There are several ways to study brain activity. One of these is MRI (magnetic resonance imaging). Functional MRI allows researchers to link brain activity to specific functions or behaviors in real time.
Electrical activity can also be measured using EEG (electroencephalography). This method allows you to accurately measure the formation time of brain waves, but it is also impossible to determine in which regions these waves occur.
Finally, it is possible to measure the brain’s response to magnetic stimulation.
All our behavior is based on the activities of brain neurons (nerve cells in the brain). There are so-called brain states, that is, “repetitive patterns of activity distributed throughout the brain and resulting from physiological or cognitive processes.” These conditions are related to human behavior.
The most frequently studied brain states in humans and rodents are rest and arousal. They are affected by environmental factors.
Working with a specific brain state alpha, delta, etc. can be expressed in terms. All of these refer to the brain waves that occur as a result of measuring brain activity using EEG. Gamma frequency is associated with situations or tasks that require concentration and focus, beta is associated with higher anxiety and more active situations, alpha is associated with relaxed and passive attention, theta is associated with deep relaxation and internal concentration, and delta is associated with deep sleep.
Can we somehow influence the state of our brain? At this point it would be very naive to believe this is real. The thing is that the mechanisms associated with brain states are still difficult to unravel. However, there are now treatments based on brain function. For example, sensory effects, neurofeedback therapy, etc.
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Source: Ferra
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