Results 171 to 180 of about 6,987 (212)

Sex-specific relationship between melanopsin-dependent light sensitivity and chronotype across the lifespan

open access: yes
van der Zwet G   +10 more
europepmc   +1 more source

Can We See With Melanopsin?

open access: yesAnnual Review of Vision Science, 2020
A small fraction of mammalian retinal ganglion cells are directly photoreceptive thanks to their expression of the photopigment melanopsin. These intrinsically photosensitive retinal ganglion cells (ipRGCs) have well-established roles in a variety of ...
Nina Milosavljevic   +2 more
exaly   +2 more sources

Melanopsin Enhances Image Persistence

open access: yesCurrent Biology, 2023
Contributions of the inner retinal photopigment melanopsin to human visual perception are incompletely understood. Here, we use a four-primary display to produce stimuli differing in melanopsin versus cone contrast in psychophysical paradigms in eight subjects with normal color vision.
Robert J Lucas   +2 more
exaly   +3 more sources

The Human Visual Cortex Response to Melanopsin-Directed Stimulation Is Accompanied by a Distinct Perceptual Experience

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2017
The photopigment melanopsin supports reflexive visual functions in people, such as pupil constriction and circadian photoentrainment. What contribution melanopsin makes to conscious visual perception is less studied.
Andrew S Böck   +2 more
exaly   +2 more sources

Melanopsin: From a Small Molecule to Brain Functions

open access: yesNeuroscience and Biobehavioral Reviews, 2020
Melanopsin, a G family coupled receptor, found within the ganglion cell layer in the retina, plays an important role in non-image-forming visual functions, including hormone secretion, entrainment of circadian rhythms, cognitive and affective processes ...
Olga I Krzysztynska-Kuleta   +2 more
exaly   +2 more sources
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Retina and melanopsin neurons

2021
Melanopsin retinal ganglion cells (mRGCs) are the third class of retinal photoreceptors with unique anatomical, electrophysiological, and biological features. There are different mRGC subtypes with differential projections to the brain. These cells contribute to many nonimage-forming functions of the eye, the most relevant being the photoentrainment of
Chiara La Morgia   +2 more
openaire   +3 more sources

Melanopsin Vision

2022
Intrinsically photosensitive retinal ganglion cells (ipRGCs) are the most recently discovered photoreceptor class in the human retina. This Element integrates new knowledge and perspectives from visual neuroscience, psychology, sleep science and architecture to discuss how melanopsin-mediated ipRGC functions can be measured and their circuits ...
Daniel S. Joyce   +4 more
openaire   +1 more source

Illumination of the Melanopsin Signaling Pathway

Science, 2005
In mammals, a small population of intrinsically photosensitive retinal ganglion cells (ipRGCs) plays a key role in the regulation of nonvisual photic responses, such as behavioral responses to light, pineal melatonin synthesis, pupillary light reflex, and sleep latency.
Satchidananda, Panda   +5 more
openaire   +2 more sources

Melanopsin and inner retinal photoreception

Cellular and Molecular Life Sciences, 2009
Over the last ten years there has been growing acceptance that retinal photoreception among mammals extends beyond rods and cones to include a small number of intrinsically photosensitive retinal ganglion cells (ipRGCs). These ipRGCs are capable of responding to light in the absence of rod/cone input thanks to expression of an opsin photopigment called
Bailes, Helena J.   +1 more
openaire   +2 more sources

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