Memory: There is not sufficient evidence to suggest that brainwave entrainment improves memory. However since cognitive function improves as a result of entrainment, short and/or long term memory may be improved by stimulation with certain frequencies. While lower frequencies may be beneficial for recalling certain memories, conscious processing of the memories generally requires sufficient beta.
Because of the way they are created, there may be a positive benefit from listening to binaural beats without considering the brainwave entrainment aspect, but I haven’t seen any research on that. I first discovered brainwave entrainment through binaural beats about 10 years ago now, but they didn’t do anything for me. So I’ve never been a regular user of them. I believe isochronic tones are a more effective way to produce hemispheric synchronisation because they produce a much stronger response in the brain
In their earlier experiments, the scientists had detected connections between neurons from organoids and neurons from the mouse brain, but they could not tell  whether or not the neurons could actually communicate with one and  other. Optogenetics is an extremely clever technique that uses light to  control neurons. By using this technique, the researchers were able to  specifically stimulate the neurons in the organoids by turning on and  off a light. When the light was on, the neurons of the organoids became  electrically active. When they used electrodes to measure the activity  of neurons outside the organoid in another part of the mouse brain, they  were able to detect electrically activated neurons there too, showing  that organoid neurons could signal to host neurons.
Thanks for your compliment on my article. 🙂 There are some frequency lists which reference and quote some links to metabolism, but I don’t know how effective or reliable that information is. One of the good things but also a drawback of this technology is how accessible it is to use and create tracks. That makes it unattractive for big companies to invest in large-scale research because it’s hard to patent and protect any product they produce based on the research. As soon as they released the frequency data, people like me would produce free videos and cheap MP3s to utilise the research, so they wouldn’t be able to get a good return on their research investment. So to try and gain some insight into what is working for people, at the moment, we are relying upon assessing anecdotal feedback in many areas. Before buying any products/tracks for increasing metabolism, I would look for and try out free videos on YouTube first, to try and gauge how those particular tracks and frequencies work for you.
This session uses a proven technique for inducing deep relaxation, playing one frequency for two minutes, then alternating to a second after a 30-second ramp, then reversing the process. The first half of the session switches between a serotonin-boosting 10Hz and the grounding and rejuvenating 7.83Hz Schumann resonance. The second half of the session goes even deeper, alternating between the relaxing 7.83Hz and 6.3Hz, a frequency associated with releasing anger and irritability. The session ends on a chilled out 10Hz.