Boa noite, andei a fazer umas pesquisas pela NET e encontrei pelo menos para mim, um tema muito interessante e acho que pode ajudar muitas pessoas que sofrem da conhecida doença de "Alzheimer". Ora foi descoberto nos Estados Unidos uma forma de tentar reavivar tecido morto, de um cérebro. Como funciona? um pequeno circuito electrónico, envia descargas eléctricas a zonas "mortas" do cérebro e permite a essas mesmas zonas tornarem-se de novo activas. Escolhi também este tema, porque falámos há pouco tempo numa aula de IA "Inteligência Artificial" sobre o futuro da IA e em que áreas predominava, neste artigo podemos ver que a IA, está cada vez mais intrínsseca na área da saúde e pode ajudar muitas pessoas a ter uma vida melhor. Espero sinceramente que esta descoberta venha a dar frutos e possa ser um sucesso na cura desta tão desgostosa doença.
In wet lab 412C on the University of Southern California’s Los Angeles campus, Vijay Srinivasan is poking a long, evil-looking needle at a slice of rat brain about half the size of a fingernail. All around him, coils of cable are piled near hulking microscopes. Glass vials and fluid-filled plastic dishes compete for space with spare keyboards and computer chips. The place looks more like a computer-repair shop than a world-class laboratory.“Watch this,” says Srinivasan, a design engineer working with USC’s Center for Neural Engineering. A thin wire runs between the needle and a tiny silicon chip hooked up to a boxy signal transmitter. He flips a switch, and a series of small waves shimmers across a nearby screen—waves that mean exactly zilch to me. Watch what? I wonder.
Srinivasan explains that the chip is sending electric pulses through the needle into the brain slice, which is passing them on to the screen we’re watching. “The difference in the waves’ modulation reflects the signals sent out by the brain slice,” he says. “And they’re almost identical in frequency and pattern to the pulses sent by the chip.” Put more simply, this iron-gray wafer about a millimeter square is talking to living brain cells as though it were an actual body part.
Ted Berger, Srinivasan’s boss and the mastermind behind the tangle of coils and electrodes, has arranged this demonstration to provide a small but profound glimpse into the future of brain science. The chip’s ability to converse with live cells is a dramatic first step, he believes, toward an implantable machine that fluently speaks the language of the brain—a machine that could restore memories in people with brain damage or help them make new ones.
Remedying Alzheimer’s disease would, if Berger’s grand vision plays out, be as simple as upgrading a bit of hardware. No more complicated drug regimens with their frustrating side effects. A surgeon simply implants a few computerized brain cells, and the problem is solved.
Down the hall, Berger rises to greet me in his office. An imposing man with a shock of gray hair, Berger, 56, has the thick build of an aging athlete and the no-nonsense manner of a CEO. Can a chunk of silicon really stand in for brain cells? I ask. “I don’t need a grand theory of the mind to fix what is essentially a signal-processing problem,” he says. “A repairman doesn’t need to understand music to fix your broken CD player.”
Srinivasan explains that the chip is sending electric pulses through the needle into the brain slice, which is passing them on to the screen we’re watching. “The difference in the waves’ modulation reflects the signals sent out by the brain slice,” he says. “And they’re almost identical in frequency and pattern to the pulses sent by the chip.” Put more simply, this iron-gray wafer about a millimeter square is talking to living brain cells as though it were an actual body part.
Ted Berger, Srinivasan’s boss and the mastermind behind the tangle of coils and electrodes, has arranged this demonstration to provide a small but profound glimpse into the future of brain science. The chip’s ability to converse with live cells is a dramatic first step, he believes, toward an implantable machine that fluently speaks the language of the brain—a machine that could restore memories in people with brain damage or help them make new ones.
Remedying Alzheimer’s disease would, if Berger’s grand vision plays out, be as simple as upgrading a bit of hardware. No more complicated drug regimens with their frustrating side effects. A surgeon simply implants a few computerized brain cells, and the problem is solved.
Down the hall, Berger rises to greet me in his office. An imposing man with a shock of gray hair, Berger, 56, has the thick build of an aging athlete and the no-nonsense manner of a CEO. Can a chunk of silicon really stand in for brain cells? I ask. “I don’t need a grand theory of the mind to fix what is essentially a signal-processing problem,” he says. “A repairman doesn’t need to understand music to fix your broken CD player.”
Cumprimentos,
.:. Kr3at0r .:.
2 comentários:
Kr3ator isso do IA é mt á frente e possivelmente bom para resolver alguns problemas como o exemplo que deste.. mas..existe o reverso da medalha.. que consequencias negativas poderao surgir?
A IA é uma área mt interessante e que vai ser muito explorada no futuro, tanto para o bem como para o mal. Como tu mencionaste existe realmente o reverso da medalha que é a parte em que a IA pode ser explorada para outros fins, refiro-me claro para a indústria da guerra. Já se produzem robots para combates, aviões telecomandados espiões e também para abater alvos. Os sistemas de navegação dos mísseis estão cada vez mais apurados e muitas outras tecnologias que vão recorrer á IA para progredirem e darem passos importantes. Achei muito importante o teu comentário e o teu interesse. Fica bem
.:. Kr3at0r .:.
Enviar um comentário