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> Comparing the Amplitudes of Different Frequencies, Theta/Beta Ratio
tsguigna
post May 26, 2016, 10:00 PM
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Hello everyone! I am calculating the theta/beta ratio for individual subjects and then comparing them statistically. The issue I am having is statistically comparing amplitudes of different frequency bands. For example, in the theta category, I have a subject that had his frequency range of 2-9 Hz inhibited during neurofeedback. For another subject, his frequency range of 3-6 Hz was inhibited. I cannot compare the average amplitudes of these two subjects because the wider a frequency band is, the larger the amplitude. Basically, for the first subject, what would his/her amplitude be if I restricted the bandwidth from 2-9 Hz to 3-6 Hz? The amplitude for the 2-9 Hz range is 34.3, so how much would the amplitude decrease if I restricted that subject's frequency range to 3-6 Hz? Let me know if this issue is not clear and I will try to adjust my question. Thanks everybody!
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haohao
post May 27, 2016, 12:24 PM
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I think for different behaviours or situations, the neuro-reactions in frequency of your experiments are different. So it's hard to tell the change of the amplitudes, and maybe the value of the amplitude will increase in number.
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