Re: Digest Number 2747

[Guest guest]

,

Thanks for your response. I need to correct part of my question and elucidate a bit. In my case, recent EC beta amplitudes at F4 and P4 were 6.5 and 10.4 uV respectively. EC beta percentages at F4 and P4 were 18.8 and 16.6 respectively for the same assessment. I typically have higher amplitudes in all frequency ranges parietally versus frontally.

I do still have anxiety, a driven personality and some terminal insomnia. However, after down-training during more than 200 sessions, P4 beta and high beta amplitudes are apparently as low as they'll go (it's been months since I've made any progress). In the past, down-training fast wave activity at P4 felt like the silver bullet. More recently, it left me feeling depressed so I'm no longer doing it.

I'm currently downtraining excess fast wave activity at Fp2 but am concerned that I may exacerbate any front to rear fast wave imbalance problems that I may have.

Digest Number 2747

BrainTrainer

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Re: TLC Assessment Question From: Van Deusen

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Re: TLC Assessment Question

Posted by: " Van Deusen" pvdtlc@... pe1746

Sun May 4, 2008 1:10 am (PDT)

,If percents show that there is more beta in back than in front, andamplitudes in beta do not show it, how could that be? The answer is usuallythat ALL the amplitudes for all frequencies are greater in the front than inthe back. In that case, the percent, which shows us the relative importanceof beta in back vs. in front, is the important number. However, it's alsopossible that the general amplitude values are roughly equivalent front andback, but one particular frequency (not beta) is strongly different. Forexample, it the alpha values are much higher in front than in back--notnormally something we'd like to see--then that will skew the percents,because the alpha eats up a larger chunk of percent (which can't exceed100), leaving less for beta. In that case, the apparent beta reversal inthe back would really be caused by an alpha reversal in the front.So there are

really two answers to your question: first, look at both; ifboth tell the same story, that's pretty easy. If they tell differentstories, then you must look at the data to figure out where the discrepancyis coming from. Second, look at the client. A true front/back betareversal should result in some pretty specific symptoms (anxiety, more"driven" personality, terminal insomnia, etc.) If these are present,regardless of whether one or both the indicators say beta reversal, I wouldtest training it.PeteOn Sat, May 3, 2008 at 2:06 PM, Newby <pjmnbresnan (DOT) net> wrote:> In interpreting anterior/posterior beta reversal, do you go strictly by> percent or is amplitude also an important consideration? Put a different> way, if the anterior/posterior beta amplitude ratio is

considerably less> than one but the corollary percent ratio is over one, what is your> conclusion?>-- Van Deusenpvdtlcgmail (DOT) comhttp://www.brain- trainer.com305/433-3160The Learning Curve, Inc.

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