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Retinal cells thoughts to be the same are not, JHU biologist says
Date:7/25/2011

ings, light has an impact on many of our physiological functions, including sleep and mood," he explains. "We are interested in the cellular, molecular and behavioral pathways by which light has an impact on us, independent of how and what we literally 'see' with our eyes. This includes setting our internal, biological clock to the day and night and constricting our pupils to control the amount of light coming through to our retinas."

In a previous study, Hattar's team revealed that these cells -- called "intrinsically photosensitive Retinal Ganglion Cells" -- also play a role in image formation. Formerly, it was thought that the ipRGCs' role was limited to sleep-wake cycles and pupillary responses.


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Contact: Lisa DeNike
Lde@jhu.edu
443-287-9960
Johns Hopkins University
Source:Eurekalert  

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