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Muse...
Can you explain this to me?
Sure, I'll try!
State dependent memory works like a computer program in our bodies. If you were running hard, breathing hard when a trauma occurred, then having a pounding heart from aerobic activity could be a pre-requisite for remembering aspects of the trauma.
For me, my child abuse caused a lot of anger that never got acted upon or voiced. So when I get angry and feel I can't deal with it, I am able to access memories of that feeling.
I see it as a mental "code word" at the door of memory. It is how memory is backed up and accessed.
Smell/odor is the strongest state dependent memory catalyst. In movies, like "scent of a woman" this is likely a good thing. Smelling someone's perfume reminds someone of the positive emotions of falling in love.
However, for those with PTSD, this works in a negative usually. But we can use this knowledge to help. My Therapist offers strong scents when a patient gets triggered and dissociates as a way to tell the brain "Hey, this smell means you are not back 'there' in the trauma."
For me the flashbacks occurred due to state dependent memory. I was hearing and seeing something almost the same as when the trauma occurred. For child abuse, or "complex" trauma, triggers are woven into the fabric of life more so than for single-incident trauma that involves less time span and therefore less smells, sounds, experiences, feelings, etc.
I hope I make sense.
For Melissa Moody being stuck in a hospital bed for 30 reconstructive surgeries was a trigger for being attacked in her bed. Just lying in a bed was state dependent.
Rather than seeing this as a bad thing and feeling more the victim, I choose to see this as how the mind works, as interesting, and useful in healing. I try to learn all my triggers and honor them as part of my world and experience.