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<div>I wanted to calculate the ratio of Theta/Beta in decibels for a couple of electrodes in AF3 AF4 and Cz</div>
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<div>I was able to get these in microvolts, but would like to convert them to decibels but am unsure what is the appropriate way to do so.</div>
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<div>For instance, should I convert it like:</div>
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<div> ratio1 = 10Log((Theta(AF3) + Theta(AF4) + Theta(Cz))/(Beta(AF3) + Beta(AF4) + Beta(Cz)))</div>
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<div>or</div>
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<div> ratio2 = 10Log(Theta(AF3)/Beta(AF3)) + 10Log(Theta(AF4)/Beta(AF4)) + 10Log(Theta(Cz)/Beta(Cz))</div>
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