Official Title: fMRI Studies of Emotional Circuitry in Major Depression: Treatment Changes
Status: COMPLETED
Status Verified Date: 2018-06
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: The overall purposes of this research are to determine if Cognitive Behavioral Therapy (CBT) has the same healing effect on the brain for people with depression as traditional antidepressants do, and in comparison to healthy controls with no history of depression, to find out more about the causes of depression including differences in the extent of problems caused by depression. We hypothesize that CBT will have the same healing effect on the brain as antidepressants; that differences in brain activations created by the various tasks and genetic differences will help us understand differences in the type and severity of symptoms among the depressed subjects.
Detailed Description: The overall purposes of this research are to determine if Cognitive Behavioral Therapy (CBT) has the same healing effect on the brain for people with depression as traditional antidepressants do, to find out more about the causes of depression and why people differ in the extent of problems caused by depression, and to determine if certain differences in genes within populations are related to clinical symptoms.Genes we are examining for this study are COMT, BDNF, and 5-HTT long arm and short arm, as well as future genes that may be discovered to play a role in depression at a later time, and will be determined by examining saliva and blood samples. We are primarily studying depression by functional Magnetic Resonance Imaging (fMRI) which allows us to identify certain parts of the brain that show how the brain works in controlling negative feelings. Participants will be imaged while performing different tasks that are believed to activate emotional circuitry of the brain. Comparisons of activation patterns across these tasks will be used to characterize the cognitive mechanisms supported by different cortical regions, and to determine patterns of functional brain deficits in subjects with depression. Comparisons will also be made between changes that occur after treatment with an approved antidepressant and treatment with CBT.