Linking Neuroscience and Behavior in COVID-19 examines the effect of both the virus and the pandemic on behavior and mental health. Chapters look at the burden of the COVID-19 pandemic on those with pre-existing conditions, including Parkinson’s disease and multiple sclerosis. The ongoing consequences of the pandemic on the mental health of the broad populace are discussed. As well as the neurological effects of the virus itself, chapters discuss psychological concerns including depression and anxiety. Finally, the chapters also include aspects relevant to managing care and the treatment of conditions. A broad range of conditions preceding, caused by, or emerging for the first time during the pandemic are also detailed.