Results 11 to 20 of about 5,920,185 (311)
The spatial extent of focused attention modulates attentional disengagement
AbstractAttention can be flexibly changed to optimize visual processing: it can be oriented, resized, or even divided. Although much is known about these processes individually, much less is known about how they interact with one another. In the present study we examined how the spatial extent of the attentional focus modulates the efficiency of the ...
Lisa N. Jefferies +2 more
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Visual Navigation with Spatial Attention [PDF]
This work focuses on object goal visual navigation, aiming at finding the location of an object from a given class, where in each step the agent is provided with an egocentric RGB image of the scene. We propose to learn the agent's policy using a reinforcement learning algorithm.
Bar Mayo, Tamir Hazan, Ayellet Tal
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The Influence of Focused and Sustained Spatial Attention on the Allocation of Spatial Attention [PDF]
AbstractObjective: The objective of this study was to evaluate the impact of directed and sustained attention on the allocation of visuospatial attention. Healthy people often have left lateral and upward vertical spatial attentional biases. However, it is not known whether there will be an increase in bias toward the attended portion of the stimulus ...
Damon G, Lamb +4 more
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Spatial Distribution of the Attentional Blink [PDF]
In the present study subjects viewed streams of rapid serially presented characters and searched for a target digit. After presentation of the target digit, a second target consisting of an orientation singleton (Experiment 1) or a second digit (Experiment 2) was presented at one of several distances from the first target.
Du, Feng, Abrams, Richard A., Zhang, Kan
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Objects Are Highlighted by Spatial Attention [PDF]
Abstract Selective attention may be focused upon a region of interest within the visual surroundings, thereby improving the perceptual quality of stimuli at that location. It has been debated whether this spatially selective mechanism plays a role in the attentive selection of whole objects in a visual scene.
Antígona Martínez +8 more
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Shifts of attention in the early blind: an ERP study of attentional control processes in the absence of visual spatial information [PDF]
To investigate the role of visual spatial information in the control of spatial attention, event-related brain potentials (ERPs) were recorded during a tactile attention task for a group of totally blind participants who were either congenitally blind or
van Velzen, J. +7 more
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Gradients of spatial attention
Abstract A reaction time technique was used to measure the distribution of attention following a cue to attend at a particular location. Reaction time to a target light increased with the distance of the target location from the cued location. This distance effect held both for targets that were more or less foveal than the cue.
G L, Shulman, J B, Sheehy, J, Wilson
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Parietal stimulation decouples spatial and feature-based attention [PDF]
Everyday visual scenes contain a vast quantity of information, only a fraction of which can guide our behavior. Properties such as the location, color and orientation of stimuli help us extract relevant information from complex scenes (Treisman and ...
C. D. Chambers +13 more
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Role of right posterior parietal cortex in maintaining attention to spatial locations over time [PDF]
Recent models of human posterior parietal cortex (PPC) have variously emphasized its role in spatial perception, visuomotor control or directing attention. However, neuroimaging and lesion studies also suggest that the right PPC might play a special role
Coulthard, E.J. +8 more
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Attentional Distribution and Spatial Language [PDF]
Whether visual spatial attention can be split to several discontinuous locations concurrently is still an open and intensely debated question. We address this question in the domain of spatial language use by comparing two existing and three newly proposed computational models.
Kluth, Thomas +5 more
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