Key Brain Areas Affected in Depression
The Prefrontal Cortex
The Hippocampus
The Amygdala
The Amygdala: Emotional Response and Stress
The amygdala is involved in emotional reactions, especially fear, stress, and threat detection. This heightened response may explain why some people with depression can feel:
- Overwhelmed by stress
- Emotionally sensitive
- Stuck in negative emotional loops
The Prefrontal Cortex: Mood and Decision-Making
Studies show that in people with depression, parts of the prefrontal cortex may be less active than usual. This reduced activity can help explain common symptoms of depression, such as: - Trouble concentrating
- Difficulty making decisions
- Feeling mentally slowed down
- Negative thinking patterns
The Hippocampus: Memory and Learning
Studies have found that people with long-term or severe depression may have changes in the size and activity of the hippocampus.These changes may be linked to:
- Memory problems
- Difficulty learning new information
- Trouble recalling positive memories
[DE-0132] Key Brain Areas Affected in Depression
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Created on February 9, 2026
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Transcript
Key Brain Areas Affected in Depression
The Prefrontal Cortex
The Hippocampus
The Amygdala
The Amygdala: Emotional Response and Stress
The amygdala is involved in emotional reactions, especially fear, stress, and threat detection. This heightened response may explain why some people with depression can feel:
The Prefrontal Cortex: Mood and Decision-Making
Studies show that in people with depression, parts of the prefrontal cortex may be less active than usual. This reduced activity can help explain common symptoms of depression, such as:- Trouble concentrating
- Difficulty making decisions
- Feeling mentally slowed down
- Negative thinking patterns
The Hippocampus: Memory and Learning
Studies have found that people with long-term or severe depression may have changes in the size and activity of the hippocampus.These changes may be linked to: