keyword
MENU ▼
Read by QxMD icon Read
search

Visual attention

keyword
https://www.readbyqxmd.com/read/28230396/detecting-target-changes-in-multiple-object-tracking-with-peripheral-vision-more-pronounced-eccentricity-effects-for-changes-in-form-than-in-motion
#1
Christian Vater, Ralf Kredel, Ernst-Joachim Hossner
In the current study, dual-task performance is examined with multiple-object tracking as a primary task and target-change detection as a secondary task. The to-be-detected target changes in conditions of either change type (form vs. motion; Experiment 1) or change salience (stop vs. slowdown; Experiment 2), with changes occurring at either near (5°-10°) or far (15°-20°) eccentricities (Experiments 1 and 2). The aim of the study was to test whether changes can be detected solely with peripheral vision. By controlling for saccades and computing gaze distances, we could show that participants used peripheral vision to monitor the targets and, additionally, to perceive changes at both near and far eccentricities...
February 23, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28230395/contextual-cueing-improves-attentional-guidance-even-when-guidance-is-supposedly-optimal
#2
Anthony M Harris, Roger W Remington
Visual search through previously encountered contexts typically produces reduced reaction times compared with search through novel contexts. This contextual cueing benefit is well established, but there is debate regarding its underlying mechanisms. Eye-tracking studies have consistently shown reduced number of fixations with repetition, supporting improvements in attentional guidance as the source of contextual cueing. However, contextual cueing benefits have been shown in conditions in which attentional guidance should already be optimal-namely, when attention is captured to the target location by an abrupt onset, or under pop-out conditions...
February 23, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28229502/shared-musical-knowledge-in-11-month-old-infants
#3
Samuel A Mehr, Elizabeth S Spelke
Five-month-old infants selectively attend to novel people who sing melodies originally learned from a parent, but not melodies learned from a musical toy or from an unfamiliar singing adult, suggesting that music conveys social information to infant listeners. Here, we test this interpretation further in older infants with a more direct measure of social preferences. We randomly assigned 64 11-month-old infants to 1-2 weeks' exposure to one of two novel play songs that a parent either sang or produced by activating a recording inside a toy...
February 22, 2017: Developmental Science
https://www.readbyqxmd.com/read/28229169/electrophysiological-evidence-for-enhanced-attentional-deployment-in-spatial-learners
#4
Brandi Lee Drisdelle, Kyoko Konishi, Moussa Diarra, Veronique D Bohbot, Pierre Jolicoeur, Greg L West
Visual spatial attention is important during navigation processes that rely on a cognitive map, because spatial relationships between environmental landmarks need to be selected, encoded, and learned. People who navigate using this strategy are spatial learners, and this process relies on the hippocampus. Conversely, response learners memorize a series of actions to navigate, which relies on the caudate nucleus. Response learning, which is more efficient, is thought to involve less demanding cognitive operations, and is related to reduced grey matter in the hippocampus...
