Model, Methodology & Mechanism

Model is the “why”

EMDRIA

• Adaptive Information Processing (AIP)
  • Distinct explanatory information processing model that is the foundation of EMDR
  • Guides history taking, case conceptualization and clinical intervention
  • Interprets clinical observations
  • Predicts adaptive treatment outcomes
  • Naturally occurring physical system that is adaptive
• Paradigm is independent of any neurobiological process

Methodology is the “how”

• Based on eight phases and Three-Pronged Protocol that organizes past, present and future
• Standard protocols and procedures guided by safeguards and ethics
• Specific clinical situations may require validated modifications
• Fidelity to the EMDR model is key to positive outcomes (Maxfield & Hyer, 2002)

Mechanism is the “what”

• Orienting response or reflex is the immediate reaction to change in the environment
  • Cognitive/information processing
    • Working memory and dual attention
  • Behavioral
    • Parasympathetic system is activated during processing
  • Neurobiological
    • Cerebellum processes visual signals
    • Hippocampal remapping – consolidates information from ST to LT memory
    • Limbic depotentiation
    • Frontal lobe activation
    • Thalamus processes and relays sensory information for neural integration
    • REM sleep
• Eye movements reduce image vividness and emotionality