Scientists will replicate human brain in 10 years
(Shahzad Shameem, Abbottabad)
Within 10 years, scientists
will be able to create a model that replicates the functions of the human brain
says a neuroscientist.
“I absolutely believe it is technically and biologically possible. The only
uncertainty is financial. It is an extremely expensive project and not all is
yet secured,” says Henry Markram, professor at the Brain Mind Institute in
Switzerland.
“The brain is of course extremely complex because it has trillions of synapses,
billions of neurons, millions of proteins, and thousands of genes. But they are
still finite in number,” says Markram.
“Today’s technology is already highly sophisticated and it allows us to reverse
engineer the brain rapidly.” An example of the capability already in place is
that today’s robots can do screenings and mappings tens of thousands of times
faster than humans.
Another hurdle on the path to a model human brain is that 100 years of
neuroscience discovery has led to millions of fragments of data and knowledge
that have never been brought together and exploited fully.
“The biggest challenge is to understand how electrical-magnetic-chemical
patterns in the brain convert into our perception of reality. We think we see
with our eyes, but in fact most of what we ‘see’ is generated as a projection by
your brain. So what are we actually looking at when we look at something
‘outside’ us?”
For Markram, the most exciting part of his research is putting together the
hundreds of thousands of small pieces of data that his lab has collected over
the past 15 years, and seeing what a microcircuit of the brain looks like. “When
we first switched it on it already started to display some interesting emergent
properties. But this is just the beginning because we know now that it is
possible to build it.
“As we progress we are learning about design secrets of our brains which were
unimaginable before. In fact the brain uses some simple rules to solve highly
complex problems and extracting each of these rules one by one is very
exciting.”
“For example, we have been surprised at finding simple design principles that
allow billions of neurons to connect to each other. I think we will understand
how the brain is designed and works before we have finished building it,”
Markram says.
The opportunities for this neuroscience research challenge are immense, explains
Markram, according to an AlphaGalileo Foundation release. “A brain model will
sit on a massive supercomputer and serve as a kind of educational and diagnostic
service to society. As the industrial revolution in science progresses we will
generate more data than anyone can track or any computer can store, so models
that can absorb it are simply unavoidable.”—