The Cohen Lab studies neural circuits underlying reward, mood and decision making. We seek to understand how neural circuits control fundamental mammalian behaviors. Many disorders, including depression, schizophrenia, drug addiction and Parkinson's disease, appear to involve dysfunction of monoaminergic signaling. Using cell-type-specific tools and well-controlled behavioral tasks in mice, we aim to understand the function of monoaminergic circuits in behavior. We hope these basic discoveries will lead to an understanding of the biology of the brain and better treatments for disorders of the brain.