Filters








341,698 Hits in 9.9 sec

A Time-Dependent Model of Information Capacity of Visual Attention [chapter]

Xiaodi Hou, Liqing Zhang
2006 Lecture Notes in Computer Science  
This model suggests that the information capacity of visual attention is time-dependent.  ...  What a human's eye tells a human's brain? In this paper, we analyze the information capacity of visual attention.  ...  The time-dependent capacity of attention can help us find out what kind of information is usually perceived by human vision system.  ... 
doi:10.1007/11893028_15 fatcat:7tyfhsitrbdgrn5zwj523pb4g4

The behavioral ecology of a cognitive constraint: limited attention

C. W. Clark
2003 Behavioral Ecology  
Our model indicates that because of the complex interplay between the costs and benefits associated with a given attentional capacity, limited attention can be an optimal strategy, which allows effective  ...  Limited attention may constrain animal behavior in situations in which the rate of relevant information exceeds the threshold processing capacity of the brain.  ...  Westneat, A. Mooers, B. Roitberg, and D. Wiegmann for comments on the manuscript. Our research was supported by National Environment Research Council operating grants to C.W.C. and B.R.  ... 
doi:10.1093/beheco/14.2.151 fatcat:55yb7qayhveytfozs5kagqxx5e

Visual working memory as visual attention sustained internally over time

Marvin M. Chun
2011 Neuropsychologia  
Visual working memory (VWM) allows visual information to be actively extended over time in the absence of sensory input.  ...  A central defining feature of visual working memory is that it has limited capacity (Cowan, 2001 ) -a property shared by visual attention mechanisms that select and enhanced visual information (Chun  ... 
doi:10.1016/j.neuropsychologia.2011.01.029 pmid:21295047 fatcat:7gsdboxfyfdvzfsxou4dxzjnya

The McGurk effect: An investigation of attentional capacity employing response times

Nicholas Altieri, Jennifer J. Lentz, James T. Townsend, Michael J. Wenger
2016 Attention, Perception & Psychophysics  
We quantify the amount of integration relative to the predictions of a parallel independent model as a function of attention and congruency between auditory and visual signals.  ...  Our findings support a parallel model of auditory-visual integration with interactions between auditory and visual channels.  ...  Acknowledgments This work was supported by the National Institute of Health , the National Institute of Health Speech Training , and also by NIMH 057717-07 and AFOSR FA9550-07-1-0078 grants to James T.  ... 
doi:10.3758/s13414-016-1133-4 pmid:27188651 fatcat:6q2gsrwhsneu7blqt2t5xx5k4a

A Review of Occlusion as a Tool to Assess Attentional Demand in Driving

Tuomo Kujala, Katja Kircher, Christer Ahlström
2021 Human Factors  
The aim of this review is to identify how visual occlusion contributes to our understanding of attentional demand and spare visual capacity in driving and the strengths and limitations of the method.  ...  The proper selection of occlusion settings depends on the target of the research.  ...  This is in line with the presumption that occlusion time has a correlation with spare visual capacity.  ... 
doi:10.1177/00187208211010953 pmid:33908809 fatcat:vzqmbf5bsfbadjnsdi3xke26l4

Ensemble perception and focused attention: Two different modes of visual processing to cope with limited capacity

Jongsoo Baek, Sang Chul Chong
2020 Psychonomic Bulletin & Review  
The visual system has a limited capacity for dealing with complex and redundant information in a scene.  ...  The visual system can represent multiple items as population responses and read out relevant information using the two modes of attention.  ...  For helpful comments and discussion of this manuscript, we thank Min-Suk Kang and our lab members.  ... 
doi:10.3758/s13423-020-01718-7 pmid:32128720 fatcat:hvyvi44kerdsjmwezewxl243ty

Conscious visual memory with minimal attention

Yair Pinto, Annelinde R. Vandenbroucke, Marte Otten, Ilja G. Sligte, Anil K. Seth, Victor A. F. Lamme
2017 Journal of experimental psychology. General  
Before such interference, however, a much larger capacity store, called fragile memory (FM), which is easily overwritten by newly presented visual information, is present.  ...  Whether these different stores depend equally on spatial attention is central to the debate on the role of attention in conscious vision.  ...  Finally, we predicted that if in this model FM-core did depend on attention, then there would be a relative capacity loss somewhere between zero and set size, depending on the effect of attention on FM-core  ... 
doi:10.1037/xge0000255 pmid:28134544 fatcat:dtrmgl4nw5d2lpawtmbdbzecna

The information capacity of visual attention

Preeti Verghese, Denis G. Pelli
1992 Vision Research  
Is visual attention mediated by a general-purpose processor with a small data capacity? Such an attentive processor could perform a wide range of transformations upon a small amount of image data.  ...  Visual attention Span of attention Critical number Information capacity Journal of Experimental Psychology: Human Perception and Performance, 15, 419-433.  ...  Some of these results were presented at the 1990 meeting of the Association for Research in Vision and Ophthalmology in Sarasota, Florida (Verghese & Pelli, 1990) .  ... 
doi:10.1016/0042-6989(92)90040-p pmid:1604866 fatcat:q54ydhmplvbq3coq3la4ljzh4i

