Valkee, the Finnish maker of the recently released light headset for seasonal affective disorder, has announced positive results of a study that light shone on the brain using their music player-like device has on reaction time.

Verve Research, Finland was hired to conduct the trial on members of the Finnish national hockey league.  What they discovered was that these hockey players, already professionals in a very fast sport, improved their reaction times by around 20%, compared to the placebo group, after wearing the Valkee device for 12 minutes each morning for three weeks.