Listen now (6 mins) | In this series on psychological perspectives, we continue our journey in this article by exploring the psychobiological perspective. In the later part of the 20th century, there were a lot of advancements in the field of neurobiology which influenced our understanding of the human brain. Today, we know about the complex structure of the brain, about the interrelationships between these structures that makes the brain work, and about the electrochemical communication between the neurons within the human brain.