The goal of the 'brain in a bottle' was to produce a biological tool that can be used to investigate the workings of the brain, better understand brain diseases, and test out new drugs.
Other experts described the work as "audacious", "exciting" and "stunning".
One predicted the future creation of a simple animal-like brain that could be linked to sense organs and had the ability to learn.
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The Tory peer and former Marks & Spencer chief has been named as chairman of the 'In Campaign'.
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Cloud and showery rain may linger across the far northwest throughout Saturday.