Brain Science with Ginger Campbell, MD: Neuroscience for Everyone BS 161 Joseph Ledoux
17 snips
Sep 27, 2019 AI Snips
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From Business Degrees To Neuroscience
- Joseph Ledoux described his unconventional path from business degrees into neuroscience and split-brain research.
- He then transitioned to decades of rodent research on danger detection and the amygdala.
Survival Behaviors Precede Feelings
- Survival behaviors (detecting danger, eating, reproducing) trace back to the origin of life and predate nervous systems.
- Joseph Ledoux argues subjective feelings are not necessary for those behaviors and evolved later.
Amygdala Controls Responses, Not Feelings
- The amygdala controls behavioral and physiological responses to threat but does not itself generate the conscious feeling of fear.
- Ledoux distinguishes implicit (non-conscious) threat responses from explicit conscious fear states.