The folds and ridges of the human brain are more complex than any other in the animal kingdom, and a new study shows that this complexity may be linked to the brain's level of connectivity and our reasoning abilities .
Research led by a team from the University of California, Berkeley (UC Berkeley) looked at the brain shapes and neural activity of 43 young people, and in particular the lateral prefrontal cortex (LPFC) and lateral parietal cortex (LPC) – parts of the brain that handle reasoning and high-level cognition.
The grooves and folds on the brain are known as sulci , with the smallest grooves known as tertiary sulci. These are the last to form as the brain grows, and the research team wanted to see how these grooves related to cognition.
"The hypothesis is that the formatio