keyword
MENU ▼
Read by QxMD icon Read
search

Salience

keyword
https://www.readbyqxmd.com/read/29036107/infrared-and-visible-image-fusion-via-saliency-analysis-and-local-edge-preserving-multi-scale-decomposition
#1
Xiaoye Zhang, Yong Ma, Fan Fan, Ying Zhang, Jun Huang
To retain the details of a visible image with a discernible target area, we propose a multi-scale decomposition image fusion method based on a local edge-preserving (LEP) filter and saliency detection. We first use a LEP filter to decompose the infrared and visible images. Then, a modified saliency detection method is utilized to detect the salient target areas of an infrared image, which determine the base layer's weights of fusion strategy. Finally, each layer is reconstructed to obtain a visually pleasing fused image...
August 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29035072/distinguishing-among-potential-mechanisms-of-singleton-suppression
#2
Nicholas Gaspelin, Steven J Luck
Previous research has revealed that people can suppress salient stimuli that might otherwise capture visual attention. The present study tests between 3 possible mechanisms of visual suppression. According to first-order feature suppression models, items are suppressed on the basis of simple feature values. According to second-order feature suppression models, items are suppressed on the basis of local discontinuities within a given feature dimension. According to global-salience suppression models, items are suppressed on the basis of their dimension-independent salience levels...
October 16, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/29031510/pain-and-consciousness
#3
REVIEW
Luis Garcia-Larrea, Hélène Bastuji
The aversive experience we call "pain" results from the coordinated activation of multiple brain areas, commonly described as a "pain matrix". This is not a fixed arrangement of structures but rather a fluid system composed of several interacting networks: A 'nociceptive matrix' includes regions receiving input from ascending nociceptive systems, and ensures the bodily characteristics of physical pain. A further set of structures receiving secondary input supports the 'salience' attributes of noxious stimuli, triggers top-down cognitive controls, and -most importantly- ensures the passage from pre-conscious nociception to conscious pain...
October 11, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29030568/cognitive-appraisal-of-environmental-stimuli-induces-emotion-like-states-in-fish
#4
M Cerqueira, S Millot, M F Castanheira, A S Félix, T Silva, G A Oliveira, C C Oliveira, C I M Martins, R F Oliveira
The occurrence of emotions in non-human animals has been the focus of debate over the years. Recently, an interest in expanding this debate to non-tetrapod vertebrates and to invertebrates has emerged. Within vertebrates, the study of emotion in teleosts is particularly interesting since they represent a divergent evolutionary radiation from that of tetrapods, and thus they provide an insight into the evolution of the biological mechanisms of emotion. We report that Sea Bream exposed to stimuli that vary according to valence (positive, negative) and salience (predictable, unpredictable) exhibit different behavioural, physiological and neuromolecular states...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29030248/explicit-wanting-and-liking-for-palatable-snacks-are-differentially-affected-by-change-in-physiological-state-and-differentially-related-to-salivation-and-hunger
#5
Richard J Stevenson, Heather M Francis, Tuki Attuquayefio, Candice Ockert
Incentive salience theory (IST) suggests that 'wanting' and liking are dissociable processes. We argue that explicit measures of wanting in humans can reflect the impact of implicit 'wanting' as envisaged by IST, suggesting that dissociations should also be evident for explicit judgments of wanting and liking. To test this, participants were asked to make ratings of these variables for 8 palatable snack foods - and in a related test salivation rate was also assessed. Participants viewed and sniffed each snack food and rated wanting, and then sampled it and rated liking and whether they wanted more of it...
October 10, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29029883/brain-sexual-differentiation-and-effects-of-cross-sex-hormone-therapy-in-transpeople-a-resting-state-functional-magnetic-resonance-study
#6
Nienke M Nota, Sarah M Burke, Martin den Heijer, Remi S Soleman, Cornelis B Lambalk, Peggy T Cohen-Kettenis, Dick J Veltman, Baudewijntje P Kreukels
OBJECTIVES: It is hypothesized that transpeople show sex-atypical differentiation of the brain. Various structural neuroimaging studies provide support for this notion, but little is known about the sexual differentiation of functional resting-state networks in transpeople. In this study we therefore aimed to determine whether brain functional connectivity (FC) patterns in transpeople are sex-typical or sex-atypical, before and after the start of cross-sex hormone therapy (CHT). METHODS: We acquired resting-state functional magnetic resonance data in 36 transpeople (22 with female sex assigned at birth), first during gonadal suppression, and again four months after start of CHT, and in 37 cisgender people (20 females), both sessions without any hormonal intervention...
