PTSD and Brain Function
Brain Regions in PTSD
Stress, Trauma, and Memory
Recovery and the Brain
100

This stress hormone can affect the hippocampus when stress becomes chronic.

Cortisol
100

This brain region helps with decision-making, emotional control, and calming fear responses.

Prefrontal-Cortex

100

This stress hormone can interfere with memory when stress becomes long-term.

Cortisol

100

 This term describes the brain’s ability to change and adapt over time. 

Neuroplasticity

200

This PTSD symptom makes a person feel like they are reliving a traumatic event instead of simply remembering it.

A Flashback Memory

200

This brain region is important for emotional memory and helps attach fear to certain experiences.

Amygdala

200

Who researched the regulation of Cortisol and PTSD?

Yehuda et al 1995

200

These techniques help a person return to the present moment during a flashback or intrusive memory.

Grounding techniques

300

In PTSD, this fear-processing brain region can become overactive, making traumatic memories feel more intense.

The amygdala

300

This brain structure can be affected by chronic stress hormones, making it harder to form or retrieve memories clearly.

The hippocampus

300

PTSD can weaken everyday memory while making these memories stronger and more intrusive.

Traumatic memories

300

This type of therapy helps people process traumatic memories instead of avoiding or reliving them.

Trauma focused therapy

400

This PTSD symptom occurs when a traumatic memory suddenly returns without the person choosing to remember it.

An intrusive memory

400

In PTSD, reduced control from the prefrontal cortex can make it harder to calm this brain region.

The amygdala

400

Because the amygdala is overactive, PTSD can strengthen this type of memory connected to fear and emotion.

An emotional memory

400

During PTSD recovery, the goal is not to erase the traumatic memory, but to reduce its emotional intensity through this process.

Processing those traumatic memories

500

When the hippocampus is disrupted, traumatic memories may become broken, unclear, or poorly organized.

Fragmented

500

PTSD affects memory because these three brain regions stop working together normally.

Amgdala, prefrontal-cortex, and hippocampus 

500

This happens when a person feels like they are reliving a traumatic event instead of remembering it as something from the past.

A flashback memory

500

As recovery progresses, the prefrontal cortex can become better at regulating this fear-processing brain region.

The amygdala