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https://www.readbyqxmd.com/read/28092778/electrocortical-consequences-of-image-processing-the-influence-of-working-memory-load-and-worry
#1
Evan J White, DeMond M Grant
Research suggests that worry precludes emotional processing as well as biases attentional processes. Although there is burgeoning evidence for the relationship between executive functioning and worry, more research in this area is needed. A recent theory suggests one mechanism for the negative effects of worry on neural indicators of attention may be working memory load, however few studies have examined this directly. The goal of the current study was to document the influence of both visual and verbal working memory load and worry on attention allocation during processing of emotional images in a cued image paradigm...
January 10, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28091395/a-novel-onset-detection-technique-for-brain-computer-interfaces-using-sound-production-related-cognitive-tasks-in-simulated-online-system
#2
YoungJae Song, Francisco Sepulveda
OBJECTIVE: Self-paced EEG-based BCIs (SP-BCIs) have traditionally been avoided due to two sources of uncertainty: (1) precisely when an intentional command is sent by the brain, i.e., the command onset detection problem, and (2) how different the intentional command is when compared to non-specific (or idle) states. Performance evaluation is also a problem and there are no suitable standard metrics available. In this paper we attempted to tackle these issues. APPROACH: Self-paced covert sound-production cognitive tasks (i...
February 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28090600/learning-based-3t-brain-mri-segmentation-with-guidance-from-7t-mri-labeling
#3
Renping Yu, Minghui Deng, Pew-Thian Yap, Zhihui Wei, Li Wang, Dinggang Shen
Brain magnetic resonance image segmentation is one of the most important tasks in medical image analysis and has considerable importance to the effective use of medical imagery in clinical and surgical setting. In particular, the tissue segmentation of white matter (WM), gray matter (GM), and cerebrospinal fluid (CSF) is crucial for brain measurement and disease diagnosis. A variety of studies have shown that the learning-based techniques are efficient and effective in brain tissue segmentation. However, the learning-based segmentation methods depend largely on the availability of good training labels...
October 2016: Machine Learning in Medical Imaging
https://www.readbyqxmd.com/read/28088225/using-low-cost-drones-to-map-malaria-vector-habitats
#4
Andy Hardy, Makame Makame, Dónall Cross, Silas Majambere, Mwinyi Msellem
BACKGROUND: There is a growing awareness that if we are to achieve the ambitious goal of malaria elimination, we must compliment indoor-based vector control interventions (such as bednets and indoor spraying) with outdoor-based interventions such as larval source management (LSM). The effectiveness of LSM is limited by our capacity to identify and map mosquito aquatic habitats. This study provides a proof of concept for the use of a low-cost (< $1000) drone (DJI Phantom) for mapping water bodies in seven sites across Zanzibar including natural water bodies, irrigated and non-irrigated rice paddies, peri-urban and urban locations...
January 14, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28077513/cognitive-control-structures-in-the-imitation-learning-of-spatial-sequences-and-rhythms-an-fmri-study
#5
Katrin Sakreida, Satomi Higuchi, Cinzia Di Dio, Michael Ziessler, Martine Turgeon, Neil Roberts, Stefan Vogt
Imitation learning involves the acquisition of novel motor patterns based on action observation (AO). We used event-related functional magnetic resonance imaging to study the imitation learning of spatial sequences and rhythms during AO, motor imagery (MI), and imitative execution in nonmusicians and musicians. While both tasks engaged the fronto-parietal mirror circuit, the spatial sequence task recruited posterior parietal and dorsal premotor regions more strongly. The rhythm task involved an additional network for auditory working memory...
January 10, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28075381/the-n-3-polyunsaturated-fatty-acids-supplementation-improved-the-cognitive-function-in-the-chinese-elderly-with-mild-cognitive-impairment-a-double-blind-randomized-controlled-trial
#6
Yacong Bo, Xueyuan Zhang, Youli Wang, Jie You, Han Cui, Yiwei Zhu, Wei Pang, Wei Liu, Yugang Jiang, Quanjun Lu
OBJECTIVE: Intake of n-3 polyunsaturated fatty acids (n-3 PUFAs) may protect against mild cognitive impairment (MCI). However, there is still a lack of the n-3 PUFAs intervention in the elderly with MCI in China. The aim of the present study was to investigate the effect of n-3 PUFA supplementation on cognitive function in the Chinese elderly with MCI. METHODS: Eighty six MCI individuals aged 60 years or older were randomly assigned to receive either n-3 PUFAs (480 mg DHA and 720 mg EPA per day, n = 44) or placebo (olive oil, n = 42) capsules...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28075367/high-performance-anti-retransmission-deception-jamming-utilizing-range-direction-multiple-input-and-multiple-output-mimo-synthetic-aperture-radar-sar
#7
Ruijia Wang, Jie Chen, Xing Wang, Bing Sun
Retransmission deception jamming seriously degrades the Synthetic Aperture Radar (SAR) detection efficiency and can mislead SAR image interpretation by forming false targets. In order to suppress retransmission deception jamming, this paper proposes a novel multiple input and multiple output (MIMO) SAR structure range direction MIMO SAR, whose multiple channel antennas are vertical to the azimuth. First, based on the multiple channels of range direction MIMO SAR, the orthogonal frequency division multiplexing (OFDM) linear frequency modulation (LFM) signal was adopted as the transmission signal of each channel, which is defined as a sub-band signal...
