Therapist Uncensored Podcast The Amygdala Unpacked with Dr. Joseph LeDoux – Replay (217)
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Oct 24, 2023 Delve into the complexities of the amygdala's threat detection system, explore avoidance behaviors and neural mechanisms, and unravel the mysteries of protein synthesis in memory formation. Discover how traumatic memories and fear responses shape our experiences, and explore deep dive resources on interconnectedness and brain functions.
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Split-Brain Patients Reveal Instant Narratives
- LeDoux describes split-brain patient experiments that revealed an automatic narrative from the left hemisphere.
- Patients generated instant explanations for actions driven by the non-speaking hemisphere, showing built-in storytelling to reduce dissonance.
Freezing Blocks Active Coping
- Freezing behavior prevents proactive coping because it blocks action.
- Individual differences in freezing explain why some subjects can't execute avoidance despite learning it.
Memory Retrieval Makes Traces Vulnerable
- Memory retrieval destabilizes synaptic traces and requires protein synthesis to restabilize.
- Blocking protein synthesis around retrieval can erase conditioned responses in animals (reconsolidation phenomenon).
