Sony to begin sales of machine that could help detect dementia

According to The Asahi Shimbun, Sony Corp. will begin selling a device to medical institutions in spring next year that can measure one’s sense of smell and could help detect dementia early on, the electronics giant announced.
A person’s sense of smell is believed to decline in the early stages of dementia.
The device measures about 40 centimeters in length and width.
It emits five types of odors such as a flower, fruit and the smell of something rotting. By changing the strength of these emissions, the equipment can produce a total of 40 odors.

https://www.asahi.com/ajw/articles/14736540