Additional Study Information: Our research team studies the biological causes of depression and suicidal behavior using behavioral research. Our ultimate goal is to improve prevention of suicide. You may be eligible if you have depression either with or without suicidal thoughts or previous suicide attempts. Participation involves clinical assessments, a week-long phone survey, a stress test and computer games, with compensation of $250. If you also sign up for our companion neuroimaging study, you could receive up to a total of $1,250 and 3 months of free psychiatrist visits for medication treatment. Our rigorous safety protocols minimize the risk of COVID-19 exposure.