The Mental Research Institute (MRI) is a nonprofit organization located in Palo Alto, California. Founded in 1959, it focuses on the study and treatment of mental health issues through innovative research and therapy methods. MRI is known for its contributions to the field of psychotherapy, particularly in the development of brief therapy techniques. MRI has been influential in the evolution of systemic therapy, emphasizing the importance of understanding individuals within their relational contexts. The institute has produced numerous publications and training programs, contributing to the work of notable figures such as Gregory Bateson and Jay Haley in the field of family therapy.