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Scientists target ‘biocomputing’ breakthrough with use of human brain cells

Proposal for ‘intelligence in a dish’ that can efficiently perform advanced tasks raises ethical concerns
Brain organoid seen through the microscope with neurons stained magenta

Scientists propose to develop a biological computer powered by millions of human brain cells that they say could outperform silicon-based machines while consuming far less energy.

The international team, led by Johns Hopkins University in Baltimore, published in the journal Frontiers in Science on Tuesday a detailed road map to what they call “organoid intelligence”. The hardware will include arrays of brain organoids — tiny three-dimensional neural structures grown from human stem cells — connected to sensors and output devices and trained by machine learning, big data and other techniques.

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