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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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Love and friendship
Never marry a man you love too much, and other views on romance in Sierra Leone
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Virtues and vices
Why Bennie tried to disappear, and what happened when he was found decades later
16 minutes
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History of technology
Curious singles and tech sceptics – what ‘computer dating’ looked like in 1966
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Cognition and intelligence
A father forgets his child’s name for the first time in this poetic reflection on memory
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Technology and the self
The commodified childhood – scenes from two sisters’ lives in the creator economy
14 minutes
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Anthropology
For an Amazonian female shaman, ayahuasca ceremonies are a rite and a business
30 minutes
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Sports and games
Havana’s streets become racetracks in this exhilarating portrait of children at play
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Spirituality
Through rituals of prayer, a monk cultivates a quietly radical concept of freedom
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Language and linguistics
Why Susan listens to recordings of herself speaking a language she no longer remembers
5 minutes