January 9, 2017: Sensors
https://www.readbyqxmd.com/read/28074038/iconic-photographs-and-the-ebb-and-flow-of-empathic-response-to-humanitarian-disasters
#8
Paul Slovic, Daniel Västfjäll, Arvid Erlandsson, Robin Gregory
The power of visual imagery is well known, enshrined in such familiar sayings as "seeing is believing" and "a picture is worth a thousand words." Iconic photos stir our emotions and transform our perspectives about life and the world in which we live. On September 2, 2015, photographs of a young Syrian child, Aylan Kurdi, lying face-down on a Turkish beach, filled the front pages of newspapers worldwide. These images brought much-needed attention to the Syrian war that had resulted in hundreds of thousands of deaths and created millions of refugees...
January 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28073940/vividness-of-visual-imagery-depends-on-the-neural-overlap-with-perception-in-visual-areas
#9
Nadine Dijkstra, Sander Bosch, Marcel A J van Gerven
: Research into the neural correlates of individual differences in imagery vividness point to an important role of the early visual cortex. However, there is also great fluctuation of vividness within individuals, such that only looking at differences between people necessarily obscures the picture. In this study we show that variation in moment-to-moment experienced vividness of visual imagery, within human subjects, depends on the activity of a large network of brain areas, including frontal, parietal and visual areas...
January 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28073500/initial-skill-assessment-of-the-california-harmful-algae-risk-mapping-c-harm-system
#10
Clarissa R Anderson, Raphael M Kudela, Mati Kahru, Yi Chao, Leslie K Rosenfeld, Frederick L Bahr, David M Anderson, Tenaya A Norris
Toxic algal events are an annual burden on aquaculture and coastal ecosystems of California. The threat of domoic acid (DA) toxicity to human and wildlife health is the dominant harmful algal bloom (HAB) concern for the region, leading to a strong focus on prediction and mitigation of these blooms and their toxic effects. This paper describes the initial development of the California Harmful Algae Risk Mapping (C-HARM) system that predicts the spatial likelihood of blooms and dangerous levels of DA using a unique blend of numerical models, ecological forecast models of the target group, Pseudo-nitzschia, and satellite ocean color imagery...
November 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073474/challenges-for-mapping-cyanotoxin-patterns-from-remote-sensing-of-cyanobacteria
#11
REVIEW
Richard P Stumpf, Timothy W Davis, Timothy T Wynne, Jennifer L Graham, Keith A Loftin, Thomas H Johengen, Duane Gossiaux, Danna Palladino, Ashley Burtner
Using satellite imagery to quantify the spatial patterns of cyanobacterial toxins has several challenges. These challenges include the need for surrogate pigments - since cyanotoxins cannot be directly detected by remote sensing, the variability in the relationship between the pigments and cyanotoxins - especially microcystins (MC), and the lack of standardization of the various measurement methods. A dual-model strategy can provide an approach to address these challenges. One model uses either chlorophyll-a (Chl-a) or phycocyanin (PC) collected in situ as a surrogate to estimate the MC concentration...
April 2016: Harmful Algae
https://www.readbyqxmd.com/read/28072803/neural-correlates-of-maladaptive-pain-behavior-in-chronic-neck-pain-a-single-case-control-fmri-study
#12
Konstantin Beinert, Audrey Mouthon, Martin Keller, Michael Mouthon, Jean-Marie Annoni, Wolfgang Taube
Chronic neck pain patients display functional impairments like decreased range of motion, decreased strength, and reduced sensorimotor function. In patients without structural damage, the reason for the persistence of pain is not well understood. Therefore, it is assumed that in chronic pain states, memory processes play an important role. We have now detected and tested a patient that might help us to better understand the neural correlates of maladaptive pain expectation/memory. This patient displays chronic neck pain and restricted unilateral motion of the cervical spine to the left...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28072460/psychosocial-interventions-for-recurrent-abdominal-pain-in-childhood
#13
REVIEW
Rebecca A Abbott, Alice E Martin, Tamsin V Newlove-Delgado, Alison Bethel, Joanna Thompson-Coon, Rebecca Whear, Stuart Logan
BACKGROUND: This review supersedes the original Cochrane review first published in 2008 (Huertas-Ceballos 2008).Between 4% and 25% of school-aged children complain of recurrent abdominal pain (RAP) severe enough to interfere with their daily activities. No organic cause for this pain can be found on physical examination or investigation for the majority of such children. Although many children are managed by reassurance and simple measures, a large range of psychosocial interventions involving cognitive and behavioural components have been recommended...
January 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28072449/a-survival-guide-to-landsat-preprocessing
#14
Nicholas E Young, Ryan S Anderson, Stephen M Chignell, Anthony G Vorster, Rick Lawrence, Paul H Evangelista
Landsat data are increasingly used for ecological monitoring and research. These data often require preprocessing prior to analysis to account for sensor, solar, atmospheric, and topographic effects. However, ecologists using these data are faced with a literature containing inconsistent terminology, outdated methods, and a vast number of approaches with contradictory recommendations. These issues can, at best, make determining the correct preprocessing workflow a difficult and time-consuming task and, at worst, lead to erroneous results...
