Search results
Mar 26, 2021 · Phase shifting, melatonin suppression, and alertness all demonstrate a characteristic light intensity-dependent response, typically measured for a fixed exposure duration. Dose-response data may be fit to a parametric model and provide a dynamic range of responsiveness, including irradiances within the boundaries of threshold and maximum response.
- Download PDF
Some domains we cover are relatively under-explored in terms...
- Download PDF
Rhythmic expression of clock genes. Clock gene disruption is another core contributor to the effects of light at night. Exposure to light at night alters expression of clock genes and interacts with existing circadian gene variants that may predispose to mood disorders.
Aug 5, 2015 · This paper analyzes the light from a psychological point of view, investigating the relationships between light-based emotions and behaviours, and the psy-chophysical responses to lit...
This paper analyzes the light from a psychological point of view, investigating the relationships between light-based emotions and behaviours, and the psy-chophysical responses to lit environment by the perceivers in different experiential contexts.
- Distinct Pathways For Light’s Effect on Learning and Mood
- The Perihabenular Region as Part of The Light-Mood Pathway
- Reference
When the researchers looked at learning and cognition in the mice, they found that both the unaltered mice and the genetically altered mice showed normal behaviors in the normal light condition and abnormal behaviors in the abnormal light condition. These findings suggest that the pathways that lead from ipRGCs to the SCN are sufficient for light t...
The researchers then worked to identify the brain pathways outside of the SCN that are responsible for the effect of light on mood. They focused on a region of dorsal thalamus—an area which was previously termed the perihabenular region (PHb). This area has been shown to receive information from the retina and to contain a circadian clock. The rese...
Fernandez et al., Light Affects Mood and Learning through Distinct Retina-Brain Pathways, Cell (2018), https://doi.org/10.1016/j.cell.2018.08.004
May 1, 2006 · Bright light can influence human psychophysiology instantaneously by inducing endocrine (suppression of melatonin, increasing cortisol levels), other physiological changes (enhancement of core body temperature), and psychological changes (reduction of sleepiness, increase of alertness).
People also ask
How does light affect human psychophysiology?
What is light in psychology?
Does bright light affect psychological variables?
What determines the human experience of light?
Are light-altering psychological states possible?
Aug 1, 2023 · Scientific evidence published over the last four decades has shown that retinal light exposure influences our physiology, behavior, and emotion. More specifically, it modulates human sleep,...
