The visual system as economist: Neural resource allocation in visual adaptation
(Medical Xpress)—It has long been held that in a new environment, visual adaptation should improve visual performance. However, evidence has contradicted this expectation: Adaptation sometimes not only ...
Neuroscience
Mar 30, 2013 |
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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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Predicting repeat offenders with brain scans: You be the judge
(Medical Xpress)—Despite the well known inaccuracies of polygraph lie detectors, they remain in widespread, if selective, use by the criminal justice system. While they are far from truth machines, if the ...
Neuroscience
Mar 26, 2013 |
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Sorting out stroking sensations: Biologists find individual neurons in the skin that react to massage
The skin is a human being's largest sensory organ, helping to distinguish between a pleasant contact, like a caress, and a negative sensation, like a pinch or a burn. Previous studies have shown that these ...
Neuroscience
Jan 30, 2013 |
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Neuroscientists pinpoint location of fear memory in amygdala
A rustle of undergrowth in the outback: it's a sound that might make an animal or person stop sharply and be still, in the anticipation of a predator. That "freezing" is part of the fear response, a reaction to a stimulus ...
Neuroscience
Jan 28, 2013 |
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How attention helps you remember
A new study from MIT neuroscientists sheds light on a neural circuit that makes us likelier to remember what we're seeing when our brains are in a more attentive state.
Neuroscience
Sep 27, 2012 |
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Ready, steady, slow! Why top sportsmen might have 'more time' on the ball
(Medical Xpress)—Professional ball game players report the sensation of the ball 'slowing-down' just before they hit it. Confirming these anecdotal comments, a new study published in Proceedings of the Ro ...
Neuroscience
Sep 07, 2012 |
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In the insect brain, dopamine-releasing nerve cells are crucial to the formation of both punished, rewarded memories
Children quickly learn to avoid negative situations and seek positive ones. But humans are not the only species capable of remembering positive and negative events; even the small brain of a fruit fly has ...
Genetics
Jul 18, 2012 |
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Scientists identify protein that sends 'painful touch' signals
In two landmark papers in the journal Nature this week, scientists at The Scripps Research Institute report that they have identified a class of proteins that detect "painful touch."
Medical research
Feb 19, 2012 |
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Sense of touch reproduced through prosthetic hand
In a study recently published in IEEE Transactions on Neural Systems and Rehabilitation Engineering, neurobiologists at the University of Chicago show how an organism can sense a tactile stimulus, in real time, through an art ...
Neuroscience
May 10, 2013 |
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Nerve stimulation for severe depression changes brain function
For nearly a decade, doctors have used an implanted electronic stimulator to treat severe depression in people who don't respond to standard antidepressant therapy.
Psychology & Psychiatry
May 07, 2013 |
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Flies reveal that a sense of smell, like a melody, depends upon timing
(Medical Xpress)—The sense of smell remains a mystery in many respects. Fragrance companies, for instance, know it is crucial that chemical compounds in perfumes reach nostrils at different rates to create ...
Neuroscience
Apr 10, 2013 |
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Reseachers develop holographic technique for bionic vision
Researchers led by biomedical engineering Professor Shy Shoham of the Technion-Israel Institute of Technology are testing the power of holography to artificially stimulate cells in the eye, with hopes of ...
Medical research
Feb 26, 2013 |
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Memory appears susceptible to eradication of fear responses
Fear responses can only be erased when people learn something new while retrieving the fear memory. This is the conclusion of a study conducted by scientists from the University of Amsterdam (UvA) and published in the leading ...
Psychology & Psychiatry
Feb 18, 2013 |
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Discovery of ways to optimize light sources for vision could lead to billions of dollars in energy savings
Vision researchers at Barrow Neurological Institute have made a groundbreaking discovery into the optimization of light sources to human vision. By tuning lighting devices to work more efficiently with the human brain the ...
Neuroscience
Nov 15, 2012 |
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