As we learn more about how the brain works, we are starting to understand how moods and feelings are controlled by brain chemistry. So what happens to pschoanalysis – talk therapy – that has been popular since Freud? “Advances in neurology, and especially in pharmacology, have called such therapy into question. When psychological and emotional disturbances can be traced to faulty brain chemistry and corrected with a pill, the idea that sitting and talking can treat a problem such as clinical depression might seem outdated.”