The Neurobiology of Trauma Part 2 - SAKITTA · 2019-11-19 · The Neurobiology of Trauma What You...
Transcript of The Neurobiology of Trauma Part 2 - SAKITTA · 2019-11-19 · The Neurobiology of Trauma What You...
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The Neurobiology of TraumaWhat You Need to Know About the Brain and Trauma(PART 2)
Rebecca Campbell, Ph.D.Professor of PsychologyMichigan State University
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This project was supported by Grant No. 2015-AK-BX-K021 awarded by the Bureau of Justice Assistance. The Bureau of Justice Assistance is a component of the U.S. Department of Justice's Office of Justice Programs, which also includes the Bureau of Justice Statistics, the National Institute of Justice, the Office of Juvenile Justice and Delinquency Prevention, the Office for Victims of Crime, and the SMART Office. Points of view or opinions in this document are those of the author and do not necessarily represent the official position or policies of the U.S. Department of Justice.
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In this three-part webinar series,
I want to share with you how research on the
brain can help us connect the dots . . .
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Sexual
Assault
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Sexual
AssaultImmediate
Aftermath of
the Assault
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Sexual
Assault
Cold Case
Investigation
& Notification
Immediate
Aftermath of
the Assault
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1 Year? 2 Years? 3 Years? ... 10 Years?
Sexual
Assault
Cold Case
Investigation
& Notification
Immediate
Aftermath of
the Assault
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Webinar: Part 1
▪ How the brain & body react to major traumas,
including sexual assault
▪ Emphasis on understanding victim behavior
during assault & in immediate aftermath
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Webinar: Part 2
▪ How the brain & body react to major traumas,
including sexual assault
▪ Emphasis on understanding memory formation
& recall during assault & in immediate aftermath
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Webinar: Part 3
▪ How the brain & body react to major traumas,
including sexual assault
▪ Emphasis on understanding implications for
cold case investigations and victim notifications
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The Neurobiology of Trauma: RECAP
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“In the midst of assault, the brain’s fear circuitry takes over while other key parts are impaired or even effectively shut-down.
This is the brain reacting to a life-threatening situation just the way it is supposed to.”
Hopper & Lisak, 2014
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“Fear Circuitry”
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Amygdala
XIMPLICATIONS FOR:
Behavior
Memory
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Understanding Memory Formation & Recall
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Sexual
AssaultImmediate
Aftermath of
the Assault
MEMORY
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“[Trauma victims] may be unable to recall many important details . . . may be uncertain about many . . may be confused about many . . may recall some details inaccurately.
This is the human brain working the way it was designed to work.”
Hopper & Lisak, 2014
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Memory: How Memory Works
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Memory: How Memory Works
Attention What are we paying attention to? What we attune to affects what we can remember
Memory Encoding How the hippocampus captures what we’re attending to to start forming a memory
SOURCE: Diamond et al., 2007; Wilson et al. 2016
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Memory: How Memory Works
Attention What are we paying attention to? What we attune to affects what we can remember
Memory Encoding How the hippocampus captures what we’re attending to to start forming a memory
SOURCE: Diamond et al., 2007; Wilson et al. 2016
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Memory: Encoding
Central Details Core aspects of an experience that captured our attention (more likely to be encoded)
Peripheral Details What’s happening around the core experience that didn’t capture our attention (less likely to be encoded, not as strongly encoded)
SOURCE: Diamond et al., 2007; Wilson et al. 2016
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CENTRAL
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CENTRAL
PERIPHERAL
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Amygdala
IMPLICATIONS: Memory
X
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Memory: How Trauma Affects Memory
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Memory: How Trauma Affects Memory
Central Details in Trauma
Central to survivalOften are SENSORY-based“Small” details that may not seem important to others
Peripheral Details
Not central to survivalOften are CONTEXT-based Details that others may see as important
SOURCE: Schwabe et al. 2012; Wilson et al. 2016
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Memory: How Trauma Affects Memory
Central Details in Trauma
Central to survivalOften are SENSORY-based“Small” details that may not seem important to others
Peripheral Details
Not central to survivalOften are CONTEXT-based Details that others may see as important
SOURCE: Schwabe et al. 2012; Wilson et al. 2016
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CENTRAL Survival, Sensory
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CENTRAL Survival, Sensory
SightsSounds
Smells
Weapons
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PERIPHERAL Context
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PERIPHERAL Context
Time
Place
Physical Scene
Events in Sequence
Duration of Event
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Memory: Recalling Traumatic Memories
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are simply missing, not encoded because peripheral or because alcohol
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
WHY? Peripheral
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PERIPHERAL Context
Time
Place
Physical Scene
Events in Sequence
Duration of Event
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
WHY? Peripheral
Alcohol/Drug Use
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
WHY? Peripheral
Alcohol/Drug Use
Can’t Find RIGHT NOW
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
WHY? Peripheral
Alcohol/Drug Use
Can’t Find RIGHT NOW
Stressed, No Sleep, Lack of Trust
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
WHY? Peripheral
Alcohol/Drug Use
Can’t Find RIGHT NOW
Withheld
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong, “filled in” by victim (unconsciously or on purpose)
WHY? Peripheral
Alcohol/Drug Use
Can’t Find RIGHT NOW
Withheld
Embarrassed, Ashamed, Lack of Trust
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
WHY? “Filled In” by Victim (unconsciously)
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
WHY? “Filled In” by Victim (unconsciously)
Feel Pressured to Answer
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
WHY? “Filled In” by Victim (unconsciously)
Feel Pressured to Answer
Lying
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“Executive Functions”Including Inhibitory Control
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
BUT... Central memories stable, accurate
Peripheral memories often accurate
Very few victims fabricate assault
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
BUT . . . Central memories stable, accurate
Peripheral memories often accurate
Very few victims fabricate assault
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
AND . . . Central memories stable, accurate
Peripheral memories often accurate
Very few victims fabricate assault
Implications for How To Interview Victims
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Memory: Recalling Traumatic Memories
Fragmented Not organized in a linear sequence
Incomplete Some details are missing
Incorrect Peripheral details could be wrong
AND . . . Central memories stable, accurate
Peripheral memories often accurate
Very few victims fabricate assault
“Can You Help Me Understand What You’re Able to Remember
About Your Experience?”
“Tell Me More About [That] . . .”
Resources At:
End Violence Against Women International
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Memory: SUMMARY
Victims are in survival mode brain shutting down conscious control & fear circuitry takes over
What is central vs. peripheral varies victim-to-victim, assault-to-assault
Reasons for why story is fragmented & scatteredre-evaluate through a neurobiological lens
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Why It’s Important To Understand the Neurobiology of Trauma . . .
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He wouldn’t let up,pounding me with question after
question after question.
Trying to trick me, trying to get me to mess up.
I wanted to say, ‘hold on, give me a minute to think’.
No, he kept coming at me.
Why It’s Important To Understand the Neurobiology of Trauma . . .
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When You DO Understand the Neurobiology of Trauma . . .
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When You DO Understand the Neurobiology of Trauma . . .
He offered me a cup of coffee.
Coffee? OK fine. How do I take it?WHAT? Why does he care how I
take my coffee? Well, he did.
He made me coffee. He gave me time to just sit, collect my thoughts.
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When You DO Understand the Neurobiology of Trauma . . .
We talked it through. And I didn’t feel rattled and freaked out. I’m sure I was incoherent and he just let it roll. He was patient.
I felt like I was piecing it together, like a puzzle, we were putting
together a puzzle.
And drinking coffee.
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Amygdala
XIMPLICATIONS FOR:
Behavior
Memory
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Please Join Us For Part 3!