Trauma From a Single Event — and Trauma That Develops Over Time
Experiences shape how your brain learns danger, how your nervous system adapts, and why old patterns can remain.
Trauma Can Develop in Different Ways
Some traumatic reactions can be traced to a particular event. Others develop gradually through experiences that happen repeatedly or over a long period of time.
When One Event Changes the Way Danger Is Experienced
A traumatic response can follow a single overwhelming experience such as a motor vehicle accident, assault, medical procedure, difficult childbirth, natural disaster, or exposure to violence or war.
Afterward, the nervous system may remain highly alert. Sounds, smells, crowds, movement, or other reminders of the event may trigger strong emotional or physical reactions. Some people feel constantly on guard, easily startled, or unable to fully relax.
A short film illustrating what hypervigilance can feel like in an ordinary public setting.
A discussion of Adverse Childhood Experiences and the lasting effects of childhood adversity.
When Trauma Develops Over Time
Other forms of trauma develop gradually rather than from one identifiable event. Repeated experiences of fear, instability, neglect, criticism, violence, addiction in the home, or emotionally unavailable caregiving can shape how a child learns to respond to stress and relationships.
Over time, the nervous system adapts to the environment it expects. Those adaptations may have been useful at the time, but they can continue into adulthood as anxiety, hypervigilance, difficulty trusting, emotional withdrawal, or strong reactions to conflict.
Trauma Is More Than the Event
Two people can experience similar events and respond very differently. What matters is not simply what happened, but how the experience was processed by the brain and nervous system.
When an experience overwhelms our ability to process what happened, elements of it can remain emotionally and physically active.
Instead of feeling like an ordinary memory located clearly in the past, a reminder can trigger fear, tension, shame, helplessness, or physical sensations that feel very much like they belong to the present.
Psychiatrist and researcher Bessel van der Kolk discusses the effects of traumatic experience on the brain, body and memory.
Attachment research illustrates how early experiences of connection, separation and safety shape responses to relationships and stress.
Early Relationships Shape How We Learn Safety
Long before we can explain what we need, the nervous system is learning whether other people are safe, dependable, and emotionally available.
When caregivers are consistently responsive, children are more likely to develop an expectation that distress can be managed and that relationships can be trusted.
When caregiving is frightening, inconsistent, unavailable, or unpredictable, children adapt. Those adaptations can continue into adulthood even when they are no longer needed for protection.
This may show up later as anxiety in close relationships, difficulty trusting, emotional withdrawal, fear of rejection, strong reactions to conflict, or difficulty calming after feeling threatened.
These Reactions Were Learned — Which Means They Can Change
Trauma therapy is not simply about repeatedly talking about what happened. Effective trauma treatment can help change the emotional and physiological responses that became connected to an experience.
In my practice, I use ART along with a variety of other trauma-focused approaches, adapting the work to the individual and the problem being treated.
The goal is not to erase your history.
It is to help the past feel like the past.
One of the most important processes involved in this kind of change is called memory reconsolidation. Understanding it helps explain why approaches such as ART, EMDR, Brainspotting and other trauma therapies can produce changes that talking alone may not.
How Trauma Memories Can Change → Next: Understanding Memory ReconsolidationSchedule an Appointment or Consultation
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