Usually reserved for patients with severe depression who are suicidal, occurs when an electric current is passed through the right hemisphere of the brain. a lobotomy

The correct answer should be electroconvulsive therapy (ECT).
This type of therapy is done under general anesthesia, and is used for people with various mental disorders. The way it works is by changing brain chemistry so that people may start thinking completely differently, and are thus cured of their disorder. Lobotomy has to do with cutting into a person's brain, so this isn't it.

During the paleolithic, hominins grouped together in small societies such as bands, and subsisted by gathering  plants  and fishing, hunting or scavenging wild  animals. the paleolithic is characterized by the use of knapped stone tools, although at the time humans also used  wood  and bone tools.

Ithink it’s bill gates.