Heroes have bigger amygdalae!
Sixty Minutes had an interesting story last night about researchers who used fMRI techniques to measure brain activity of people who responded "heroically" in crisis situations. Turns out they tend to have amygdalae larger than average humans! Here's the story: https://www.cbsnews.com/video/andrew-carnegie-hero-fund-commission-60-minutes-video-2023-01-22/?adobe_mc=TS%3D1674435322%7CMCMID%3D75455330816119198287527672950045914211%7CMCORGID%3D10D31225525FF5790A490D4D%40AdobeOrg .
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Special thanks to Katie Zhang for sharing this Wikipedia link that traces the origin of this effect to Wolfgang Köhler in 1929. Here's the link: https://en.wikipedia.org/wiki/Bouba/kiki_effect and ref
The amygdala is one of the oldest organs in the animal kingdom and it has a lot to do with analyzing and processing fear stimulants. But our memories of those stimulants and episodes do not permanentl
When did brains appear in the animal kingdom? New evidence suggest very early in the Cambrian period in little creatures called Cardiodictyon. Here's the story: https://mindmatters.ai/2022/12/earliest