zondag 27 februari 2011

Increased Stroop interference with better second-language reading skill

 
 

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woensdag 16 februari 2011

Visual cognition

Feed: ScienceDirect Publication: Vision Research
Posted on: woensdag 16 februari 2011 6:42
Author: ScienceDirect Publication: Vision Research
Subject: Visual cognition

 

Publication year: 2011
Source: Vision Research, In Press, Accepted Manuscript, Available online 15 February 2011
Patrick, Cavanagh
Visual cognition, high-level vision, mid-level vision and top-down processing all refer to decision-based scene analyses that combine prior knowledge with retinal input to generate representations. The label "visual cognition" is little used at present, but research and experiments on mid- and high-level, inference-based vision have flourished, becoming in the 21st century a significant, if often understated part, of current vision research. How does visual cognition work? What are its moving parts? This paper reviews the origins and architecture of visual cognition and briefly describes some work in the areas of routines, attention, surfaces, objects, and events (motion, causality, and agency)....


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dinsdag 15 februari 2011

Mechanisms of Percept–Percept and Image–Percept Integration in Vision: Behav...

 
 

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Publication year: 2011
Source: Journal of Experimental Psychology: Human Perception and Performance, Volume 37, Issue 1, February 2011, Pages 1-11
Silvia, Dalvit , Martin, Eimer
Previous research has shown that the detection of a visual target can be guided not only by the temporal integration of two percepts, but also by integrating a percept and an image held in working memory. Behavioral and event-related brain potential (ERP) measures were obtained in a target detection task that required temporal integration of 2 successively presented stimuli in the left or right hemifield. Task performance was good when both displays followed each other immediately (percept–percept integration) and when displays were separated by a 300- or 900-ms interval (image–percept integration), but was poor with intermediate interstimulus intervals. An enhanced...

 
 

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Motion Psychophysics: 1985-2010

 

 

Feed: ScienceDirect Publication: Vision Research
Posted on: dinsdag 15 februari 2011 6:38
Author: ScienceDirect Publication: Vision Research
Subject: Motion Psychophysics: 1985-2010

 

Publication year: 2011
Source: Vision Research, In Press, Accepted Manuscript, Available online 13 February 2011
David, Burr , Peter, Thompson
This review traces progress made in the field of visual motion research from 1985 through to 2010. While it is certainly not exhaustive, it attempts to cover most of the major achievements during that period, and speculate on where the field is heading.


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Grasping the non-conscious: Preserved grip scaling to unseen objects for immediate but not delayed grasping following a unilateral lesion to primary visual cortex

 

 

Feed: ScienceDirect Publication: Vision Research
Posted on: dinsdag 15 februari 2011 6:38
Author: ScienceDirect Publication: Vision Research
Subject: Grasping the non-conscious: Preserved grip scaling to unseen objects for immediate but not delayed grasping following a unilateral lesion to primary visual cortex

 

Publication year: 2011
Source: Vision Research, In Press, Accepted Manuscript, Available online 13 February 2011
Robert L., Whitwell , Christopher L., Striemer , David A., Nicolle , Melvyn A., Goodale
Patients with damage to primary visual cortex can sometimes direct actions towards 'unseen' targets located in areas of the visual field that are deemed 'blind' on the basis of static perimetry tests. Here, we show that a patient with a complete right homonymous hemianopia after a V1 lesion remains sensitive to the width of objects presented in her blind field but only when reaching out to grasp them in 'real-time'. A subsequent fMRI experiment revealed spared extra-geniculostriate pathways, which may mediate her preserved abilities. Taken together, the results support the view that visually guided movements can be mediated by pathways...


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zondag 6 februari 2011

When believing is seeing - The role of predictions in shaping visual perception

 
 

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vrijdag 4 februari 2011

"Fresh Eyes" http://sites.google.com/site/aruppertsberg/

I guess I should have posted this link earlier...

http://sites.google.com/site/aruppertsberg/

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donderdag 3 februari 2011

Representing multiple objects as an ensemble enhances visual cognition

 
 

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Publication year: 2011
Source: Trends in Cognitive Sciences, In Press, Corrected Proof, Available online 2 February 2011
George A., Alvarez
The visual system can only accurately represent a handful of objects at once. How do we cope with this severe capacity limitation? One possibility is to use selective attention to process only the most relevant incoming information. A complementary strategy is to represent sets of objects as a group or ensemble (e.g. represent the average size of items). Recent studies have established that the visual system computes accurate ensemble representations across a variety of feature domains and current research aims to determine how these representations are computed, why they are computed and where they are coded in the brain. Ensemble...

 
 

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woensdag 2 februari 2011

Representing multiple objects as an ensemble enhances visual cognition

 
 

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Publication year: 2011
Source: Trends in Cognitive Sciences, In Press, Corrected Proof, Available online 2 February 2011
George A., Alvarez
The visual system can only accurately represent a handful of objects at once. How do we cope with this severe capacity limitation? One possibility is to use selective attention to process only the most relevant incoming information. A complementary strategy is to represent sets of objects as a group or ensemble (e.g. represent the average size of items). Recent studies have established that the visual system computes accurate ensemble representations across a variety of feature domains and current research aims to determine how these representations are computed, why they are computed and where they are coded in the brain. Ensemble...

 
 

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