How To Use Photopigment In A Sentence
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It could involve retinal photoreceptors, extraretinal photoreceptors in the pineal or elsewhere, photopigments such as cryptochromes within the retina or brain, or it might be mediated through a non-visual pathway.
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Their physiological basis is reasonably well understood; they result from the saturation or bleaching of retinal photopigments under intense or prolonged illumination.
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The ability to see the world as humans do, he says, ‘requires an additional sensor—or photopigment—and the nervous system being able to compare the signals.’
Three Color Blind Mice: See How They See : Edward Champion’s Reluctant Habits
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Vision scientists knew that retinal, the derivative of vitamin A, was part of every photopigment molecule and that various forms of vitamin A existed.
Mind Hacks: changing diet might allow you to see infrared
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For example, he would claim that a photopigment without any linkers or down stream signalling molecules would be useless, and unselectable by natural selection.
Blind Mice vs Behe; the Evolution of Vision - The Panda's Thumb
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Invertebrates have rhabodomeric cells that use a special version of the photopigment called r-opsin, and activate cells by a particular pathway called a phospholipase-C cascade.
PZ Myers - The Deepest Links (on Evolution)
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Every photopigment consists of a derivative of vitamin A linked to a protein molecule called an opsin.
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The photopigment melanopsin has been suggested to act as a dominant photoreceptor in nonvisual photoreception including resetting of the circadian clock (entrainment), direct tuning or masking of vital status (activity, sleep/wake cycles, etc.), and the pupillary light reflex (PLR).
PLoS ONE Alerts: New Articles
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Japan The photopigment melanopsin has been suggested to act as a dominant photoreceptor in nonvisual photoreception including resetting of the circadian clock (entrainment), direct tuning or masking of vital status (activity, sleep/wake cycles, etc.), and the pupillary light reflex
PLoS ONE Alerts: New Articles
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There is no physiological evidence for a third photopigment sensitive to blue wavelengths.
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Invertebrates have rhabodomeric cells that use a special version of the photopigment called r-opsin, and activate cells by a particular pathway called a phospholipase-C cascade.
PZ Myers - The Deepest Links (on Evolution)
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There are three types of anomalous trichromatism named according to which photopigment is affected: Protanomalous trichromatism, Deuteranomalous trichromatism and Tritanomalous trichromatism.
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Is Photosensitive Epilepsy Less Common in Males Due to Variation in X Chromosome Photopigment Genes?
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These 'nonvisual' light responses have been suggested to be predominantly mediated by the novel photopigment melanopsin Pituitary adenylate cyclase-activating polypeptide (PACAP) belongs to the vasoactive intestinal polypeptide (VIP)/glucagons/secretin family and plays pleiotropic roles as a neurotransmitter, neuromodulator and neurotrophic factor
PLoS ONE Alerts: New Articles
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These 'nonvisual' light responses have been suggested to be predominantly mediated by the novel photopigment melanopsin Pituitary adenylate cyclase-activating polypeptide (PACAP) belongs to the vasoactive intestinal polypeptide (VIP)/glucagons/secretin family and plays pleiotropic roles as a neurotransmitter, neuromodulator and neurotrophic factor
PLoS ONE Alerts: New Articles
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The green and red genes encode photopigments that respond to different, overlapping regions in the middle-to-long wavelength spectrum and are adjacent to each other on the X chromosome.
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In order for humans to see infrared, the spectral sensitivity of some human photopigment would have to be changed.
Mind Hacks: August 2005 Archives
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The difference absorption spectroscopy in both living plasmodium and cell homogenate shows that there is a photopigment which converts reversibly between red and far-red types.
