Modern neuroscience has revealed how epigenetics affects the brain's structure, chemistry, and function — knowledge that's transforming treatment approaches.
The Brain Regions Involved in Epigenetics
Key brain areas implicated in epigenetics include:
- Amygdala: The brain's threat-detection center becomes hyperactive in epigenetics, triggering excessive fear and stress responses
- Prefrontal Cortex: Responsible for rational thinking and emotional regulation — its function is often impaired by epigenetics
- Hippocampus: Memory and context processing; chronic epigenetics can affect its volume and function
- HPA Axis: The stress hormone system that, when dysregulated, drives many physical symptoms of epigenetics
Neurochemistry of Epigenetics
Epigenetics involves imbalances or dysregulation of key neurotransmitters including serotonin, dopamine, norepinephrine, and GABA — all targets of current treatments.
How Treatment Changes the Brain
Both therapy and medication produce measurable changes in brain function in epigenetics. CBT, for example, has been shown to normalize amygdala reactivity.
Neuroplasticity and Epigenetics
The brain retains its ability to change throughout life. This neuroplasticity means that with appropriate treatment and practice, the neural patterns underlying epigenetics can genuinely change.