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Appendix 6 Neurobiology of Trauma - PowerPoint PPT Presentation


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Appendix 6 Neurobiology of Trauma. Cortex. Sensory Thalamus. Amygdala. Basic Neurobiology of Trauma. The “high” road. The “low” road. FEAR. VINE?. SNAKE?. VINE. Phew! Vine. SNAKE!. SNAKE!. Fear. SNAKE!. Fear. No Threat. No Danger. Pre-Trauma Processing of “ordinary” stimulus.

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slide2

Cortex

Sensory Thalamus

Amygdala

Basic Neurobiology of Trauma

slide3

The “high” road

The “low” road

FEAR

slide4

VINE?

SNAKE?

slide5

VINE

Phew! Vine

slide6

SNAKE!

SNAKE!

Fear

slide7

SNAKE!

Fear

slide8

No Threat

No Danger

Pre-Trauma Processing of “ordinary” stimulus

slide9

Threat!!

Danger!!

Post-Trauma Processing of “ordinary” stimulus

slide10

Trauma produces an anatomical change in the brain

Post-trauma fear network in Amygdala

slide11

A landscape of fear-inducing cues

Post-trauma fear network in Amygdala

slide12

Integrated Narrative

Neurobiology of Non-Traumatic Memory

slide13

LTP builds the neural networks that create new memories

LTP

LTP

LTP

Hippocampus

Neurobiology of Traumatic Memory

slide14

Trauma interferes with LTP functioning

LTP

Results in loss & fragmentation of memories

LTP

LTP

Hippocampus

Neurobiology of Traumatic Memory