algorithms for new ocean biogeochemical parameters...
August 7, 2017: Optics Express
https://www.readbyqxmd.com/read/29039756/creative-arts-therapies-as-temporary-home-for-refugees-insights-from-literature-and-practice
#9
Rebekka Dieterich-Hartwell, Sabine C Koch
One of the frequently overlooked psychosocial problems of refugees is the phenomenon of homesickness. Being forced into exile and unable to return home may cause natural feelings of nostalgia but may also result in emotional, cognitive, behavioral and physical adversities. According to the literature, the creative arts therapies with their attention to preverbal language-music, imagery, dance, role play, and movement-are able to reach individuals through the senses and promote successive integration, which can lead to transformation and therapeutic change...
October 17, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/29039681/complementary-and-alternative-medicine-services-in-the-military-health-system
#10
Patricia M Herman, Melony E Sorbero, Ann C Sims-Columbia
OBJECTIVES: Surveys of military personnel indicate substantial use of complementary and alternative medicine (CAM) that possibly exceeds use in the general U.S. POPULATION: Although military treatment facilities (MTFs) are known to offer CAM, surveys do not indicate where service members receive this care. This study offers a comprehensive system-wide accounting of the types of CAM offered across the military health system (MHS), the conditions for which it is used, and its level of use...
October 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/29037618/immediate-effect-of-mental-practice-with-and-without-mirror-therapy-on-muscle-activation-in-hemiparetic-stroke-patients
#11
Tamise Aguiar Caires, Luciane Fernanda Rodrigues Martinho Fernandes, Lislei Jorge Patrizzi, Rafael de Almeida Oliveira, Luciane Aparecida Pascucci Sande de Souza
Mental practice (MP) consists of the repeated mental rehearsal of a physical skill without movement, called motor imagery (MI). Studies show that MP and MI associated mirror therapy (MPMT) may improve muscle control of the upper limbs in hemiparesis. This study aimed to evaluate muscle activation during active flexion of the wrist (MA), MP, and MPMT in patients with history of stroke and hemiparesis. Individuals diagnosed with stroke showing sequelae of upper limb hemiparesis were enrolled. The flexor carpi ulnaris was analyzed using electromyography during tasks (MA, MP, MPMT) involving wrist flexion...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29036892/adaptive-enhancement-of-x-band-marine-radar-imagery-to-detect-oil-spill-segments
#12
Peng Liu, Ying Li, Jin Xu, Xueyuan Zhu
Oil spills generate a large cost in environmental and economic terms. Their identification plays an important role in oil-spill response. We propose an oil spill detection method with improved adaptive enhancement on X-band marine radar systems. The radar images used in this paper were acquired on 21 July 2010, from the teaching-training ship "YUKUN" of the Dalian Maritime University. According to the shape characteristic of co-channel interference, two convolutional filters are used to detect the location of the interference, followed by a mean filter to erase the interference...
October 14, 2017: Sensors
https://www.readbyqxmd.com/read/29036115/wide-bandwidth-millimeter-resolution-inverse-synthetic-aperture-radar-imaging
#13
Jonathan T Richard, Martin S Heimbeck, L Blake Autin, Henry O Everitt
The combination of wide bandwidth W-band inverse synthetic aperture radar imagery and high-fidelity numerical simulations has been used to identify distinguishing signatures from simple metallic and dielectric targets. Targets are located with millimeter-scale accuracy using super-resolution techniques. Radon transform reconstructions of the returns from rotated targets approached the image quality of the complete data set in a fraction of the time by sampling as few as 10 angles. The limitations of shooting-and-bouncing ray simulations at high frequencies are illustrated through a critical comparison of their predictions with the measured data and the method of moments simulations, indicating the importance of accurately capturing the obfuscating role played by multipath interference in complex targets...
July 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29034288/the-tno-multiband-image-data-collection
#14
Alexander Toet
Despite of the ongoing interest in the fusion of multi-band images for surveillance applications and a steady stream of publications in this area, there is only a very small number of static registered multi-band test images (and a total lack of dynamic image sequences) publicly available for the development and evaluation of image fusion algorithms. To fill this gap, the TNO Multiband Image Collection provides intensified visual (390-700 nm), near-infrared (700-1000 nm), and longwave infrared (8-12 µm) nighttime imagery of different military and surveillance scenarios, showing different objects and targets (e...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29033532/seeing-is-believing-using-video-feedback-in-cognitive-therapy-for-social-anxiety-disorder
#15
Emma Warnock-Parkes, Jennifer Wild, Richard Stott, Nick Grey, Anke Ehlers, David M Clark
Distorted negative self-images and impressions appear to play a key role in maintaining Social Anxiety Disorder (SAD). In previous research, McManus et al. (2009) found that video feedback can help people undergoing cognitive therapy for SAD (CT-SAD) to develop a more realistic impression of how they appear to others, and this was associated with significant improvement in their social anxiety. In this paper we first present new data from 47 patients that confirms the value of video feedback. Ninety-eighty percent of the patients indicated that they came across more favorably than they had predicted after viewing a video of their social interactions...
