Not detecting smell can be a symptom of brain diseases – study

It is natural for your nose and mouth to shrink when you get an odor or smell, but if you do not feel the smell, then be alert. It means that there is some health related problem. To investigate these things, the scientists of the University of Tokyo have created a Odor Delivery Device Has been created, which will analyze machine learning based electroencephalogram and information can be obtained from it that when and where the processing of smell-odor takes place in the brain.
In this study it has been found that the information of smell in the brain is different from the previous process, but when the smell is born again, its processing is faster than before the scent. In such a situation, if the smell is not detected, then it should be cautious considering that it may possibly be an early symptom of neurodegenerative disease. In this way, understanding about future diseases can increase and time can be found for its diagnosis.

It should be noted whether the aroma of hot coffee early in the morning helps you to start the day or you cannot tolerate any smell. According to the study, how fast the processing of these scents or smells takes place in your brain depends on your thinking whether you consider it as an aroma or a foul smell. The findings of this study are published in the journal PNAS. published Has been done.

How Oddr Delivery Device Works

An odor delivery device created by a team of researchers from the University of Tokyo can deliver 10 types of smell-fragrance to the brain at the right time. Participants in the study were wearing non-invasive scalp-recorded electroencephalogram (EEG) caps. From this the signal generated in the brain was recorded. The researchers used machine learning based computerized analysis of its data to find out when and where the processing of which range of those smells was done in the brain for the first time.

The brain gets the information about the smell faster

Researcher Mugihiko Kato of the University of Tokyo’s Graduate School of Agricultural and Life Science said that we were surprised that the EEG was able to catch its signal more quickly than the response, ie in 100 milliseconds. This indicated that the brain gets information about the smell very fast. He told that this study of his shows that the sense of fragrance or smell is at different levels.

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Smell processing done before fragrance

According to Associate Professor Masako Okamoto, associated with the study project, the processing of the smell took place before the aroma. They reported that processing of the rot occurred 300 milliseconds earlier in the participants’ brains than those that were odorless or scented. Whereas the processing of the aroma of fruit and flowers took place in the brain after 500 milliseconds or so. However, the intensity of the smell also plays a role in this. After 600-850 milliseconds after receiving the smell or aroma, emotional and memory processing takes place in the brain.

What happened in the study

Let us tell you that in the past it has been believed that the feeling or not of foul smell can be a warning of feared risks. Researchers said that each sensor system in the central nervous system processes the sense of smell, light, sound, taste, pressure and temperature in different ways. In this way we get to know the sensitivity of each system.

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According to researchers, through EEG Imaging, it will be easier for us to understand the neurodegenerative mechanisms and in the future, we can also find a cure for mental diseases like Parkinson’s and Alzheimer’s.

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