Re: FOCUS EEG Amplifier Review

[Guest guest]

lizmargoshes wrote: Is it right to assume that by "amp" Jill mean the "sensor"? (smallblack object you plug into the machine and into which the threeelectrodes are then plugged)[is a sensor an amp?]I am also assuming that you want to plug that sensor into the "Dhole" in the Infiniti rather than leaving the "D hole" empty becauseif you do the latter you'll get that awful message about how thesoftware is not "detecting" the correct number of sensors. (??)(as opposed to

Mark's suggestion of leaving it empty)Liz> > > It's not the electrodes which are left on the desk � it's justthe amp> > with no electrodes attached. If the amp is quiet, I don't get any> > environmental signal.> > .> > ,___> >> -- > Van Deusen> pvdtlc@...> http://www.brain-trainer.com> 305/433-3160> The Learning Curve, Inc.>

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[Guest guest]

Liz,

     The amp is a relatively triangular

shaped item which is attached to the encoder box by a cable coming from the

narrow end.  The wide end has a female connector into which you plug another cable

which splits into 3 female ports – a yellow, blue & black.  You’re

absolutely right – if you leave the D channel empty, you get an error

message.

Jill

From:

braintrainer [mailto:braintrainer ] On Behalf Of lizmargoshes

Sent: Friday, March 28, 2008 12:35

PM

To: braintrainer

Subject: Re: FOCUS

EEG Amplifier Review

Is it right to assume that by " amp " Jill mean the " sensor " ?

(small

black object you plug into the machine and into which the three

electrodes are then plugged)

[is a sensor an amp?]

I am also assuming that you want to plug that sensor into the " D

hole " in the Infiniti rather than leaving the " D hole " empty

because

if you do the latter you'll get that awful message about how the

software is not " detecting " the correct number of sensors. (??)

(as opposed to Mark's suggestion of leaving it empty)

Liz

>

> > It's not the electrodes which are left on the desk � it's just

the amp

> > with no electrodes attached. If the amp is quiet, I don't get any

> > environmental signal.

> > .

> > ,___

> >

> --

> Van Deusen

> pvdtlc@...

> http://www.brain-trainer.com

> 305/433-3160

> The Learning Curve, Inc.

>

[Guest guest]

Jill,

Yes.

" EEG-Zâ„¢ Sensor

A pre-amplified electroencephalograph sensor with built in impedance

sensing. "

(because isn't the encoder box itself an amp?)

Liz

> >

> > > It's not the electrodes which are left on the desk � it's just

> the amp

> > > with no electrodes attached. If the amp is quiet, I don't get any

> > > environmental signal.

> > > .

> > > ,___

> > >

> > --

> > Van Deusen

> > pvdtlc@

> > http://www.brain- <http://www.brain-trainer.com> trainer.com

> > 305/433-3160

> > The Learning Curve, Inc.

> >

>

[Guest guest]

I came into the thread late. I thought you were talking about TLC Infinity Suites and using one channel screens.

Mark

Re: FOCUS EEG Amplifier Review

I'm sorry, Mark, I don't understand.The screens I'm looking at say C+D. They are for inhibiting a widefrequency band. I wasn't able to find Channel C-only screens and I amtrying to follow the protocol I mentioned (the "wide band inhibitsquash), that Pete gave me during the assessment workshop.Liz> > > > > > > > > I suggest you use the Thought Technology website. They> explicitly> > > > > state that the 2048 s/s A & B channels may be used with EEG.Just> > > to be sure,> > > > > I emailed to confirm. This is the response:> > > > >> > > > > You can definitely use the first 2 channels. The onlyconcern is> > > that the> > > > > higher sampling rate may produce slightly differentresults than> > > the other> > > > > slower channels, so using one of them for coherence or phase> > > comparisons to> > > > > the slower channels might not be advisable; however, this is> more> > > > > theoretical than tested.> > > > >> > > > > Hal> > > > >> > > > > I am astounded that Bio-Medical's web site is that incorrect.> > > > >> > > > > I do not understand why you say they (A & "should not be used> > for NF> > > > > training" Its pretty hard to train high Beta with a 256 sample> > > rate. Even> > > > > my old Lexicor had a 512 sample rate available. And you> > yourself are> > > > > arguing for a higher (127 HZ) bandwidth. So what about a clean> > > 0-512 Hz.?> > > > > .> > > > >> > > > >> > > > > > > > > > > > -- > > > > Van Deusen> > > > pvdtlc@> > > > http://www.brain-trainer.com> > > > 305/433-3160> > > > The Learning Curve, Inc.> > > >> > >> >>

[Guest guest]

Liz,

            The ThoughtTech website describes

the EEG-Z as “A pre-amplified electroencephalograph sensor with built in

impedance sensing.”   In my BF/NF course, I was taught to call it an “amp”. 

I guess we’re both right.

Jill

From: braintrainer

[mailto:braintrainer ] On

Behalf Of lizmargoshes

Sent: Friday, March 28, 2008 2:39

PM

To: braintrainer

Subject: Re: FOCUS

EEG Amplifier Review

Jill,

Yes.

