brain activity

The Stentrode chip would allow paralyzed people to use digital devices and move their limbs with their thoughts.

Both laughter and fear reflect high states of arousal, or moments in which we feel very intense emotions. For this reason, it is not unusual for a person who is scared to scream first and then laugh.

According to a study, the human brain has learned to react to certain emoticons as if it were a real face. It would not be an innate neural response, but a culturally created one, which has greatly surprised researchers.

They associate deep and restful sleep with a lower amount of beta amyloid in the brain, a protein related to the development of Alzheimer's.

Also known as gray matter, we find it mainly located on the surface of the brain or cortex. It acquires its natural grayish color so characteristic of neurons and glial cells, although in a living person it does not really have this color.

They use a part of the brain similar to the one we use, the parietotemporal cortex. In addition, they do not need to be previously trained.

Fear is a human emotion that, like all the others, has a biological function. It serves to alert us and to protect ourselves against dangerous situations.

Two factors must be taken into account: they are rich in omega-3 fatty acid and have low levels of mercury, a toxic that accumulates in large species.