January 10, 2017: Ecology
https://www.readbyqxmd.com/read/28071707/the-content-of-imagined-sounds-changes-visual-motion-perception-in-the-cross-bounce-illusion
#15
Christopher C Berger, H Henrik Ehrsson
Can what we imagine hearing change what we see? Whether imagined sensory stimuli are integrated with external sensory stimuli to shape our perception of the world has only recently begun to come under scrutiny. Here, we made use of the cross-bounce illusion in which an auditory stimulus presented at the moment two passing objects meet promotes the perception that the objects bounce off rather than cross by one another to examine whether the content of imagined sound changes visual motion perception in a manner that is consistent with multisensory integration...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28069156/effectiveness-of-a-relaxation-intervention-progressive-muscle-relaxation-and-guided-imagery-techniques-to-reduce-anxiety-and-improve-mood-of-parents-of-hospitalized-children-with-malignancies-a-randomized-controlled-trial-in-republic-of-cyprus-and-greece
#16
Theologia Tsitsi, Andreas Charalambous, Evridiki Papastavrou, Vasilios Raftopoulos
PURPOSE: To explore the effect of Progressive Muscle Relaxation (PMR) and Guided Imagery (GI),in reducing anxiety levels among parents of children diagnosed with any type of malignancy receiving active treatment at a Paediatric Oncology Unit in Republic of Cyprus and in Greece. METHOD: A randomized non-blinded control trial was conducted between April 2012 to October 2013, at two public paediatric hospitals. Fifty four eligible parents of children hospitalized with a malignancy were randomly assigned to the intervention (PMR and GI) (n = 29) and a control group (n = 25)...
February 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28067770/assessment-of-pansharpening-methods-applied-to-worldview-2-imagery-fusion
#17
Hui Li, Linhai Jing, Yunwei Tang
Since WorldView-2 (WV-2) images are widely used in various fields, there is a high demand for the use of high-quality pansharpened WV-2 images for different application purposes. With respect to the novelty of the WV-2 multispectral (MS) and panchromatic (PAN) bands, the performances of eight state-of-art pan-sharpening methods for WV-2 imagery including six datasets from three WV-2 scenes were assessed in this study using both quality indices and information indices, along with visual inspection. The normalized difference vegetation index, normalized difference water index, and morphological building index, which are widely used in applications related to land cover classification, the extraction of vegetation areas, buildings, and water bodies, were employed in this work to evaluate the performance of different pansharpening methods in terms of information presentation ability...
January 5, 2017: Sensors
https://www.readbyqxmd.com/read/28063887/imagerie-par-r%C3%A3-sonance-magn%C3%A3-tique-de-diffusion-cancer-de-l-endom%C3%A3-tre
#18
Kenichiro Sato, Yasuyoshi Fukushima
No abstract text is available yet for this article.
January 4, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28063574/interventions-et-techniques-de-diagnostic-pr%C3%A3-natal-visant-l-obtention-d-un-pr%C3%A3-l%C3%A3-vement-f%C3%A5-tal-%C3%A3-des-fins-diagnostiques-risques-et-avantages-pour-la-m%C3%A3-re-et-le-f%C3%A5-tus
#19
R Douglas Wilson, Alain Gagnon, François Audibert, Carla Campagnolo, June Carroll
OBJECTIF: Offrir aux fournisseurs de soins de maternité et à leurs patientes des lignes directrices factuelles contemporaines en ce qui concerne les services de counseling traitant des risques et des avantages maternels propres à la tenue des interventions diagnostiques prénatales orientées par échographie (et/ou des techniques permettant l'établissement d'un diagnostic génétique) nécessaires dans les cas où il a été établi pendant la période prénatale que la grossesse serait exposée à des risques, ainsi qu'en ce qui concerne la prise de décisions subséquentes quant à la prise en charge de la grossesse (questions abordant des aspects tels que le niveau du fournisseur de soins obstétricaux, la surveillance prénatale, le lieu où devraient se dérouler les soins et l'accouchement, et la décision de poursuivre ou d'interrompre la grossesse)...
December 2016: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28057338/effects-of-local-factors-and-climate-on-permafrost-conditions-and-distribution-in-beiluhe-basin-qinghai-tibet-plateau-china
#20
Guoan Yin, Fujun Niu, Zhanju Lin, Jing Luo, Minghao Liu
Beiluhe basin is underlain by warm and ice-rich permafrost, and covered by vegetation and soils characteristic of the Qinghai-Tibet Plateau. A field monitoring network was established to investigate permafrost conditions and to assess potential impacts of local factors and climate change. This paper describes the spatial variations in permafrost conditions from instrumented boreholes, controlling environmental factors, and recent thermal evolution of permafrost in the basin. The study area was divided into 10 ecotypes using satellite imagery based classification...
January 2, 2017: Science of the Total Environment
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