October 10, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/29029313/subjective-objective-sleep-discrepancy-is-associated-with-alterations-in-regional-glucose-metabolism-in-patients-with-insomnia-and-good-sleeper-controls
#7
Daniel B Kay, Helmet T Karim, Adriane M Soehner, Brant P Hasler, Jeffrey A James, Anne Germain, Martica H Hall, Peter L Franzen, Julie C Price, Eric A Nofzinger, Daniel J Buysse
Objectives: Sleep discrepancies are common in primary insomnia (PI), and include reports of longer sleep onset latency (SOL) than measured by polysomnography (PSG), or "negative SOL discrepancy." We hypothesized that negative SOL discrepancy in PI would be associated with higher relative glucose metabolism during non-rapid eye movement (NREM) sleep in brain networks involved in conscious awareness, including the salience, left executive control, and default mode networks. Methods: PI (n=32) and good sleeper controls (GS; n=30) completed [ 18F]fluorodeoxyglucose positron emission tomography (FDG-PET) scans during NREM sleep and relative regional cerebral metabolic rate for glucose (rCMRglc) was measured...
October 3, 2017: Sleep
https://www.readbyqxmd.com/read/29029154/interrogating-resilience-in-health-systems-development
#8
Remco van de Pas, Majdi Ashour, Anuj Kapilashrami, Suzanne Fustukian
The Fourth Global Symposium on Health Systems Research was themed around 'Resilient and responsive health systems for a changing world.' This commentary is the outcome of a panel discussion at the symposium in which the resilience discourse and its use in health systems development was critically interrogated. The 2014-15 Ebola outbreak in West-Africa added momentum for the wider adoption of resilient health systems as a crucial element to prepare for and effectively respond to crisis. The growing salience of resilience in development and health systems debates can be attributed in part to development actors and philanthropies such as the Rockefeller Foundation...
September 23, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/29029071/visual-cortex-limits-pop-out-in-the-superior-colliculus-of-awake-mice
#9
Mehran Ahmadlou, Azadeh Tafreshiha, J Alexander Heimel
We detect objects more readily if they differ from their surroundings in motion, color, or texture. This increased saliency is thought to be related to increased responses in the visual cortex. The superior colliculus is another brain area involved in vision and especially in directing gaze and attention. In this study, we show that differences in texture orientation also increase responses in the superficial layers of the superior colliculus that receive retinal and cortical input. We found that gratings evoke more neural response when surrounded by orthogonal gratings than when surrounded by parallel gratings, particularly in the awake mouse...
September 28, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29028821/load-sensitive-impairment-of-working-memory-for-biological-motion-in-schizophrenia
#10
Hannah Lee, Jejoong Kim
Impaired working memory (WM) is a core cognitive deficit in schizophrenia. Nevertheless, past studies have reported that patients may also benefit from increasing salience of memory stimuli. Such efficient encoding largely depends upon precise perception. Thus an investigation on the relationship between perceptual processing and WM would be worthwhile. Here, we used biological motion (BM), a socially relevant stimulus that schizophrenics have difficulty discriminating from similar meaningless motions, in a delayed-response task...
2017: PloS One
https://www.readbyqxmd.com/read/29028583/influence-of-semantic-consistency-and-perceptual-features-on-visual-attention-during-scene-viewing-in-toddlers
#11
Andrea Helo, Sandrien van Ommen, Sebastian Pannasch, Lucile Danteny-Dordoigne, Pia Rämä
Conceptual representations of everyday scenes are built in interaction with visual environment and these representations guide our visual attention. Perceptual features and object-scene semantic consistency have been found to attract our attention during scene exploration. The present study examined how visual attention in 24-month-old toddlers is attracted by semantic violations and how perceptual features (i. e. saliency, centre distance, clutter and object size) and linguistic properties (i. e. object label frequency and label length) affect gaze distribution...
October 10, 2017: Infant Behavior & Development
https://www.readbyqxmd.com/read/29028198/a-benchmark-dataset-and-saliency-guided-stacked-autoencoders-for-video-based-salient-object-detection
#12
Jia Li, Changqun Xia, Xiaowu Chen
Image-based salient object detection (SOD) has been extensively studied in past decades. However, video-based SOD is much less explored due to the lack of large-scale video datasets within which salient objects are unambiguously defined and annotated. Toward this end, this paper proposes a video-based SOD dataset that consists of 200 videos. In constructing the dataset, we manually annotate all objects and regions over 7,650 uniformly sampled keyframes and collect the eye-tracking data of 23 subjects who free-view all videos...
October 12, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29028192/reversion-correction-and-regularized-random-walk-ranking-for-saliency-detection
#13
Yuchen Yuan, Changyang Li, Jinman Kim, Weidong Cai, David Dagan Feng
In recent saliency detection research, many graph-based algorithms have applied boundary priors as background queries, which may generate completely "reversed" saliency maps if the salient objects are on the image boundaries. Moreover, these algorithms usually depend heavily on pre-processed superpixel segmentation, which may lead to notable degradation in image detail features. In this paper, a novel saliency detection method is proposed to overcome the above issues. First, we propose a saliency reversion correction (RC) process, which locates and removes the boundary-adjacent foreground superpixels, and thereby increases the accuracy and robustness of the boundary prior based saliency estimations...
