Mind Matters Natural and Artificial Intelligence News and Analysis

TagPaul D. MacLean

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Human brain model for education in laboratory.

Intelligence: A Thousand Brains — or a Thousand Theories?

What does the iconic mammalian neocortex do that equivalent systems in birds and octopuses can’t do? That’s not clear

Jeff Hawkins, inventor of PalmPilot (a smartphone predecessor) and co-founder of Numenta (2005), does not lack confidence. After an interview with him in connection with his new book, A Thousand Brains: A New Theory of Intelligence (Basic Books 2021), Will Douglas Heaven tells us at MIT Review, “Neuroscientist and tech entrepreneur Jeff Hawkins claims he’s figured out how intelligence works—and he wants every AI lab in the world to know about it”: He’s not the first Silicon Valley entrepreneur to think he has all the answers—and not everyone is likely to agree with his conclusions. But his ideas could shake up AI. Will Douglas Heaven, ““We’ll never have true AI without first understanding the brain”” at MIT Technology Review (March…

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pet lizard in a tank

No, You Do Not Have a Lizard Brain Inside Your Human Brain

The “lizard brain” is part of what science used to know about the brain that ain’t so

Lisa Feldman Barrett (pictured), Northeastern University psychology prof and author of Seven and a Half Lessons About the Brain (2020), is candid about the way new research has cast doubt on old saws in science: “As a neuroscientist, I see scientific myths about the brain repeated regularly in the media and corners of academic research.” The myth she targets in a recent article at Nautilus is the “triune brain,” the idea that our brain developed and continues to function in three successive layers. First developed by neuroscientist Paul D. MacLean (1913–2007) in the 1960s and set out in more detail in his 1990 book The Triune Brain in Evolution, the triune brain theory posited three successive layers of brain: ●…