How does threat influence memory, in the context of PTSD? I'm trying to connect two concepts to PTSD - memory and motivation. I believe the concept of threat is what will tie PTSD to motivation. I...

How does threat influence memory, in the context of PTSD? I'm trying to connect two concepts to PTSD - memory and motivation. I believe the concept of threat is what will tie PTSD to motivation.

I chose the subject of Psychology, but this is also a Neuroscience question.