According to a recent study, the part of the brain commonly associated with memory and dementia could also hold key for emotional regulation. But new University of Toronto Scarborough research found that it might also yield important clues about a range of mental health illnesses including addiction, anxiety and depression. The research, authored by a team of neuroscientists, found that a specific part of the hippocampus could play an important role in emotional regulation, a finding that calls into question our understanding of how exactly this part of the brain works.