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Daniel S. Joyce
Researcher at University of Nevada, Reno
Publications - 19
Citations - 304
Daniel S. Joyce is an academic researcher from University of Nevada, Reno. The author has contributed to research in topics: Intrinsically photosensitive retinal ganglion cells & Circadian rhythm. The author has an hindex of 7, co-authored 14 publications receiving 205 citations. Previous affiliations of Daniel S. Joyce include Stanford University & Queensland University of Technology.
Papers
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Journal ArticleDOI
Melanopsin-mediated pupil function is impaired in Parkinson's disease.
TL;DR: In this article, melanopsin and rod/cone photoreceptors were evaluated to determine if non-motor symptoms observed in Parkinson's disease are linked to ipRGC dysfunction.
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Temporal characteristics of melanopsin inputs to the human pupil light reflex
TL;DR: It is inferred that outer retina summation is important for rapidly controlling pupil diameter in response to short timescale fluctuations in illumination and may occur at two potential sites, one that is presynaptic to extrinsic photoreceptor input to ipR GCs, or another within the pupil control pathway if ipRGCs have differential temporal tuning to extrINSic and intrinsic signalling.
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The Effects of Short-Term Light Adaptation on the Human Post-Illumination Pupil Response
TL;DR: Light and dark adaptation have opposite effects on the pupil metrics, which should be normalized to baseline to minimize significant correlations between constriction and PIPR amplitudes.
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Melanopsin-mediated post-illumination pupil response in the peripheral retina.
TL;DR: In this paper, the relationship between stimulus area and photon flux with stimuli constant for CFD, irradiance, or area at central (0 deg) and peripheral (20 deg) eccentricities with high and low melanopsin excitation was determined.
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The accuracy of artificial and natural light measurements by actigraphs
TL;DR: Both actigraphs provide good performance in monitoring the temporal patterning of light, whereas the absolute illuminance values require correction to accurately evaluate the effects of light intensity on human health and behaviours.