Scientists have taken a major step toward the creation of artificial intelligence - not in a robot or a silicon chip, but in a test tube.
Researchers at the California Institute of Technology have created a circuit of interacting molecules that can recall memories based on incomplete DNA patterns, just like the human brain.
'The brain is incredible,' says Lulu Qian, a Caltech senior postdoctoral scholar in bioengineering.
'It allows us to recognize patterns of events, form memories, make decisions, and take actions.
'So we asked, instead of having a physically connected network of neural cells, can a soup of interacting molecules exhibit brainlike behavior?'
Consisting of four artificial neurons made from 112 distinct DNA strands, the researchers' neural network plays a mind-reading game in which it tries to identify a mystery scientist.
The researchers 'trained' the neural network to 'know' four scientists, whose identities are each represented by a specific, unique set of answers to four yes-or-no questions, such as whether the scientist was British.
Mail Online
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http://www.dailymail.co.uk/sciencetech/article-2017349/End-Silicon-Age-Researchers-create-artificial-neural-network-DNA.html?ITO=1490
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