I am looking for a new way of extracting EEG signals.

There is significant research being done on the brain, with the United States in 2013 launching "The Brain Initiative" with over 300 million dollars becoming available for researchers.

Lots of research is currently underway;
Reconstructing Speech from Human Auditory Cortex (http://journals.plos.org/plosbiology...l.pbio.1001251)
Prosthetic Eye (http://www.extremetech.com/extreme/1...-of-your-brain)
Decoding Your Inner Voice (https://www.newscientist.com/article...ur-inner-voice)

The majority of the research being done requires invasive procedures which are risky, time consuming, and prone to health risk. Most times as well, invasive procedures are only performed while the individual is already in a health risk situation that requires operation.

Commonly used methods impose mobility restrictions and can be expensive to use (EEG, FMRI, MEG). Considering that biomass is non-linear, and thus demodulation can occur, I am exploring the possibility of extracting these signals using RF signals, or high-gain frequency specific antennas.

General understanding of the brain is such that it operates and processes 'data' across many differing and specific frequencies. For instance, a team of scientists presented spoken words to 15 people with electrodes implanted on the surface of the superior and middle temporal gyri (the area of the brain near the ear that is involved in the processing of sound). They noticed that one spot of neurons might only care about a frequency range of 1,000Hz (and not about anything else), while another at 5,000Hz. The team was also able to correlate many aspects of speech to this neural activity happening at the same time, and used an algorithm to interpret the neural activity to create a spectrogram. Using these spectrograms, they used a program to convert the information into audible speech. (https://www.newscientist.com/article...rom-brainwaves)

As well, the different organs also operate at specific frequencies, making me wonder as to if it would be possible to use the non-linear properties of biomass to extract biological signals? Or, could highly trained antenna be used to detect these low powered signals?

I would be very interested in any responses and Thank You for your time and input!