Низкая амплитуда альфа-ритма

Источник — обсуждение на форуме

Люди, чей мозг не производит достаточную амплитуду альфа-ритма, могут использовать алкоголь и каннабиноиды, которые способны повышать амплитуду альфа ритма.

Описание признаков эффективной работы альфа-ритма:

Pete
There are a number of things we look at relative to alpha:

1. Is alpha the dominant frequency in the rear of the head? (alpha/theta ratio)
2. What is the peak frequency of alpha (for adults, it should be about 10Hz in the back of the head)
3. Is the alpha stronger on the right hemisphere and in the posterior area of the head than on the left hemisphere and front of the head.
4. How synchronously does the brain produce alpha or, in other words, how effectively can the brain perform routine tasks and how efficiently can it maintain consciousness when no task is at hand and share information when one is.
5. How effectively does alpha block with eyes open or at task?

Those measures have impacts on emotional and cognitive performance. Low levels of alpha are likely to relate to anxiety and stress. High levels can also block our processing ability. Obsessive/compulsive/addictive and phobic issues are related to these alpha patterns. If a brain does not produce alpha, one solution is to use drugs, which often make people feel better temporarily.

Pete
What I was talking about was marijuana and alcohol, among others, have their effects by causing the brain to produce alpha. In addition to not being very desirable options for a kid (if anyone) they have the downside that they appear to make it harder for the brain to produce alpha on its own. Also the alpha tends to be slow and often not to block.

Remember that the software reflects internal states. The client needs to find the state of stillness and presence--the observer state. Alpha occurs when the conscious mind is still, not thinking or trying or judging. Best when eyes are closed. I used to try with clients to have them sit quietly with eyes open and just be aware from sounds of what I was doing in the room during the session. Teaching RSA breathing and having the client practice that with eyes closed can often produce alpha. Presumably the assessment showed a number of other things besides low alpha. Alpha happens when the brain is in an idling state, aware but not processing. When the brain is thinking or working (often without any real task to perform), alpha cannot appear because the neurons are producing beta speeds.