
Ketamine Assisted Psychotherapy
How Ketamine Affects the Brain
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Trauma and the Brain
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Trauma often creates rigid neural pathways and overactive fear circuits (like the amygdala).
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This rigidity makes it hard for the brain to integrate traumatic memories or develop new perspectives.
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Both Ketamine and EMDR aim to unlock these stuck patterns, but in different ways.
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What Ketamine Does
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Neuroplasticity Boost: Ketamine blocks NMDA receptors and increases AMPA signaling → triggers BDNF release and new synaptic growth.
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State Shift: Creates a dissociative, dreamlike state, reducing the grip of fear and hypervigilance.
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Emotional Buffering: Makes clients less reactive
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What EMDR Does
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Uses bilateral stimulation (eye movements, tapping, tones) to help the brain reprocess traumatic memories.
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Moves the memory from implicit (emotional, sensory) storage to explicit (narrative) memory → less triggering over time.
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Strengthens adaptive memory networks, so clients can attach new meaning to old events.
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Why They Work Well Together
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Ketamine opens the door; EMDR walks through it.
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Ketamine: Increases plasticity, reduces fear response, and creates psychological flexibility.
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EMDR: Provides a structured way to reprocess and integrate trauma while the brain is in this flexible state.
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Together:
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The client feels safe enough to approach traumatic memories. ◦ The brain is biologically primed to form new connections.
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The emotional intensity is softened, so processing is less overwhelming and more effective.
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The Healing Sequence
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Ketamine session → brain plasticity increases for hours to days.
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EMDR session during this window → leverages neuroplastic state for deep reprocessing.
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Result: Stuck trauma patterns loosen, and new adaptive beliefs and emotional responses take root faster.
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In short: Ketamine helps the brain open up and grow new pathways, and EMDR guides those pathways toward healing and integration.