1027 Daily Morning Blue Light Exposure Enhances Executive Functioning in Individuals with Mild Traumatic Brain Injury

Abstract

Mild traumatic brain injury (mTBI) often leads to per- sistent disruptions in mood, sleep, and cognition, but no reliable and effective treatments for post-concussive symptoms have been devel- oped. Notably, sleep and circadian rhythm problems are particularly common following mTBI and may affect recovery from the injury. Because the circadian system is strongly regulated by light, we hypoth- esized that daily morning exposure to blue-wavelength light would improve circadian entrainment, sleep, and executive functioning.