February 22, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28228739/touchscreen-tablets-coordinating-action-and-perception-for-mathematical-cognition
#5
Carolien A C G Duijzer, Shakila Shayan, Arthur Bakker, Marieke F Van der Schaaf, Dor Abrahamson
Proportional reasoning is important and yet difficult for many students, who often use additive strategies, where multiplicative strategies are better suited. In our research we explore the potential of an interactive touchscreen tablet application to promote proportional reasoning by creating conditions that steer students toward multiplicative strategies. The design of this application (Mathematical Imagery Trainer) was inspired by arguments from embodied-cognition theory that mathematical understanding is grounded in sensorimotor schemes...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28227771/tracking-intrinsic-connectivity-brain-network-features-during-successive-pseudo-resting-states-and-interoceptive-task-fmri
#6
Behnaz Jarrahi, Dante Mantini, Behnaz Jarrahi, Dante Mantini, Behnaz Jarrahi, Dante Mantini
Advanced multivariate analyses of functional magnetic resonance imaging (fMRI) data based on blood oxygen level-dependent (BOLD) contras have revealed that the human brain organizes its activities into multiple intrinsic connectivity networks (ICNs). Several fMRI studies have evaluated the modulations of these networks during different cognitive or emotional tasks using blind source separation techniques particularly the independent component analysis (ICA). In this exploratory study, we applied ICA methodology to examine ICN modulations under different interoceptive conditions...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227767/regional-brain-activity-that-determines-successful-and-unsuccessful-working-memory-formation
#7
Shohei Teramoto, Tsubasa Inaoka, Yumie Ono, Shohei Teramoto, Tsubasa Inaoka, Yumie Ono, Shohei Teramoto, Tsubasa Inaoka, Yumie Ono
Using EEG source reconstruction with Multiple Sparse Priors (MSP), we investigated the regional brain activity that determines successful memory encoding in two participant groups of high and low accuracy rates. Eighteen healthy young adults performed a sequential fashion of visual Sternberg memory task. The 32-channel EEG was continuously measured during participants performed two 70 trials of memory task. The regional brain activity corresponding to the oscillatory EEG activity in the alpha band (8-13 Hz) during encoding period was analyzed by MSP implemented in SPM8...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227532/assessing-the-role-of-preknowledge-in-force-compensation-during-a-tracking-task
#8
Dimitrios Menychtas, Tyler Sullins, Benjamin Rigsby, Stephanie Carey, Kyle B Reed, Dimitrios Menychtas, Tyler Sullins, Benjamin Rigsby, Stephanie Carey, Kyle B Reed, Dimitrios Menychtas, Benjamin Rigsby, Kyle B Reed, Stephanie Carey, Tyler Sullins
Considerable research has been done looking at the asymmetries between the dominant and nondominant arms. However, one area that has received less attention is how information about a perturbation affects these upper limb asymmetries. Our study sought to determine whether foreknowledge of a perturbation can affect the compensation from each arm. In addition, we examined the differences in compensation for perturbations parallel with the line of action and perpendicular to it. Results showed that the nondominant arm was largely unaffected by the visual condition...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227402/simplified-eeg-inverse-solution-for-bci-real-time-implementation
#9
L Duque-Munoz, F Vargas, J D Lopez, L Duque-Munoz, F Vargas, J D Lopez, F Vargas, L Duque-Munoz, J D Lopez
EEG brain imaging has become a promising approach in Brain-computer interface applications. However, accurate reconstruction of active regions and computational burden are still open issues. In this paper, we propose to use a simplified forward model that includes the reduction of the cortical dipoles based on Brodmann areas together with state-of-the-art EEG brain imaging techniques. With this approach the well known Beamformers and Greedy Search inverse solutions become feasible for real-time implementation, while guaranteeing lower localization error than previous approaches used in BCI...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227351/video-based-depression-detection-using-local-curvelet-binary-patterns-in-pairwise-orthogonal-planes
#10
Anastasia Pampouchidou, Kostas Marias, Manolis Tsiknakis, Panagiotis Simos, Fan Yang, Guillaume Lemaitre, Fabrice Meriaudeau, Anastasia Pampouchidou, Kostas Marias, Manolis Tsiknakis, Panagiotis Simos, Fan Yang, Guillaume Lemaitre, Fabrice Meriaudeau, Fabrice Meriaudeau, Guillaume Lemaitre, Manolis Tsiknakis, Kostas Marias, Anastasia Pampouchidou, Panagiotis Simos, Fan Yang
