Results 281 to 290 of about 5,920,185 (311)
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Caffeine and visuo-spatial attention
Psychopharmacology, 1998The effects of two doses of caffeine (1.5 and 3 mg/kg) on various aspects of visual selective attention were investigated in 24 healthy human subjects. Specific task conditions were compared to provide measures of selectivity for a location in the visual field, of distractibility, of selectivity among response alternatives, and of strategic influences.
Kenemans, J.L., Verbaten, M.N.
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A Mixture Distribution of Spatial Attention
Experimental Psychology, 2013Although it may seem paradoxical, the unified-focus and multiple-foci theories of spatial selective attention are both well supported by experimental evidence. However, the apparent contradiction is illusory and the two competing views may be reconciled by a closer examination of the spatial mechanisms involved.
Jing, Feng, Ian, Spence
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The role of spatial attention during spatial encoding
Cognitive Neuroscience, 2013In the present fMRI study, we aimed to assess whether spatial encoding is mediated by spatial attention. During encoding, participants were presented with abstract shapes to the left or right of fixation. During retrieval, old and new shapes were presented at fixation and participants classified each shape as "old-left", "old-right", or "new ...
Preston P, Thakral, Scott D, Slotnick
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Attenuation of spatial attentional asymmetries with poor sustained attention
NeuroReport, 2004The co-existence of deficits in sustained and spatial attention in patients with acquired damage to the right cerebral hemisphere has led to the proposition that sustained attention could be a marker for left spatial inattention, or neglect. We investigated the possibility that reductions in leftward spatial attentional asymmetries could arise from ...
Bellgrove, M. A. +3 more
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Orienting of attention and spatial cognition
Cognitive ProcessingHumans orient to their sensory world through foveation of target location or through covert shifts of attention. Orienting provides primacy to the selected location and in humans improves the precision of discrimination. Covert orienting appears to arise separately from the mechanisms involved in saccadic eye movements.
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Development of Visual-Spatial Attention
2019This chapter reviews literature on development of visual-spatial attention. A brief overview of brain mechanisms of visual perception is provided, followed by discussion of neural maturation in the prenatal period, infancy, and childhood. This is followed by sections on gaze control, eye movement systems, and orienting.
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A Distributed Model of Spatial Visual Attention
2005Although biomimetic autonomous robotics relies on the massively parallel architecture of the brain, a key issue for designers is to temporally organize behaviour. The distributed representation of the sensory information has to be coherently processed to generate relevant actions.
Vitay, Julien +2 more
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Hypnotizability and spatial attentional functions.
Archives italiennes de biologie, 2007Many theories of hypnotic responding have proposed that differences in hypnotic trait rely on differences in frontal attentional functions. Evidence of hypnotizability-related attentional abilities are, however, very scant. This study was designed to investigate the relationship between hypnotizability and executive control components of attention in ...
CASTELLANI, ELEONORA +2 more
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Residual Spectral–Spatial Attention Network for Hyperspectral Image Classification
IEEE Transactions on Geoscience and Remote Sensing, 2021Jianing Wang, Shichuan Chen, Minghao Zhu
exaly