IES TM-18-18:2018 Edition

$12.35

Light and Human Health: An Overview of the Impact of Optical Radiation on Visual, Circadian, Neuroendocrine and Neurobehavioral Responses

Published By	Publication Date	Number of Pages
IES	2018-04-01	30

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Full Description

In brief, this Technical Memorandum describes the
retinal mechanisms involved when optical radiation
signals are converted into neural signals (a phenomena
called phototransduction) for vision and
for other body functions. Optical radiation reaching
the retina not only impacts on how humans see the
world, it also regulates physiology and behavior, both
directly and indirectly. This includes acute effects
such as suppressing pineal melatonin production,
elevating morning cortisol production, increasing
subjective alertness, enhancing psychomotor performance,
changing brain activation patterns to a more
alert state, elevating heart rate, increasing core body
temperature, activating pupil constriction, and even
stimulating circadian clock gene expression.