Summary
This work investigates non-invasive physiological signals such as heart rate variability to assess circadian phase and related sleep disorders in ambulatory settings, potentially enabling practical circadian monitoring without laboratory conditions. Understanding individual circadian phase through wearable monitoring could inform personalized lighting interventions for sleep and circadian health.
Key Findings
- ipRGCs receive input from rods and cones in addition to intrinsic melanopsin-based phototransduction, giving them a distinct response profile to light stimuli.
- Some blind individuals retain circadian photoentrainment capacity via ipRGCs despite lacking conscious vision, highlighting the non-visual role of melanopsin.
Categories
Sleep & Circadian Health: The paper focuses on ambulatory assessment of circadian phase and sleep disorders using non-invasive physiological measurements including HRV.
The Science of Light: The abstract references ipRGCs and melanopsin, discussing photoreceptor biology relevant to circadian entrainment.
Author(s)
EG Ponce
Publication Year
2017
Related Publications
Sleep & Circadian Health
- Phototransduction by retinal ganglion cells that set the circadian clock
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- The twoāprocess model of sleep regulation: a reappraisal
- Melanopsin is required for non-image-forming photic responses in blind mice
- Strange vision: ganglion cells as circadian photoreceptors
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