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Transforming the understanding
and treatment of mental illnesses.

Generalized Anxiety Disorder

Generalized anxiety disorder (GAD) usually involves a persistent feeling of anxiety or dread, which can interfere with daily life. It is not the same as occasionally worrying about things or experiencing anxiety due to stressful life events. People living with GAD experience frequent anxiety for months, if not years. Learn more about generalized anxiety disorder.

Join A Study

For opportunities to participate in NIMH research on the NIH campus, visit the clinical research website. Travel and lodging assistance may be available.

Featured Studies

Featured studies include only those currently recruiting participants. Studies with the most recent start date appear first.


Improving Attentional and Cognitive Control in the Psychological Treatment of Intrusive Thoughts

Study Type: Interventional
Start Date: April 30, 2021
Eligibility: 18 Years to 60 Years, Does Not Accept Healthy Volunteers
Location(s): Massachusetts General Hospital, Boston, Massachusetts, United States

The investigators are conducting this study to learn more about the cognitive and attentional processes among individuals with three types of repetitive negative thinking (RNT): mental rituals (as seen in obsessive compulsive disorder, OCD), worries (as seen in generalized anxiety disorder, GAD), and ruminations (as seen in major depressive disorder, MDD). Specifically, the investigators are studying whether psychological treatment can help people with RNT who have trouble stopping unwanted thoughts and shifting their attention.


Internet-delivered Cognitive Behavioral Treatment of Depression and Anxiety in Latin American College Students

Study Type: Interventional
Start Date: March 1, 2021
Eligibility: 18 Years and Older, Does Not Accept Healthy Volunteers
Location(s): Universidad Nacional Autonoma de México, Mexico City, Mexico; Universidad Cooperativa de Colombia, Medellín, Colombia

The aim is to evaluate short term and longer term treatment effects of internet-delivered cognitive behavioral therapy compared to treatment as usual for college students with anxiety and/or depression in low-middle income countries of Latin America.