The “triune brain” - Deepstash
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The “triune brain”

This myth is the idea that the human brain evolved in three layers.

  • The deepest layer is known as the lizard brain and said to house our instincts.
  • The middle layer - the limbic system - allegedly contains emotions inherited from ancient mammals.
  • The topmost layer, named the neocortex, is uniquely human and supposedly lets us regulate our brutish emotions and instincts.

Modern research has revealed that the brain doesn't evolve in layers but is built from a manufacturing plan using the same neurons.

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Disease in the body and mind

This myth states that there's a clear dividing line between the disease of the body, such as cardiovascular disease, and the disease of the mind, such as depression. Philosopher René Descartes popularized the idea that body and mind are separate.

But neuro...

119

692 reads

Your whole brain reacts to events

The idea that your brain reacts to events in the world is a myth. The idea supposes that you go through your day with parts of your brain in the off position, but when something happens around you, those parts become active and light up with activity.

But the brain doesn't...

102

662 reads

Neurons have multiple tasks

Neurons have multiple tasks

It is a myth that specific parts of the human brain have specific psychological jobs. The myth claims that the brain has separate parts, each with a dedicated mental function - one part for vision, another for memory, etc.

Today, we know the brain is a massive netw...

111

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Runner and yoga aficionado.

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Myth: You have a lizard in your head

Myth: You have a lizard in your head

You may have heard that your passions lie deep in ancient parts of your brain that you apparently inherited from prehistoric reptiles. Or that your "rational brain" which sits on top of your "lizard brain" tries to moderate your desires.

The only animal with a lizard brain is a liz...

The human brain evolved ,too .

The human brain evolved ,too .

  • We don't have one brain in our head—we have three. We started with a “lizard brain” to keep us breathing, then added a brain like a cat’s, and then topped those with the thin layer of Jell-O known as the cortex—the third, and powe...

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