It begins in the first moments of life with a mass of sensations: like adults, babies perceive what surrounds them, with a little more slowly. Then, by age 2, self-awareness is rooted and this inner narrative becomes more complex. Throughout his life, it becomes an "increasingly sophisticated representation of the outside world," as researcher Stanislas Dehaene explains. Fed by memories and sensations, our conscience becomes a small personal inner voice for each one.
After millennia of evolution, experts say it: human intelligence would be in decline. This documentary, the second part of an exploration of two parts of the brain, complements the theories of psychologists, biologists or neurologists. Even if we become more stupid than the Cro-Magnon man, science is full of ideas to stimulate our gray matter. A transplant of human brain cells in mice has thus increased its capacity ... The documentary also progressively reveals the functioning of our intelligence, the role of neurons, myelin, astrocytes, a much more sophisticated and complex environment.
