Neuroscience meets magic

Neuroscience TV

 

 

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Neuroscience meets magic

via Scientific American on 10/28/10

Brain scientists Stephen Macknik and Susana Martinez-Conde explain the science behind the mental manipulations of gentleman thief Apollo Robbins.

 

 

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Perceptual Learning in Vision Research

Review on perceptual learning

 

 

Feed: ScienceDirect Publication: Vision Research
Posted on: dinsdag 26 oktober 2010 6:07
Author: ScienceDirect Publication: Vision Research
Subject: Perceptual Learning in Vision Research

 

Publication year: 2010 Source: Vision Research, In Press, Accepted Manuscript, Available online 23 October 2010 Dov, Sagi Reports published in Vision Research during the late years of the 20th century described surprising effects of long-term sensitivity improvement with some basic visual tasks as a result of training. These improvements, found in adult human observers, were highly specific to simple visual features, such as location in the visual field, spatial-frequency, local and global orientation, and in some cases even the eye of origin. The results were interpreted as arising from the plasticity of sensory brain regions that display those features of specificity within their constituting neuronal subpopulations. A new view of the visual cortex has emerged, according to...

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fhermens@yahoo.com has sent you a New Scientist story.

Your friend thought you should see this article on newscientist.com today.

Moving illusions: Now you see it, now you don't
http://www.newscientist.com/article/dn19611

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Their message:
The fading seems to work too with moving random dots. Is the conclusion that these dots are grouped?

NewScientist.com is the world's leading online science and technology news service, with a global network of award-winning journalists. Visit www.newscientist.com now for constantly updated and authoritative reporting that's both fast and fascinating.

Detection of Convexity and Concavity in Context

Feed: ScienceDirect Publication: Journal of Experimental Psychology: Human Perception and Performance
Posted on: zaterdag 23 oktober 2010 7:23
Author: ScienceDirect Publication: Journal of Experimental Psychology: Human Perception and Performance
Subject: Detection of Convexity and Concavity in Context

 

Publication year: 2008 Source: Journal of Experimental Psychology: Human Perception and Performance, Volume 34, Issue 4, August 2008, Pages 775-789 Marco, Bertamini Sensitivity to shape changes was measured, in particular detection of convexity and concavity changes. The available data are contradictory. The author used a change detection task and simple polygons to systematically manipulate convexity/concavity. Performance was high for detecting a change of sign (a new concave vertex along a convex contour or a new convex vertex along a concave contour). Other things being equal, there was no evidence of an advantage for detecting a new concavity compared with a new convexity, for detecting a change of angle to a concave vertex compared with a convex vertex, for detecting a change within...

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50 ideas to change science: Neuroscience

 

 

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50 ideas to change science: Neuroscience

via New Scientist - Online News on 10/14/10

Thanks to better brain imaging and biological insights, we're closing in on the neurons of consciousness and the subtleties of our mental machinery

 

 

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Reversed Tilt Effect for Dichoptic Stimulation in Vertical Meridian

 

 

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Reversed Tilt Effect for Dichoptic Stimulation in Vertical Meridian

via ScienceDirect Publication: Vision Research op 11-10-10

Publication year: 2010
Source: Vision Research, In Press, Accepted Manuscript, Available online 10 October 2010
Gerald, Westheimer
The orientation of a test line appears shifted away from that of contextual contours. This repulsion in the orientation domain manifests itself in, for example, the tilt aftereffect, the simultaneous orientation contrast, and the Zöllner illusion. Attractive rather than repulsive interaction has been reported for collinear inducing configurations at small inducing angles. Here it is shown that the tilt induced in a monocular vertical foveal test line by a single centered inducing line is repulsive when both are in the same eye, but becomes attractive for dichoptic stimulation. This occurs for only a narrow range of test-line/inducing-line separations and varies...

 

 

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The exploitation of Gestalt principles by magicians

http://www.perceptionweb.com/abstract.cgi?id=p6766

I have the PDF on my computer, so just send me an email if you're interested.

----
Krista Overvliet, PhD.
 
Laboratory of  Experimental Psychology
University of Leuven
Tiensestraat 102, bus 3711
Room 04.03
3000 Leuven
Belgium
 
phone: +3216326146
skype: kristaovervliet
krista.overvliet@gmail.com
krista.overvliet@psy.kuleuven.be
http://web.me.com/krista.overvliet