Depression is an increasingly prevalent mood disorder. This is the reason why the field of computer-based depression assessment has been gaining the attention of the research community during the past couple of years. The present work proposes two algorithms for depression detection, one Frame-based and the second Video-based, both employing Curvelet transform and Local Binary Patterns. The main advantage of these methods is that they have significantly lower computational requirements, as the extracted features are of very low dimensionality...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226788/decoding-of-responses-to-mixed-frequency-and-phase-coded-visual-stimuli-using-multiset-canonical-correlation-analysis
#11
Kaori Suefusa, Toshihisa Tanaka, Kaori Suefusa, Toshihisa Tanaka, Toshihisa Tanaka, Kaori Suefusa
Brain-computer interfacing (BCI) based on steady-state visual evoked potentials (SSVEPs) is one of the most practical BCIs because of its high recognition accuracies and little training of a user. Mixed frequency and phase coding which can implement a number of commands and achieve a high information transfer rate (ITR) has recently been gaining much attention. In order to implement mixed-coded SSVEP-BCI as a reliable interface, it is important to detect commands fast and accurately. This paper presents a novel method to recognize mixed-coded SSVEPs which achieves high performance...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226763/detection-of-diabetic-foot-hyperthermia-by-using-a-regionalization-method-based-on-the-plantar-angiosomes-on-infrared-images
#12
Y Liu, A Polo, M Zequera, R Harba, R Canals, L Vilcahuaman, Y Bello, Y Liu, A Polo, M Zequera, R Harba, R Canals, L Vilcahuaman, Y Bello, A Polo, M Zequera, Y Liu, Y Bello, R Canals, L Vilcahuaman, R Harba
Prevention of serious diabetic foot complication like ulceration or infection is an important issue. As the development of thermal graphic technologies, foot temperature-guided avoidance therapy has been recommended. Doctors from Hospital National Dos de Mayo are studying on the risk of the diabetic foot passing from Grade 0 to Grade 1 in the Wagner Scale. This risk to develop ulcers is related to the temperature difference of corresponding area between left and right foot. Generally speaking, the diabetic foot with greater mean temperature difference has more potential to develop ulcers; especially, area whose temperature difference of more than 2...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225044/comparison-of-dp3-signals-evoked-by-comfortable-3d-images-and-2d-images-an-event-related-potential-study-using-an-oddball-task
#13
Peng Ye, Xiang Wu, Dingguo Gao, Haowen Liang, Jiahui Wang, Shaozhi Deng, Ningsheng Xu, Juncong She, Jun Chen
The horizontal binocular disparity is a critical factor for the visual fatigue induced by watching stereoscopic TVs. Stereoscopic images that possess the disparity within the 'comfort zones' and remain still in the depth direction are considered comfortable to the viewers as 2D images. However, the difference in brain activities between processing such comfortable stereoscopic images and 2D images is still less studied. The DP3 (differential P3) signal refers to an event-related potential (ERP) component indicating attentional processes, which is typically evoked by odd target stimuli among standard stimuli in an oddball task...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224970/an-improved-p300-pattern-in-bci-to-catch-user-s-attention
#14
Jing Jin, Hanhan Zhang, Daly Ian, Xingyu Wang, Andrzej Cichocki
OBJECTIVE: Brain-computer interfaces (BCIs) can help patients who have lost control over most muscles but are still conscious and able to communicate or interact with the environment. One of the most popular types of BCI is the P300-based BCI. With this BCI, users are asked to count the number of appearances of target stimuli in an experiment. To date, the majority of visual P300-based BCI systems developed have used the same character or picture as the target for every stimulus presentation, which can bore users...
February 22, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28222339/everyday-memory-impairment-in-patients-with-temporal-lobe-epilepsy-caused-by-hippocampal-sclerosis
#15
Patrícia Rzezak, Ellen Marise Lima, Ana Carolina Gargaro, Erica Coimbra, Silvia de Vincentiis, Tonicarlo Rodrigues Velasco, João Pereira Leite, Geraldo F Busatto, Kette D Valente
OBJECTIVE: Patients with temporal lobe epilepsy caused by hippocampal sclerosis (TLE-HS) have episodic memory impairment. Memory has rarely been evaluated using an ecologic measure, even though performance on these tests is more related to patients' memory complaints. We aimed to measure everyday memory of patients with TLE-HS to age- and gender-matched controls. METHODS: We evaluated 31 patients with TLE-HS and 34 healthy controls, without epilepsy and psychiatric disorders, using the Rivermead Behavioral Memory Test (RBMT), Visual Reproduction (WMS-III) and Logical Memory (WMS-III)...