May 2017: Cognitive and Behavioral Practice
https://www.readbyqxmd.com/read/29033221/on-the-role-of-visual-experience-in-mathematical-development-evidence-from-blind-mathematicians
#16
Marie Amalric, Isabelle Denghien, Stanislas Dehaene
Advanced mathematical reasoning, regardless of domain or difficulty, activates a reproducible set of bilateral brain areas including intraparietal, inferior temporal and dorsal prefrontal cortex. The respective roles of genetics, experience and education in the development of this math-responsive network, however, remain unresolved. Here, we investigate the role of visual experience by studying the exceptional case of three professional mathematicians who were blind from birth (n=1) or became blind during childhood (n=2)...
October 4, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29032698/text-messages-promoting-mental-imagery-increase-self-reported-physical-activity-in-older-adults-a-randomized-controlled-study
#17
Nicolas Robin, Lucette Toussaint, Guillaume R Coudevylle, Shelly Ruart, Olivier Hue, Stéphane Sinnapah
This study tested whether text messages prompting adults over 50 years of age to perform mental imagery would increase Aerobic Physical Activity (APA) duration using a randomized parallel trial design. METHOD: Participants were assigned to an Imagery 1, Imagery 2 or Placebo group. For 4 weeks, each group was exposed to two conditions (morning text message vs. no morning text message). In the morning message condition, the Imagery groups received a text message with the instruction to mentally imagine performing an APA and the Placebo group received a placebo message...
October 14, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/29031830/action-observation-facilitates-motor-cortical-activity-in-patients-with-stroke-and-hemiplegia
#18
Marina Tani, Yumie Ono, Miku Matsubara, Satoko Ohmatsu, Yoshihiro Yukawa, Masashi Kohno, Takanori Tominaga
Motor imagery (MI) is a mental practice that reproduces the visual- and/or kinesthetic-modality brain activations accompanying movement. It is a useful rehabilitation technique as the affected motor cortex can be stimulated in patients with stroke and hemiplegia. However, most patients with stroke have difficulty with MI owing to advanced age and/or higher-cognitive dysfunction, thus impairing their ability to internally simulate the action. We therefore investigated whether action observation (AO), an alternative form of motor stimulation that works via the mirror-neuron system, could facilitate motor cortical activity in such patients...
October 12, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/29031463/changes-in-brain-activity-during-action-observation-and-motor-imagery-their-relationship-with-motor-learning
#19
Nobuaki Mizuguchi, Kazuyuki Kanosue
Many studies have demonstrated that training utilizing action observation and/or motor imagery improves motor performance. These two techniques are widely used in sports and in the rehabilitation of movement-related disorders. Motor imagery has also been used for brain-machine/computer interfaces (BMI/BCI). During both action observation and motor imagery, motor-related regions such as the premotor cortex and inferior parietal lobule are activated. This is common to actual execution and are involved with the underlying mechanisms of motor learning without execution...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29024180/modeling-plant-composition-as-community-continua-in-a-forest-landscape-with-lidar-and-hyperspectral-remote-sensing
#20
C R Hakkenberg, R K Peet, D L Urban, C Song
In light of the need to operationalize the mapping of forest composition at landscape scales, this study uses multi-scale nested vegetation sampling in conjunction with LiDAR-hyperspectral remotely-sensed data from the G-LiHT airborne sensor to map vascular plant compositional turnover in a compositionally- and structurally-complex North Carolina Piedmont forest. Reflecting a shift in emphasis from remotely sensing individual crowns to detecting aggregate optical-structural properties of forest stands, predictive maps reflect the composition of entire vascular plant communities - inclusive of those species smaller than the resolution of the remotely-sensed imagery, intertwined with proximate taxa, or otherwise obscured from optical sensors by dense upper canopies...
October 10, 2017: Ecological Applications: a Publication of the Ecological Society of America
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