5 ms·

sigh Fine, here are more articles. If you don't want to believe in peer-reviewed academic literature, I'm not sure why I'm bothering. Statistically significa

sigh Fine, here are more articles. If you don't want to believe in peer-reviewed academic literature, I'm not sure why I'm bothering. Statistically significant results can be obtained with few participants. Behold the power of math. http://www.ncbi.nlm.nih.gov/pubmed/23926261 http://www.ncbi.nlm.nih.gov/pubmed/23926261 Nocturnal light exposure impairs affective responses in a wavelength-dependent manner. >Our results demonstrate that exposure to LAN influences behavior and neuronal plasticity and that this effect is likely mediated by ipRGCs. Modern sources of LAN that contain blue wavelengths may be particularly disruptive to the circadian system, potentially contributing to altered mood regulation. http://www.ncbi.nlm.nih.gov/pubmed/23358248 http://www.ncbi.nlm.nih.gov/pubmed/23358248 Out of the lab and into the bathroom: evening short-term exposure to conventional light suppresses melatonin and increases alertness perception. >Subjective alertness was significantly increased after exposure to three of the lighting conditions which included blue spectral components in their spectra. Evening exposure to conventional lamps in an everyday setting influences melatonin excretion and alertness perception within 30 min. http://www.ncbi.nlm.nih.gov/pubmed/21298068 http://www.ncbi.nlm.nih.gov/pubmed/21298068 Non-visual effects of light on melatonin, alertness and cognitive performance: can blue-enriched light keep us alert? Exposure to light at 6500K induced greater melatonin suppression, together with enhanced subjective alertness, well-being and visual comfort. With respect to cognitive performance, light at 6500K led to significantly faster reaction times in tasks associated with sustained attention (Psychomotor Vigilance and GO/NOGO Task), but not in tasks associated with executive function (Paced Visual Serial Addition Task). [...] Our findings suggest that the sensitivity of the human alerting and cognitive response to polychromatic light at levels as low as 40 lux, is blue-shifted relative to the three-cone visual photopic system. Thus, the selection of commercially available compact fluorescent lights with different colour temperatures significantly impacts on circadian physiology and cognitive performance at home and in the workplace.

MAGZine 13y ago
good digging. upboats! i'm impressed with someone's ability to ask for someone else to do research, and then be snooty when someone finds it for them. I thought that the effects of blue light on circadian rhythms was clear-cut, popular knowledge.
- diminoten 13y ago
  http://justgetflux.com/research.html http://justgetflux.com/research.html It's on their website. No one did any "research" except the people who made F.lux.
diminoten 13y ago
This trickery may work on Reddit (I know you're from Reddit because you use carets to denote quotations), but allow me to repeat myself: Why hasn't anyone done a study on specifically what f.lux attempts to do? Sure, light at night causes people problems sleeping, but does f.lux actually make a difference? Can we quantify that difference in a way that controls for the fanboy (formerly known as placebo) effect?
- DanBC 13y ago
  > (I know you're from Reddit because you use carets to denote quotations) What? People have been doing that for very many years. Here's TBL doing it in 1991 (https://groups.google.com/forum/#!msg/alt.hypertext/eCTkkOoWTAY/bJGhZyooXzkJ https://groups.google.com/forum/#!msg/alt.hypertext/eCTkkOoW...)
  - diminoten 13y ago
    We don't disagree.
- polyfractal 13y ago
  Haha, what? That is the most bizarre insult? argument? that I've seen in a while. People use greater-than characters all the time for quotations. It's been used in email forever. But bonus points for trying to be edgy I guess. To your question: All the studies are basically examining the principle that f.lux operates on. Shift colors away from blue and you can limit the decrease in melatonin production. I don't understand your question? If you mean, "why has no one done a study on f.lux itself?", then I'm assuming no one has done a study on f.lux per se because (I'm just guessing here) no serious academic researcher really gives two shits about a piece of software on the internet. However, that doesn't mean their research cannot be applied. F.lux is applied science, working on a fairly solid base of academic research. Real science with, yunno, quantifiable and statistically significant results. It isn't "fanboyism" or "science"...it is peer-reviewed literature. The articles I linked specifically talk about how spectral blue light decreases melatonin production (a hormone directly related to how sleepy you feel at night) and a corresponding increase in alertness. Doing a little extrapolation, if you decrease the amount of blue light that you are exposed to in the evening you decrease the impact on melatonin production and increased alertness. So sure, I doubt anyone has stuck a person in front of f.lux and measured salivatory melatonin levels...but they have done the equivalent with blue and red lights. It isn't reaching to say that f.lux is doing exactly the same thing.

MAGZine 13y ago

good digging. upboats! i'm impressed with someone's ability to ask for someone else to do research, and then be snooty when someone finds it for them. I thought that the effects of blue light on circadian rhythms was clear-cut, popular knowledge.

diminoten 13y ago
http://justgetflux.com/research.html http://justgetflux.com/research.html It's on their website. No one did any "research" except the people who made F.lux.

diminoten 13y ago

This trickery may work on Reddit (I know you're from Reddit because you use carets to denote quotations), but allow me to repeat myself: Why hasn't anyone done a study on specifically what f.lux attempts to do? Sure, light at night causes people problems sleeping, but does f.lux actually make a difference? Can we quantify that difference in a way that controls for the fanboy (formerly known as placebo) effect?

DanBC 13y ago
> (I know you're from Reddit because you use carets to denote quotations) What? People have been doing that for very many years. Here's TBL doing it in 1991 (https://groups.google.com/forum/#!msg/alt.hypertext/eCTkkOoWTAY/bJGhZyooXzkJ https://groups.google.com/forum/#!msg/alt.hypertext/eCTkkOoW...)
- diminoten 13y ago
  We don't disagree.
polyfractal 13y ago
Haha, what? That is the most bizarre insult? argument? that I've seen in a while. People use greater-than characters all the time for quotations. It's been used in email forever. But bonus points for trying to be edgy I guess. To your question: All the studies are basically examining the principle that f.lux operates on. Shift colors away from blue and you can limit the decrease in melatonin production. I don't understand your question? If you mean, "why has no one done a study on f.lux itself?", then I'm assuming no one has done a study on f.lux per se because (I'm just guessing here) no serious academic researcher really gives two shits about a piece of software on the internet. However, that doesn't mean their research cannot be applied. F.lux is applied science, working on a fairly solid base of academic research. Real science with, yunno, quantifiable and statistically significant results. It isn't "fanboyism" or "science"...it is peer-reviewed literature. The articles I linked specifically talk about how spectral blue light decreases melatonin production (a hormone directly related to how sleepy you feel at night) and a corresponding increase in alertness. Doing a little extrapolation, if you decrease the amount of blue light that you are exposed to in the evening you decrease the impact on melatonin production and increased alertness. So sure, I doubt anyone has stuck a person in front of f.lux and measured salivatory melatonin levels...but they have done the equivalent with blue and red lights. It isn't reaching to say that f.lux is doing exactly the same thing.