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The UK research scientist Susan Greenfield believes that neuronal assemblies – coalitions of millions of brain cells that activate and disband over a scale of millimetres and milliseconds – could be a Rosetta Stone for explaining shifts and differences in states of consciousness. Although research about these cellular systems is still in its early stages, Greenfield thinks that further study could help neuroscientists bridge the chasm between the local neural networks and large brain regions that currently characterise our framework for perception. And, as she proposes in this interview with Robert Lawrence Kuhn for the PBS series Closer to Truth (2000-), bridging this gap might be key to unlocking some of the foremost puzzles of consciousness – from sleep, dreams and wakefulness to mental illness.
Video by Closer to Truth
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Rituals and celebrations
A beginner’s guide to a joyful Persian tradition of spring renewal and rebirth
3 minutes
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Love and friendship
Love looks a bit different for a chain-smoking couple in a small apartment
11 minutes
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Work
A Swedish expat in the Philippines wonders: what’s up with people sleeping at work?
14 minutes
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Biography and memoir
The unique life philosophy of Abdi, born in Somalia, living in the Netherlands
29 minutes
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Cognition and intelligence
What’s this buzz about bees having culture? Inside a groundbreaking experiment
8 minutes
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Earth science and climate
The only man permitted in Bhutan’s sacred mountains chronicles humanity’s impact
22 minutes
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The ancient world
An ancient Roman’s hilarious (and perhaps relatable) response to a social snub
2 minutes
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Love and friendship
After his son’s terrorist attack, Azdyne seeks healing – and his granddaughter
25 minutes
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Art
More than breathtaking, ‘The Birth of Venus’ signalled an aesthetic revolution
19 minutes