3 ms·
you just have a set of participents just try to sleep without it and compare. I don't think there is a standard "placebo" for a sound.
by m3kw9 2y ago
you just have a set of participents just try to sleep without it and compare. I don't think there is a standard "placebo" for a sound.
- Majromax 2y agoThe point of the experiment isn't the sound itself, however, it's carefully timing the sounds to the allegedly correct part of the alpha brainwave cycle. That's why the participants were wearing EEG headbands for the study. By having a sham treatment with random sound timing, you capture the baseline effect of the sound in both the experiment and control, leaving the timing as the experimental variable.