2024年5月23日发(作者：满诗蕾)
2023名校版高考英语阅读理解精
选训练含答案
How can people speak their mind without saying anything?
This is a question that scientists have aimed to answer for a long
chers recently brought an upgraded device that can
translate users’ brain waves into daily speech.
Previously,the team led by Edward Chang at the University of
California, San Francisco, developed an Al-based system that can
identify up to 50 commonly used words based on the participant’
s brain waves. The participant was a paralyzed(瘫痪的)man who
had been implanted with 16 electrodes(电极)under his skull.
According to their paper published in November, the team
upgraded the system which can now translate thoughts into
complete sentences on a computer screen.
Their tests showed that the device could decode silently
spoken letters from a 1,152-word vocabulary at a speed of about
29 characters per minute. The accuracy was up to 94 percent. “It
shows strong promise for restoring communication by tapping
into the brain’s natural speech machinery,”Chang said to the
university’s news website.
However, this method can still be problematic since users still
need to undergo surgery. Scientists at the University of Texas, US,
have tried to translate people’s thoughts without even touching
their heads, reported Live Science.
The new technique is called fMRI，or functional magnetic
resonance imaging(功能性磁共振成像). It’s a safer way of
“reading”brain activity. Active brain cells have more oxygen. By
tracking these cells, scientists can translate brain activity.
The team asked participants to listen to16 hours of radio
shows while scanning their brains. Then they used a computer
algorithm(算法)to create a story based on the fMRI recording. It
matched the radio shows pretty well.
Also, the algorithm could basically explain the story of a silent
movie that the participants watched. The team aims to develop
this technology so that it can be used in brain-computer
interfaces(脑机接口)designed for people who cannot speak or
type.
12. What do we know about the device mentioned in Para 2?
2024年5月23日发(作者：满诗蕾)
2023名校版高考英语阅读理解精
选训练含答案
How can people speak their mind without saying anything?
This is a question that scientists have aimed to answer for a long
chers recently brought an upgraded device that can
translate users’ brain waves into daily speech.
Previously,the team led by Edward Chang at the University of
California, San Francisco, developed an Al-based system that can
identify up to 50 commonly used words based on the participant’
s brain waves. The participant was a paralyzed(瘫痪的)man who
had been implanted with 16 electrodes(电极)under his skull.
According to their paper published in November, the team
upgraded the system which can now translate thoughts into
complete sentences on a computer screen.
Their tests showed that the device could decode silently
spoken letters from a 1,152-word vocabulary at a speed of about
29 characters per minute. The accuracy was up to 94 percent. “It
shows strong promise for restoring communication by tapping
into the brain’s natural speech machinery,”Chang said to the
university’s news website.
However, this method can still be problematic since users still
need to undergo surgery. Scientists at the University of Texas, US,
have tried to translate people’s thoughts without even touching
their heads, reported Live Science.
The new technique is called fMRI，or functional magnetic
resonance imaging(功能性磁共振成像). It’s a safer way of
“reading”brain activity. Active brain cells have more oxygen. By
tracking these cells, scientists can translate brain activity.
The team asked participants to listen to16 hours of radio
shows while scanning their brains. Then they used a computer
algorithm(算法)to create a story based on the fMRI recording. It
matched the radio shows pretty well.
Also, the algorithm could basically explain the story of a silent
movie that the participants watched. The team aims to develop
this technology so that it can be used in brain-computer
interfaces(脑机接口)designed for people who cannot speak or
type.
12. What do we know about the device mentioned in Para 2?