In the medical field, it has traditionally been used to examine abnormal brain activity and perform clinical tests for conditions such as epilepsy and depression.
Furthermore, neurofeedback can be used to improve physical and mental illnesses by reducing the risk of side effects caused by home therapy or drug therapy.
In addition, since it is possible to determine the stage of sleep by using brain waves, it is also used to reduce stress and promote relaxation by improving sleep.
In 2023, it was discovered that two brain waves called sleep spindles and slow waves that appear during deep sleep can improve blood sugar levels. It is being considered as one of the countermeasures for patients with hyperglycemia and type 2 diabetes.

By training brain activity for optimal performance through neurofeedback, motor skills and learning can be efficiently and scientifically improved. In addition, by applying electrical stimulation called tDCS (transcranial direct current stimulation) to specific parts of the brain, it has been shown to increase the reflex speed of the user's muscles and the degree of concentration of the brain.
It is used by Olympic athletes from various countries, astronauts, the navy, and the army during training.
In addition, regarding the movement disorder known as yips, in which people suddenly become unable to perform sports movements that they had been able to perform, a characteristic brain wave called event-related desynchronization (ERD), which is seen at the beginning of movements, is enhanced. It was discovered that there is. Brain waves are expected to be a way to overcome the yips.

EEG devices measure participation and interest levels during classes, and the measurement results are used to verify whether appropriate educational content is being provided.
Other initiatives have also been proven to be effective, such as using neurofeedback to help Japanese people learn differences in English pronunciation that are difficult to distinguish.
Research teams from Australia, Switzerland, and other countries have reported that tDCS also improves cognitive abilities such as perceptual ability, learning speed, and working memory.
Current methods are being improved by being able to increase or decrease activity in different areas of the brain by flipping a switch.

With human management and counseling, it is difficult to accurately measure stress levels due to atrophy, differences in values, vanity, etc., and there are cases in which the person himself or herself is unaware of unconscious stress. You can expect to improve productivity, reduce stress, and improve mental health through work and placement.
For example, when we tested engineers, we found that they tend to maintain a certain level of concentration while working.
In the case of salespeople, a very high level of concentration is observed in the early stages, but verification results show that after a certain period of time, the level of concentration gradually decreases.

​Click here for the case study of Ebara Corporation.

Instead of conventional marketing activities based on subjective evaluations such as questionnaires and interviews, it is now possible to objectively evaluate people's emotions and consciousness based on the intuitive reactions of brain activity.
The behavioral principles that arise from people's unconsciousness can be used for marketing activities such as product development and advertising.
Specifically, in the automobile industry, brain waves are also used in the development stage of tires.
When conducting comparative driving tests with conventional tires and new tires, it was found that all drivers' stress levels tended to decrease while driving.