Blood-oxygen-level-dependent (BOLD) functional magnetic resonance imaging (fMRI) during transcranial near-infrared laser irradiation

When turning your face to the sun during sunset or sunrise, red and near infrared light may penetrate your forehead and reach the brain. We Japanese and our ancestors worship the sun during sunrise or sunset. We think such religious performance may have some scientific basis for humans. Positive behavioral improvement has been observed following transcranial near-infrared light therapy in humans with chronic traumatic brain injury [1] and depression [2] [3] [4]. We have demonstrated focal increase of cerebral blood flow (CBF) during and after near infrared laser or light irradiation in mice [5] and in human beings [6].
Source: BRAIN STIMULATION: Basic, Translational, and Clinical Research in Neuromodulation - Category: Neurology Authors: Source Type: research