Visual attention and aging

Karen E Groth
2000 Frontiers in Bioscience  
Age differences in time-sharing 9. Selective attention and the multichannel model of visual information processing 9.1. The neural basis of visual perception: The multichannel model 9.2.  ...  Object-based selective attention 7.2.1. Object-based selective attention and aging 8. Beyond a general attentional resource 8.1. Capacity-sharing 8.2. Time-sharing: A third aspect of attention 8.2.1.  ...  SELECTIVE ATTENTION AND THE MULTICHANNEL MODEL OF VISUAL INFORMATION PROCESSING The notion of object-based selective attention emphasizes a preattentive selection process and a more focal attention to  ... 
doi:10.2741/a511 fatcat:bur4rnqqhrho7d76h4utpqtkhi

Working memory capacity and the scope and control of attention

Zach Shipstead, Tyler L. Harrison, Randall W. Engle
2015 Attention, Perception & Psychophysics  
Complex span and visual arrays are two common measures of working memory capacity that are respectively treated as measures of attention control and storage capacity.  ...  This indicates that the ability to engage attention in a controlled manner is a critical aspect of working memory capacity, regardless of the type of task that is used to measure this construct.  ...  Acknowledgments This work was supported by grants from the Office of Naval Research (N00014-12-1-0406 and N00014-12-1-1011) and the Center for Advanced Study of Language (H98230-07-D-0175 and H98230-07  ... 
doi:10.3758/s13414-015-0899-0 pmid:25911154 fatcat:crkjfvpg5fdaxjevpd5nvrbw54

Causes and Consequences of Limited Attention

Reuven Dukas
2004 Brain, Behavior and Evolution  
This review focuses on the evolutionary causes and consequences of limited attention, defined as the restricted rate of information processing by the brain.  ...  A recent incorporation of that mechanistic knowledge into an ecological model suggests that limited attention is an optimal strategy that balances effective yet economical search for cryptic objects.  ...  Limited Attention Brain Behav Evol 2004;63:197-210  ... 
doi:10.1159/000076781 pmid:15084813 fatcat:3ee5mtub65c7jb56rb5g7wyerq

The mechanisms of working memory capacity: Primary memory, secondary memory, and attention control

Zach Shipstead, Dakota R.B. Lindsey, Robyn L. Marshall, Randall W. Engle
2014 Journal of Memory and Language  
Structural equation modeling reveals that each of these mechanisms is important to explaining individual differences in working memory capacity.  ...  Specifically, complex span (processing and storage) and visual arrays (change detection) performance is strongly related to a person's attention control, while running memory span (memory for last n items  ...  Study of Language (H98230-07-D-0175 and H98230-07-D-0175).  ... 
doi:10.1016/j.jml.2014.01.004 fatcat:u4nxmfaiqjdyfp46iagxhxskk4

The Role of Visual Processing Speed in Reading Speed Development

Muriel Lobier, Matthieu Dubois, Sylviane Valdois, Jason Jeremy Sinclair Barton
2013 PLoS ONE  
A steady increase in reading speed is the hallmark of normal reading acquisition. However, little is known of the influence of visual attention capacity on children's reading speed.  ...  We used the Theory of Visual Attention to estimate visual processing speed and visual short-term memory capacity from a multiple letter report task in eight and nine year old children.  ...  In this model, visual attention capacity is modeled by a visuo-attentional window.  ... 
doi:10.1371/journal.pone.0058097 pmid:23593117 pmcid:PMC3617167 fatcat:heqifzhpybdrxbqud6dkkpfj2y

Cognitive aging on latent constructs for visual processing capacity: a novel structural equation modeling framework with causal assumptions based on a theory of visual attention

Simon Nielsen, L. Inge Wilms
2015 Frontiers in Psychology  
To answer questions of how cognitive aging affects specific aspects of visual processing capacity, we used confirmatory factor analyses in Structural Equation Modeling (SEM; Model 2), informed by functional  ...  Keywords: cognitive aging, visual attention, visual short-term memory, structural equation modeling, a theory of visual attention, SEM, TVA www.frontiersin.org January 2015 | Volume 5 | Article 1596 |  ...  In addition we wish to thank a number of colleagues for their help with this study.  ... 
doi:10.3389/fpsyg.2014.01596 pmid:25642206 pmcid:PMC4295434 fatcat:rexumozed5fq3nevlpbhoeomma

Visual attention and aging

Karen, E. Groth
2000 Frontiers in Bioscience  
SELECTIVE ATTENTION AND THE MULTICHANNEL MODEL OF VISUAL INFORMATION PROCESSING The notion of object-based selective attention emphasizes a preattentive selection process and a more focal attention to  ...  Within the model, low spatial frequency, global form information becomes available in the visual system very quickly after the onset of a stimulus but is of very short duration.  ... 
doi:10.2741/groth pmid:10704152 fatcat:bzdt3vwapze45fonz5t3ulfvxe
« Previous Showing results 1 — 15 out of 341,698 results