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TS;DR: look at TLR .. 
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Long Version:
"trauma “results from exposure to an incident or series of events that are emotionally disturbing or life-threatening with lasting adverse effects on the individual’s functioning and mental, physical, social, emotional, and/or spiritual wellbeing.”"

www.kvc.org

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Long Version:
"trauma “results from exposure to an incident or series of events that are emotionally disturbing or life-threatening with lasting adverse effects on the individual’s functioning and mental, physical, social, emotional, and/or spiritual wellbeing.”"
Executive Function Issues
The mental skills required for healthy emotional and behavioral responses — largely supported by the prefrontal cortex — are known as executive functions. Executive functions include:- Working memory: Temporarily storing and working with information inputs without losing track of active tasks.
- Cognitive flexibility: Shifting thinking between different thoughts and ideas, as well as the ability to change and adapt based on these new perspectives.
- Inhibitory control: Suppressing irrelevant thoughts, impulses and behaviors to “think before you act.”
Emotional Dysregulation
This can be further exacerbated by the reliance of emotion regulation on executive functioning and is also heavily affected by early childhood trauma and ongoing trauma. Difficulty with emotion regulation may lead to several consequences throughout childhood or later in life, such as:- Post-traumatic stress disorder (PTSD)
- Depression
- Trouble recognizing emotions in self or others
- Inability to react to emotions in healthy ways
- Other forms of emotional dysregulation

Children May Not Remember Trauma, But Their Bodies Do
The latest neuroscience tells us that trauma affects a child's developing brain and impacts his or her behavior, biological development and even later-life health.