👤 whose
Whose theory of the ‘triune brain’ tried to explain the human brain as three evolutionary layers?
Quick Answer
Paul MacLean’s. He proposed the triune brain model in the mid-20th century.
The Full Story
Paul MacLean, an American neuroscientist and physician, introduced the triune brain model in the 1960s. He suggested that the human brain consists of three broad evolutionary layers: a reptilian complex, a paleomammalian system, and a neomammalian cortex. The model became popular because it offered a simple story about brain evolution and emotion. Modern neuroscience treats the theory as oversimplified, but it remains historically influential.
Key Facts
1.Paul MacLean (1913–2007)
2.Triune brain model developed in the 1960s
3.The theory divided the brain into three broad evolutionary layers
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"The brain model that became famous — and controversial"
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