I think this might be helpful, or not:
http://en.wikipedia.org/wiki/Repressed_memory
I was trained that people often disassociate during traumatic events, and that they may also suppress memories of past traumas. This is not quite the same thing as global amnesia.
More about disassociation:
http://en.wikipedia.org/wiki/Dissociation_(psychology)
I hope this is helpful.
My former Ex SO friend told me that people crave auditing on the e-meter...will go to great lengths to continue it, and that they seem to go into a kind of withdrawl when suddenly denied it, just like an addiction to a drug. Maybe it's just a psychological dependance and not a physical one...either way, dependance seems to be there for those people who "crave" it!
Once he did it for hours and when he stopped, his blood pressure was sky high, higher than ever before in his life. He felt that if he hadn't stopped, he might have had a stroke. Here's the thing...he didn't want to stop, had to force himself to stop.
I have had personal experience with a TENS unit, a prescription is needed to get one...it's not a stretch to think that the electric current from the e-meter might have similar effects.
I stopped using a TENS unit because I was concerned about cellular damage over time, and overgrowth of cells. I would not use an e-meter during counseling (or meditation) if you paid me to do it.
I'm in Arnie's camp on this one. I think the process is harmful. If using a TENS unit can and does produce "neuromodulation", than why can't using and abusing an e-meter do so as well??? I don't see much difference.
Here's way more than you want to know about the effects of TENS:
"The currently proposed mechanisms by which TENS produces neuromodulation include the following:
Presynaptic inhibition in the dorsal horn of the spinal cord
Endogenous pain control (via endorphins, enkephalins, and dynorphins)
Direct inhibition of an abnormally excited nerve
Restoration of afferent input
The results of laboratory studies suggest that electrical stimulation delivered by a TENS unit reduces pain through nociceptive inhibition at the presynaptic level in the dorsal horn, thus limiting its central transmission. The electrical stimuli on the skin preferentially activate low-threshold, myelinated nerve fibers. The afferent input from these fibers inhibits propagation of nociception carried in the small, unmyelinated C fibers by blocking transmission along these fibers to the target or T cells located in the substantia gelatinosa (laminae 2 and 3) of the dorsal horn.
Studies show marked increases in beta endorphin and met-enkephalin with low-frequency TENS, with demonstrated reversal of the antinociceptive effects by naloxone. These effects have been postulated to be mediated through micro-opioid receptors. Research indicates, however, that high-frequency TENS analgesia is not reversed by naloxone, implicating a naloxone-resistant, dynorphin-binding receptor. A sample of cerebral spinal fluid in those subjects demonstrated increased levels of dynorphin A.
The mechanism of the analgesia produced by TENS is explained by the gate-control theory proposed by Melzack and Wall in 1965. The gate usually is closed, inhibiting constant nociceptive transmission via C fibers from the periphery to the T cell. When painful peripheral stimulation occurs, however, the information carried by C fibers reaches the T cells and opens the gate, allowing pain transmission centrally to the thalamus and cortex, where it is interpreted as pain. The gate-control theory postulates a mechanism by which the gate is closed again, preventing further central transmission of the nociceptive information to the cortex. The proposed mechanism for closing the gate is inhibition of the C-fiber nociception by impulses in activated myelinated fibers."
From:
http://emedicine.medscape.com/article/325107-overview
And
"Transcutaneous electrical nerve stimulation (TENS) is the use of electric current produced by a device to stimulate the nerves for therapeutic purposes. TENS by definition covers the complete range of transcutaneously applied currents used for nerve excitation although the term is often used with a more restrictive intent, namely to describe the kind of pulses produced by portable stimulators used to treat pain.
The unit is usually connected to the skin using two or more electrodes. A typical battery-operated TENS unit is able to modulate pulse width, frequency and intensity. Generally TENS is applied at high frequency (>50 Hz) with an intensity below motor contraction (sensory intensity) or low frequency (<10 Hz) with an intensity that produces motor contraction. The benefit of TENS for pain is controversial."
From:
http://en.wikipedia.org/wiki/Transcutaneous_electrical_nerve_stimulation