Guest guest Posted February 16, 2012 Report Share Posted February 16, 2012 https://secure.mvapmed.com/SearchResult.aspx?KeyWords=checktrode & Exact=True I like this Checktrode meter, which sells for $395. If the link doesn't work, go to MVAP Medical and search on the keyword Checktrode. Tamera Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 16, 2012 Report Share Posted February 16, 2012 Thanks...apparently I had a widely inaccurate idea about how much these things cost...ouch.Liz Margoshes, Ph.D.NY State Licensed PsychologistOn Feb 16, 2012, at 1:42 PM, "TD Siminow" <siminowdt@...> wrote: https://secure.mvapmed.com/SearchResult.aspx?KeyWords=checktrode & Exact=True I like this Checktrode meter, which sells for $395. If the link doesn't work, go to MVAP Medical and search on the keyword Checktrode. Tamera Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 16, 2012 Report Share Posted February 16, 2012 Thanks...apparently I had a widely inaccurate idea about how much these things cost...ouch.Liz Margoshes, Ph.D.NY State Licensed PsychologistOn Feb 16, 2012, at 1:42 PM, "TD Siminow" <siminowdt@...> wrote: https://secure.mvapmed.com/SearchResult.aspx?KeyWords=checktrode & Exact=True I like this Checktrode meter, which sells for $395. If the link doesn't work, go to MVAP Medical and search on the keyword Checktrode. Tamera Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 16, 2012 Report Share Posted February 16, 2012 ,We have never sold impedance meters. You should be able to see if you have a trainable signal or not with a quick look at the oscilloscope and power spectrum. With modern amplifiers, the old " standard " of below 10 kohms for training, below 5 for research is essentially meaningless. I learned long ago that lead placement is technique, technique, technique. Prep each spot lightly for 10 seconds, put a mound of paste over the electrode head and make sure it is in contact at least some of it with scalp, and impedances are consistently low. The real benefit of the impedance meter that I used in the past was that it measured offset between electrodes. There again, if you work with groups of electrodes that were purchased at the same time, same type and same material, it is super-rare to run into offset issues. We sell the Pendant on http://www.brain-trainer.com/equipment/eegequipment.html for EEG. Also sell the HEG. Also sell them in the packages.Pete -- Van Deusenpvdtlc@...http://www.brain-trainer.comUSA 678 224 5895BR 47 3346 6235 The Learning Curve, Inc. On Thu, Feb 16, 2012 at 2:19 PM, Margoshes <drmargoshes@...> wrote: Hi,I'm looking to buy a reliable but inexpensive impedance monitor to use with my pocket-neurobics pendants. I see that Pete no longer sells one on his site (and no longer sells the pendants?!). Does anyone have recommendations? I'd buy a used one if anyone has one to sell, as long as it actually works. Thanks. Liz -- Margoshes, Ph.D.New York State Licensed Psychologist Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 16, 2012 Report Share Posted February 16, 2012 Pete,I don't know why I thought you sold them. My signal, as usual, is strange, but only in one channel now, which is a 50% improvement , looking at it positively. Probably not an impedance issue I guess, then. It looks like huge spiky things. Will keep prepping and see what happens. Thanks. Oh I do find that with my ProComp which has auto impedance check, often the numbers are insanely high unless I physically push on the electrode head with my finger.Liz Margoshes, Ph.D.NY State Licensed PsychologistOn Feb 16, 2012, at 2:20 PM, pvdtlc <pvdtlc@...> wrote: ,We have never sold impedance meters. You should be able to see if you have a trainable signal or not with a quick look at the oscilloscope and power spectrum. With modern amplifiers, the old "standard" of below 10 kohms for training, below 5 for research is essentially meaningless. I learned long ago that lead placement is technique, technique, technique. Prep each spot lightly for 10 seconds, put a mound of paste over the electrode head and make sure it is in contact at least some of it with scalp, and impedances are consistently low. The real benefit of the impedance meter that I used in the past was that it measured offset between electrodes. There again, if you work with groups of electrodes that were purchased at the same time, same type and same material, it is super-rare to run into offset issues. We sell the Pendant on http://www.brain-trainer.com/equipment/eegequipment.html for EEG. Also sell the HEG. Also sell them in the packages.Pete -- Van Deusenpvdtlc@...http://www.brain-trainer.comUSA 678 224 5895BR 47 3346 6235 The Learning Curve, Inc. On Thu, Feb 16, 2012 at 2:19 PM, Margoshes <drmargoshes@...> wrote: Hi,I'm looking to buy a reliable but inexpensive impedance monitor to use with my pocket-neurobics pendants. I see that Pete no longer sells one on his site (and no longer sells the pendants?!). Does anyone have recommendations? I'd buy a used one if anyone has one to sell, as long as it actually works. Thanks. Liz -- Margoshes, Ph.D.New York State Licensed Psychologist Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.