" EEG-Zâ„¢ Sensor

A pre-amplified electroencephalograph sensor with built in impedance

sensing. "

(because isn't the encoder box itself an amp?)

Liz

> >

> > > It's not the electrodes which are left on the desk � it's just

> the amp

> > > with no electrodes attached. If the amp is quiet, I don't get any

> > > environmental signal.

> > > .

> > > ,___

> > >

> > --

> > Van Deusen

> > pvdtlc@

> > http://www.brain- <http://www.brain-trainer.com>

trainer.com

> > 305/433-3160

> > The Learning Curve, Inc.

> >

>

[Guest guest]

I guess I'm a bit of a delinquant; I still go past the message (attached)

and it works just fine. I start the session with only one connection. If you

disconnect one during the session, you are in trouble, it will not let you

go.

Francois

>

>Reply-To: braintrainer

>To: <braintrainer >

>Subject: RE: Re: FOCUS EEG Amplifier Review

>Date: Fri, 28 Mar 2008 14:00:32 -0600

>

>Liz,

>

> The amp is a relatively triangular shaped item which is attached to

>the

>encoder box by a cable coming from the narrow end. The wide end has a

>female connector into which you plug another cable which splits into 3

>female ports – a yellow, blue & black. You’re absolutely right – if you

>leave the D channel empty, you get an error message.

>

>Jill

>

>

>

> _____

>

>From: braintrainer [mailto:braintrainer ] On

>Behalf Of lizmargoshes

>Sent: Friday, March 28, 2008 12:35 PM

>To: braintrainer

>Subject: Re: FOCUS EEG Amplifier Review

>

>

>

>

>Is it right to assume that by " amp " Jill mean the " sensor " ? (small

>black object you plug into the machine and into which the three

>electrodes are then plugged)

>

>[is a sensor an amp?]

>

>I am also assuming that you want to plug that sensor into the " D

>hole " in the Infiniti rather than leaving the " D hole " empty because

>if you do the latter you'll get that awful message about how the

>software is not " detecting " the correct number of sensors. (??)

>

>(as opposed to Mark's suggestion of leaving it empty)

>

>Liz

>

>

> >

> > > It's not the electrodes which are left on the desk � it's just

>the amp

> > > with no electrodes attached. If the amp is quiet, I don't get any

> > > environmental signal.

> > > .

> > > ,___

> > >

> > --

> > Van Deusen

> > pvdtlc@...

> > http://www.brain- <http://www.brain-trainer.com> trainer.com

> > 305/433-3160

> > The Learning Curve, Inc.

> >

>

>

>

[Guest guest]

It may help to add that when this screen comes up just press OK and you can run the session with one channel connected.

Mark

Re: FOCUS EEG Amplifier Review>>>>>Is it right to assume that by "amp" Jill mean the "sensor"? (small>black object you plug into the machine and into which the three>electrodes are then plugged)>>[is a sensor an amp?]>>I am also assuming that you want to plug that sensor into the "D>hole" in the Infiniti rather than leaving the "D hole" empty because>if you do the latter you'll get that awful message about how the>software is not "detecting" the correct number of sensors. (??)>>(as opposed to Mark's suggestion of leaving it empty)>>Liz>>> >> > > It's not the electrodes which are left on the desk � it's just>the amp> > > with no electrodes attached. If the amp is quiet, I don't get any> > > environmental signal.> > > .> > > ,___> > >> > --> > Van Deusen> > pvdtlc@...> > http://www.brain- <http://www.brain-trainer.com> trainer.com> > 305/433-3160> > The Learning Curve, Inc.> >>>>

[Guest guest]

If it helps you can disconnect while in "pause" but indeed you must have it all plugged back in before you hit play again or you are in trouble. -NitaMark Baddeley wrote: It may help to add that when this screen comes up just press OK and you can run the session with one channel connected. Mark Re: FOCUS EEG Amplifier Review>>>>>Is it right to assume that by "amp" Jill mean the "sensor"? (small>black object you plug into the machine and into which the three>electrodes are then plugged)>>[is a sensor an amp?]>>I am also assuming that you want to plug that sensor into the "D>hole" in the Infiniti rather than leaving the "D hole" empty because>if you do the latter you'll get that awful message about how the>software is not "detecting" the correct number of sensors. (??)>>(as opposed to Mark's suggestion of leaving it empty)>>Liz>>---

In braintrainer@ <mailto:braintrainer%40yahoogroups.com>>yahoogroups.com, " Van Deusen" >wrote:> >> > Jill,> >> > Got it.> >> > Pete> >> > On Fri, Mar 28, 2008 at 12:18 PM, Glacier Biofeedback > > wrote:> >> > > It's not the electrodes which are left on the desk � it's just>the amp> > > with no electrodes attached. If the amp is quiet, I don't get any> > > environmental signal.> > > .> > > ,___> > >> > --> > Van Deusen> > pvdtlc@...> > http://www.brain- <http://www.brain-trainer.com> trainer.com> > 305/433-3160> > The Learning Curve, Inc.>

>>>>

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