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aYsY4dDQ2NrcNzA | 1 year ago

Little-known fact: amygdalae come in pairs. You have two of them.

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endoblast|1 year ago

Yes. My knowledge of neuroscience is derived mainly from articles like this and popular science books where many things are left vague.

If someone has a hippocampus or amygdala damaged or removed it's rarely specified whether its the left one, the right one, or both. Presumably it matters!

Both the above structures seem mysterious but I understand they both evolved from older cortex which sort of curled up over evolutionary time. 3-layer cortex rather than the 6-layer of the neocortex. I'd be glad to be corrected here.

The amygdala is associated with fear but it's concerned with desire too. Unwanted desires can be just as inconvenient as unwanted fears.

A classic source of confusion for me is the ubiquitous phrase 'brain circuits'. Is this a metaphor drawn from electronics, or what? 'Circuit' implies a loop but I assume they're just pathways.