pROSHI uses a light signal into the optic nerve that is supposed to reprogram the brain.

LENS claims to use electro-magnetic waves at a power below that which is measurable to create an electric field change in the brain cells.

Both claim to be non-invasive yet they both also claim to cause an effect on the brain without the active participation of the patient. This is invasive. The ROSHI does it with non-contact light so it can be sold without FDA approval as long as it does not make medical claims. The LENS states that it uses the physical contact of the electrodes to stimulate the brain so the FDA says it requires study documentation.

Both developers and producers/sellers of the equipment and training offer very little information about how their equipment works. The FDA is concerned about the LENS system since it claims to send this electro-magnetic signal back to the brain by way of the electrodes used to measure the brain's function.

*edit*

Please keep one point in mind. neither of these systems has been subjected to serious double blind scientific study. There are many 'alternative' systems in use today that claim great results. What these systems do not have is the scientific methodology behind their claims. The most important study issue is the placebo factor. If the system does not perform better than the placebo tested, then it can be rationally thought that the improvements are a result of the placebo effect.

*edit* Neurofeedback is a subset of QEEG. QEEG can be used without neurofeedback. QEEG based neurofeedback needs the baseline QEEG before establishing a neurofeedback therapy plan. Not all neurofeedback is combined with QEEG. Some neurofeedback is based on a very limited amount (channels) of EEG/QEEG waveforms. Other neurofeedback does not even utilize QEEG/EEG waveforms aquisition.

A normal EEG is based on 14 channels. QEEG usually uses 18 to 24 channels and sometimes up to 64 channels. 18 to 24 is usually the limit of the equipment used in neurofeedback. More channels are used just for research and/or diagnostic efforts.

<QEEG is only a type of brain scan that doesn't administer any feedback at all. As you know, you simply put on the cap and it takes a brainwave scan of your head. By the way, not sure if you are aware of this or not, but the QEEG is a bit controversial and is not without its limitations>

The controversy about QEEG is based on one article written in 1997 by a nay-sayer neurologist and published in the American Academy of Neurology and American Clinical Neurophysiology Society's (AAN/ACNS) paper "Assessment of Digital EEG, Quantitative EEG, and EEG Brain Mapping," edited by Dr. Marc Nuwer.

This nay-sayer article has been soundly refuted by scientific method and by analyzing the data used to substantiate the negative position as not meeting scientific method standards.

There is a very good refutation of this negative article at http://neuro.psychiatryonline.org/cg.../full/11/3/401

The peer reviewed articles supporting QEEG and true QEEG based neurofeedback exceed 15,000 so far.

QEEG has also been under conflict with the FDA because practitioners were making medical claims without having the credentials to diagnose and treat. The Lexicor system was targeted by the FDA for this problem.

LENS and ROSHI/pROSHI are not QEEG based neurofeedback. They use very limited waveform information. That does not mean that there is never a positive result. Even a broken clock is right twice a day. Just the relaxation component of the two therapies can be very useful.

Arthroscopic knee surgery often finds no damage that is repairable but still effects great improvement. The reason is it causes the patient to slow down and focus on letting the knee heal.

The same can be true for many therapies including neurofeedback and biofeedback. If the patient is learning relaxation techniques during the therapy, they have accomplished a great part of the improvement. Placebo effect adds to the improvement and the therapy may add to the improvement.

I have gone through a number of phases of relaxation depths over the years. I have observed that many PCS/MTBI survivors have refused to accept the value of true relaxation as a lifestyle. They refuse to modify their environment and behavior thus keeping their stress levels at their historical levels.

Life is an activity for participants. If you do not choose to participate in your own recovery, recovery is harder to achieve.

If you choose to try any of these alternative therapies, just go into the therapy with your eyes open. Accept the costs and consequences associated with these therapies.

If you are strongly belief influenced, then you may be more successful. Some people are not receptive to hypnotherapy because of mental rigidity, others receive suggestion very easily. The same holds true for many alternative therapies.