October 12, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/29024659/posterior-cingulate-neurons-dynamically-signal-decisions-to-disengage-during-foraging
#14
David L Barack, Steve W C Chang, Michael L Platt
Foraging for resources is a fundamental behavior balancing systematic search and strategic disengagement. The foraging behavior of primates is especially complex and requires long-term memory, value comparison, strategic planning, and decision-making. Here we provide evidence from two different foraging tasks that neurons in primate posterior cingulate cortex (PCC) signal decision salience during foraging to motivate disengagement from the current strategy. In our foraging tasks, salience refers to the difference between decision thresholds and the net harvested reward...
October 11, 2017: Neuron
https://www.readbyqxmd.com/read/29024235/topography-and-timing-of-activity-in-right-inferior-frontal-cortex-and-anterior-insula-for-stopping-movement
#15
Eleonora Bartoli, Adam R Aron, Nitin Tandon
Stopping incipient action activates both the right inferior frontal cortex (rIFC) and the anterior insula (rAI). Controversy has arisen as to whether these comprise a unitary cortical cluster-the rIFC/rAI-or whether rIFC is the primary stopping locus. To address this, we recorded directly from these structures while taking advantage of the high spatiotemporal resolution of closely spaced stereo-electro-encephalographic (SEEG) electrodes. We studied 12 patients performing a stop-signal task. On each trial they initiated a motor response (Go) and tried to stop to an occasional stop signal...
October 11, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/29022083/adolescent-cannabinoid-exposure-effects-on-natural-reward-seeking-and-learning-in-rats
#16
H Schoch, M Y Huerta, C M Ruiz, M R Farrell, K M Jung, J J Huang, R R Campbell, D Piomelli, S V Mahler
RATIONALE: Adolescence is characterized by endocannabinoid (ECB)-dependent refinement of neural circuits underlying emotion, learning, and motivation. As a result, adolescent cannabinoid receptor stimulation (ACRS) with phytocannabinoids or synthetic agonists like "Spice" cause robust and persistent changes in both behavior and circuit architecture in rodents, including in reward-related regions like medial prefrontal cortex and nucleus accumbens (NAc). OBJECTIVES AND METHODS: Here, we examine persistent effects of ACRS with the cannabinoid receptor 1/2 specific agonist WIN55-212,2 (WIN; 1...
October 11, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/29018379/word-order-and-voice-influence-the-timing-of-verb-planning-in-german-sentence-production
#17
Sebastian Sauppe
Theories of incremental sentence production make different assumptions about when speakers encode information about described events and when verbs are selected, accordingly. An eye tracking experiment on German testing the predictions from linear and hierarchical incrementality about the timing of event encoding and verb planning is reported. In the experiment, participants described depictions of two-participant events with sentences that differed in voice and word order. Verb-medial active sentences and actives and passives with sentence-final verbs were compared...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29017618/dissociation-between-affective-experience-and-motivated-behaviour-in-schizophrenia-patients-and-their-unaffected-first-degree-relatives-and-schizotypal-individuals
#18
Dong-Jie Xie, Simon S Y Lui, Fu-Lei Geng, Zhuo-Ya Yang, Ying-Min Zou, Ying Li, Hera K H Yeung, Eric F C Cheung, Erin A Heerey, Raymond C K Chan
BACKGROUND: The neuropsychological origins of negative syndrome of schizophrenia remain elusive. Evidence from behavioural studies, which utilised emotion-inducing pictures to elicit motivated behaviour generally reported that that schizophrenia patients experienced similar affective experience as healthy individuals but failed to translate emotional salience to motivated behaviour, a phenomenon called emotion-behaviour decoupling. However, a few studies have examined emotion-behaviour decoupling in non-psychotic high-risk populations, who are relatively unaffected by medication effects...
October 11, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28993741/executive-control-and-striatal-resting-state-network-interact-with-risk-factors-to-influence-treatment-outcomes-in-alcohol-use-disorder
#19
Milky Kohno, Laura E Dennis, Holly McCready, William F Hoffman
Alterations within mesocorticolimbic terminal regions commonly occur with alcohol use disorder (AUD). As pathological drug-seeking behavior may arise as a consequence of alcohol-induced neuroadaptations, it is critical to understand how such changes increase the likelihood of relapse. This report examined resting-state functional connectivity (RSFC) using both a seed-based and model-free approach in individuals in treatment for AUD and how dysregulation of network connectivity contributes to treatment outcomes...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28992533/neural-correlates-of-affective-and-non-affective-cognition-in-obsessive-compulsive-disorder-a-meta-analysis-of-functional-imaging-studies
#20
A Rasgon, W H Lee, E Leibu, A Laird, D Glahn, W Goodman, S Frangou
Obsessive compulsive disorder (OCD) is characterized by intrusive thoughts and repetitive ritualistic behaviors and has been associated with diverse functional brain abnormalities. We sought to synthesize current evidence from functional magnetic resonance imaging (fMRI) studies and examine their alignment to pathogenetic models of OCD. Following systematic review, we identified 54 task-fMRI studies published in the last decade comparing adults with OCD (n=1186) to healthy adults (n=1159) using tasks of affective and non-affective cognition...
September 1, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
keyword
keyword
9067
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"