Transcranial photobiomodulation improves prefrontal oxygenation and impulse control in adults with ADHD: a randomized controlled trial

What the authors concluded

Behavioral results from the first stage showed that, within the ADHD group, participants receiving active tPBM exhibited a 51% improvement in correct rejections on the CPT compared to sham, reaching levels comparable to non-ADHD participants (p = 0.017, large effect size of Cohen's d = 0.93)." "These findings suggest that enhancing prefrontal oxygenation via tPBM may strengthen neural networks s

Devices that emit this wavelength

Matched on wavelength within 15nm, since LED bins vary by roughly that much and a tighter match would be false precision. Where we have an irradiance figure, the session length is the time needed to reach this study's dose of 60 J/cm² at that intensity.

Matching a wavelength is not the same as reproducing a trial. Session times assume the device's published irradiance is accurate at the distance it was measured, which on brand-claim figures is often optimistic. Where a device publishes both a peak and an average we use the average, and where it publishes a falloff curve we use the lowest figure, so these times run long rather than short. Clinical protocols also control for spot size, contact and skin type in ways a home device cannot.