February 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28222312/visual-attention-in-violent-offenders-susceptibility-to-distraction
#16
Jantine Slotboom, Sylco S Hoppenbrouwers, Yvonne H A Bouman, Willem In 't Hout, Carmen Sergiou, Stefan van der Stigchel, Jan Theeuwes
Impairments in executive functioning give rise to reduced control of behavior and impulses, and are therefore a risk factor for violence and criminal behavior. However, the contribution of specific underlying processes remains unclear. A crucial element of executive functioning, and essential for cognitive control and goal-directed behavior, is visual attention. To further elucidate the importance of attentional functioning in the general offender population, we employed an attentional capture task to measure visual attention...
February 16, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28220543/the-beneficial-attributes-of-visual-art-making-in-cancer-care-an%C3%A2-integrative-review
#17
G Ennis, M Kirshbaum, N Waheed
We seek to understand what is known about the use of visual art-making for people who have a cancer diagnosis, and to explore how art-making may help address fatigue in the cancer care context. Art-making involves creating art or craft alone or in a group and does not require an art-therapist as the emphasis is on creativity rather than an overt therapeutic intention. An integrative review was undertaken of qualitative, quantitative and mixed-method studies on art-making for people who have cancer, at any stage of treatment or recovery...
February 21, 2017: European Journal of Cancer Care
https://www.readbyqxmd.com/read/28220500/neuroplus-biofeedback-improves-attention-resilience-and-injury-prevention-in-elite-soccer-players
#18
Aiace Rusciano, Giuliano Corradini, Ivilin Stoianov
Performance and injury prevention in elite soccer players are typically investigated from physical-tactical, biomechanical, and metabolic perspectives. However, executive functions, visuospatial abilities, and psychophysiological adaptability or resilience are also fundamental for efficiency and well-being in sports. Based on previous research associating autonomic flexibility with prefrontal cortical control, we designed a novel integrated autonomic biofeedback training method called Neuroplus to improve resilience, visual attention, and injury prevention...
February 21, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28220070/neural-correlates-of-mirror-visual-feedback-induced-performance-improvements-a-resting-state-fmri-study
#19
Viola Rjosk, Jöran Lepsien, Elisabeth Kaminski, Maike Hoff, Bernhard Sehm, Christopher J Steele, Arno Villringer, Patrick Ragert
Mirror visual feedback (MVF) is a promising approach to enhance motor performance without training in healthy adults as well as in patients with focal brain lesions. There is preliminary evidence that a functional modulation within and between primary motor cortices as assessed with transcranial magnetic stimulation (TMS) might be one candidate mechanism mediating the observed behavioral effects. Recently, studies using task-based functional magnetic resonance imaging (fMRI) have indicated that MVF-induced functional changes might not be restricted to the primary motor cortex (M1) but also include higher order regions responsible for perceptual-motor coordination and visual attention...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28219774/dynamic-causal-modelling-revisited
#20
K J Friston, Katrin H Preller, Chris Mathys, Hayriye Cagnan, Jakob Heinzle, Adeel Razi, Peter Zeidman
This paper revisits the dynamic causal modelling of fMRI timeseries by replacing the usual (Taylor) approximation to neuronal dynamics with a neural mass model of the canonical microcircuit. This provides a generative or dynamic causal model of laminar specific responses that can generate haemodynamic and electrophysiological measurements. In principle, this allows the fusion of haemodynamic and (event related or induced) electrophysiological responses. Furthermore, it enables Bayesian model comparison of competing hypotheses about physiologically plausible synaptic effects; for example, does attentional modulation act on superficial or deep pyramidal cells - or both? In this technical note, we describe the resulting dynamic causal model and provide an illustrative application to the attention to visual motion dataset used in previous papers...
February 17, 2017: NeuroImage
keyword
keyword
54772
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"