Flicker with a matching binaural beat (Ávila 2026)

At 8 and 20 Hz, yes: the rhythmic response to the flicker was larger with the matching beat. At 40 Hz there was no clear rhythmic gain once background activity was separated out.

A plain-language summary from binaural's reading notes, edited by Jude Mc. Last updated 10 November 2026. Not medical advice.

The question: Does adding a binaural beat at the same rate make the brain follow a flickering light more strongly?

What it found

• At 8 Hz flicker produced a rhythmic response, and adding the binaural beat enhanced it.
• At 20 Hz synchronized stimulation enhanced both the rhythmic and the background components.
• At 40 Hz an apparent gamma increase was not a rhythmic enhancement once the signal was decomposed.
• A larger preprint (Frohlich 2023, over 80 people per condition) also reports strong entrainment to strobe paired with binaural beats versus sham.

Limits

• Single-author study; EEG measures only, no outcomes.
• The supporting large-sample study is a preprint.

Where this sits

More in the library on light, flicker and 40 hz. For the wider picture, read 40 Hz, gamma and the brain.

This is our plain-language reading of the paper. It is not medical advice, and one study rarely settles a question.