(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 decreases sensitivity ...
(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 maps develop and ...
Standard models of perception are stimulus-driven, meaning that the external perceptual event drives the brain's perception-related activity. However, the tide may be turning: recent ideas suggest that our perceptual experiences ...
(Medical Xpress)—An enduring neurobiological mystery is why do vertebrate rods and cones shut down their transmitter release in response to a light stimulus. If that particular question is too broad, then consider a slight ...
Mice given cocaine showed rapid growth in new brain structures associated with learning and memory, according to a research team from the Ernest Gallo Clinic and Research Center at UC San Francisco. The findings suggest a ...
Aug 25, 2013
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(Medical Xpress)—Researchers at Lyon Neuroscience Research Center and University Lyon in France, have found that people who regularly recall their dreams have different alpha brain wave patterns than do people who rarely ...
(Medical Xpress)—Neurophysiologist like to think of neurons as communicating with spikes. If that were the whole story, it might be possible to imagine spike codes which could then be used to estimate the flow of information, ...
(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 person who is ...
(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 Royal Society B shows ...
Sep 7, 2012
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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 this capacity. Dopamine-containing ...
Jul 18, 2012
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