Summary
This study examined brain activity associated with differential melanopic versus visual photoreceptor stimulation in humans, finding that intrinsically photosensitive retinal ganglion cells (ipRGCs) contribute to ocular motor responses and/or attention. These findings have implications for designing lighting that targets specific photoreceptor pathways to modulate alertness and non-visual biological responses.
Key Findings
- ipRGCs were found to play a role in ocular motor responses and/or attentional neural processing beyond their known circadian and pupillary functions.
- The study used differential melanopic photic stimulation to isolate intrinsic ipRGC photo-responses from those of classical visual photoreceptors, identifying distinct cerebral neural correlates.
Categories
The Science of Light: Investigates the neural correlates of melanopsin-driven (ipRGC) photic stimulation in humans, advancing understanding of non-visual photoreception.
Eye Health & Vision: Explores ipRGC contributions to ocular motor responses, relevant to visual system function and photoreceptor biology.
Author(s)
SM Hung, D Milea, AV Rukmini, RP Najjar, JH Tan
Publication Year
2017
Number of Citations
33
Related Publications
The Science of Light
- Phototransduction by retinal ganglion cells that set the circadian clock
- Color appearance models
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- Diminished pupillary light reflex at high irradiances in melanopsin-knockout mice
- Melanopsin is required for non-image-forming photic responses in blind mice
Eye Health & Vision
- Diminished pupillary light reflex at high irradiances in melanopsin-knockout mice
- Genetic reactivation of cone photoreceptors restores visual responses in retinitis pigmentosa
- Melanopsin and rod–cone photoreceptors play different roles in mediating pupillary light responses during exposure to continuous light in humans
- Characteristic patterns of dendritic remodeling in early-stage glaucoma: evidence from genetically identified retinal ganglion cell types
- Intrinsically photosensitive melanopsin retinal ganglion cell contributions to the pupillary light reflex and circadian rhythm