Focus Music

16 Hz beta-range amplitude modulation

25:00

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Why 16 Hz?

The paper (Woods et al. 2024, Communications Biology) parametrically tested AM rates of 8 Hz, 16 Hz, and 32 Hz at low, medium, and high depth.

Best result: 16 Hz at medium depth (F(1,80) = 4.03, p = 0.048). The benefit grew with self-reported ADHD symptoms (ASRS) — high-ASRS listeners improved most under 16 Hz.

EEG showed stimulus–brain phase-locking at 16 Hz that strengthened over the session only for AM+Music, not control music. Beta-band (14–25 Hz) activity is implicated in attentional control.

120 BPM = 2 Hz beat; 8/16/32 Hz are 16th/32nd/64th-note rates.

Read the paper →

Set timer and press Start

Find Your Best AM Rate

This is a 3-minute attention test, identical in structure to the one used in the paper (SART). You'll see digits 1–9 appearing one at a time.

Tap (or press Space) for every digit — except 3. When you see 3, do nothing.

The audio behind the test will run at 8 Hz, 16 Hz, and 32 Hz in a randomized order. We'll tell you which rate gave you the best score.

Use headphones if you can. Find a quiet moment — this only works if you're actually trying.

ADHD Self-Screen (ASRS-6)

A 6-question screener from the WHO. Not a diagnosis — for guidance only. Your answers stay on this device.

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