Neuroscience
A light switch inside the brain
Activating and deactivating individual nerve cells in the brain is something many neuroscientists wish they could do, as it would help them to better understand how the brain works.
Jan 18, 2013
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News tagged with light stimuli
Medical research
The end of a dogma: Bipolar cells generate action potentials
To make information transmission to the brain reliable, the retina first has to "digitize" the image. Until now, it was widely believed that this step takes place in the retinal ganglion cells, the output neurons of the retina. ...
Dec 19, 2012
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Neuroscience
Hear to see: New method for the treatment of visual field defects
Patients who are blind in one side of their visual field benefit from presentation of sounds on the affected side. After passively hearing sounds for an hour, their visual detection of light stimuli in the blind half of their ...
May 30, 2012
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Medical research
An 'off' switch for pain: Chemists build light-controlled neural inhibitor
Pain? Just turn it off! It may sound like science fiction, but researchers based in Munich, Berkeley and Bordeaux have now succeeded in inhibiting pain-sensitive neurons on demand, in the laboratory. The crucial element in ...
Feb 22, 2012
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Neuroscience
Optical Illusion experiment shows higher brain functions involved in pupil size control
(Medical Xpress) -- We all know that our pupils contract when our eyes are exposed to increases in the brightness of light. The reason is to both protect the delicate inner workings of our eyes and to help provide for optimum ...
