Table 4 Heat map table showing the comparative number of responses (out of 5 possible) to a survey question asking “How would you rate the quality of your sleep?” Responses were collected each morning following use of the Elemind ENMod headband.

From: A randomized controlled trial of alpha phase-locked auditory stimulation to treat symptoms of sleep onset insomnia

  1. Color intensity reflects the relative proportion of collected responses across rows. Total number of responses = 131.
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