Analyzing Graph

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currahee
Posts: 1
Joined: Mon Jun 13, 2022 12:34 pm

Analyzing Graph

Post by currahee »

Hi,
I'm on a simple experiment using this app, and I got several questions while analyzing data.

(1) What is the Y axis of the CSV recorded graph?
(2) Is it possible to know the exact data of frequency(Hz) change of each brain wave using the app?
(3) I also want to know what the number such as 'Delta 88dB' in the absolute graph means.

Thank you for developing an amazing app!
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James
Site Admin
Posts: 1106
Joined: Wed Jan 02, 2013 9:06 pm

Re: Analyzing Graph

Post by James »

#1 - The Y axis depends on which chart you're talking about, but assuming you're talking about the default one showing brainwaves, then the answer would be Power Spectral Density (bels/dB).
#2 - The frequency of brainwaves does not change, it's the power level of the range that changes. See the help: https://mind-monitor.com/Technical_Manu ... h_absolute for the ranges.
#3 - That means the Power Spectral Density of your Delta waves is 88 decibels. :-) .. but that also is highly unlikely unless you are in deep sleep, so it probably means you have poor sensor contact, sorry!
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