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Last updated on April 23, 2014 at 1:22 EDT

Latest retinal ganglion Stories

2011-03-09 18:19:05

Retinal ganglion cells can recognize directions thanks to amacrine cells The properties of optical stimuli need to be conveyed from the eye to the brain. To do this efficiently, the relevant information is extracted by pre-processing in the eye. For example, some of the so-called retinal ganglion cells, which transmit visual information to the brain via the optic nerve, only react to light stimuli moving in a particular direction. This direction selectivity is generated by inhibitory...

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2010-10-07 09:55:50

Salk researchers map functional connections between retinal neurons at single-cell resolution By comparing a clearly defined visual input with the electrical output of the retina, researchers at the Salk Institute for Biological Studies were able to trace for the first time the neuronal circuitry that connects individual photoreceptors with retinal ganglion cells, the neurons that carry visuals signals from the eye to the brain. Their measurements, published in the Oct. 7, 2010, issue of the...

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2009-12-10 08:35:00

Mouse study suggests that response to injury-induced growth factors can be revived Brain and spinal-cord injuries typically leave people with permanent impairment because the injured nerve fibers (axons) cannot regrow. A study from Children's Hospital Boston, published in the December 10 issue of the journal Neuron, shows that axons can regenerate vigorously in a mouse model when a gene that suppresses natural growth factors is deleted. Adding to a previous study published in Science last...

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2008-08-18 09:15:00

A series of tests on mice has taught British scientists that sleepiness is controlled by a set of nerve cells in the eye.  Developers believe this discovery could mean a new target for drug makers. It has been widely known that the amount of light affects alertness. That's why dimly lit rooms lead people to feel drowsy, but the biological mechanism for this has been hidden. University of Oxford researchers have found retinal ganglion cells play a key role.  When these cells were...