Figure 2 | Scientific Reports

Figure 2

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

Figure 2

The Elemind Neuromodulation device (ENMod). (A) The primary UI of the smartphone app used to control the device. Users were given information about electrode contact using an eyeblink test and real-time signal quality of each frontal electrode. (B) Back view showing the left over-the-ear reference electrode (L Ref), recording electrodes Fp1, Fpz, and Fp2, ground electrode “G”, and the bone conduction driver. (C) Front 3/4 view of the detachable processor unit attached to the fabric headband. Left over-the-ear reference electrode shown.

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