Congenitally absent optic chiasm: Making sense of visual pathways
(Medical Xpress)—One way to increase our understanding of bilateral brains, like our own, is to inspect their paired sensory systems. In our visual system, the optic nerves normally combine at a place called ...
Neuroscience
Apr 15, 2013 |
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Pavlov's rats? Rodents trained to link rewards to visual cues
In experiments on rats outfitted with tiny goggles, scientists say they have learned that the brain's initial vision processing center not only relays visual stimuli, but also can "learn" time intervals and ...
Neuroscience
Jan 23, 2013 |
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Re-tuning responses in the visual cortex
New research led by Shigeru Tanaka of the University of Electro-Communications and visiting scientist at the RIKEN Brain Science Institute has shown that the responses of cells in the visual cortex can be ...
Neuroscience
Dec 21, 2012 |
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Paper examines the illusion of the scintillating grid
(Medical Xpress)—The fascinating but deeply weird illusion of the scintillating grid, where the grid appears to sparkle, has been shown to be more sparkly when you view it with both eyes rather than one ...
Psychology & Psychiatry
Dec 19, 2012 |
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Two heads are better than one: Gene expression reveals molecular mechanisms underlying evolution of cerebral cortex
Dramatic expansion of the human cerebral cortex, over the course of evolution, accommodated new areas for specialized cognitive function, including language. Understanding the genetic mechanisms underlying ...
Neuroscience
Nov 09, 2012 |
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Toward a better understanding of human consciousness
(Medical Xpress)—What consciousness is, and why and how it exists, are some of the oldest questions in philosophy. They are also central to one of the fastest-growing areas of neuroscience.
Psychology & Psychiatry
Sep 17, 2012 |
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Seeing is as seeing does: Spatially-structured retinal input in early development of cortical maps
(Medical Xpress) -- Remarkably, cortical maps show that neurons in the primary visual cortex have specific preferences for the location and orientation of a given visual field stimulus – but how these ...
Neuroscience
Apr 26, 2012 |
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How your eyes deceive you
(Medical Xpress) -- Researchers at the University of Sydney have thrown new light on the tricks the brain plays as it struggles to make sense of the visual and other sensory signals it constantly receives.
Neuroscience
Apr 24, 2012 |
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Experiment shows visual cortex in women quiets when viewing porn
(Medical Xpress) -- Researchers from the University of Groningen Medical Centre in the Netherlands have found that for women at least, watching pornographic videos tends to quiet the part of the brain most heavily involved ...
Neuroscience
Apr 20, 2012 |
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Seeing Beyond the Visual Cortex
(Medical Xpress) -- It's a chilling thought--losing the sense of sight because of severe injury or damage to the brain's visual cortex. But, is it possible to train a damaged or injured brain to "see" again after such a catastrophic ...
Neuroscience
Apr 03, 2012 |
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Attention and awareness uncoupled in brain imaging experiments
In everyday life, attention and awareness appear tightly interwoven. Attending to the scissors on the right side of your desk, you become aware of their attributes, for example the red handles. Vice versa, ...
Neuroscience
Nov 10, 2011 |
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