3 . Scientists have created a new tool that can turn people’s thoughts into words. It works by using an Artificial Intelligence (AI) program to translate brain activity into words. The scientists say the program could help people who cannot speak because of damage to the brain.
Alexander Huth, a team leader of the scientists, says, “We’re engaged in the study and are looking forward to the benefits the study can bring to people.”
The study involves two main parts. The first is a scanner (扫描仪) that allows the scientists to record brain activity. The second is an AI system that the researchers train to turn videos of brain activity into words.
To record brain activity without surgery (外科手术), Alexander and his team used a big machine called FMRI, which uses strong radio waves to create pictures showing which parts of the brain are active. FMRI can record the activity of the brain as it happens. To translate these recordings into words, they used an AI tool called “GPT-1”. It guesses which word is most likely to come next, based on the facts and details that came before.
The researchers first trained GPT-1 on lots of stories people had told about their lives. Next, they trained it to make connections between brain scans and spoken words. Then a test was done on three human volunteers to see whether the AI tool really worked. Each person spent sixteen hours in FMRI listening to stories. The people imagined the stories as they heard them, and FMRI recorded their brain activity. GPT-1 then used these recordings of brain activity to make connections between the words and ideas in the stories and the brain activity of the listeners.
Alexander found the words GPT-1 guessed were very similar to the words in the story that the people were listening to. Although the words weren’t exactly the same, they often carried the same meaning.
Alexander says that GPT-I is the first AI program to turn what people are thinking into words without brain surgery. The program isn’t something that can be easily used today, mainly because of the size and cost of FMRI.
1. Who is the AI program targeted at?
| A．Health experts studying human brains. | B．Volunteers performing medical service. |
| C．Doctors in need of advanced equipment. | D．Speech-disabled patients with brain injury. |
2. On what basis does GPT-1 translate brain activity into words?
| A．Previously gained information. | B．Processed radio waves. |
| C．Instructions from the scientists. | D．Videos of brain surgery. |
3. For what purpose was the test carried out?
| A．To improve the function of FMRI. | B．To confirm the weaknesses of the scanner. |
| C．To check the effectiveness of the AI system. | D．To measure the volunteers’ memory abilities. |
4. What can be the best title of the text?
| A．FMRI: A Powerful Device to Cure Brain Illness. |
| B．FMRI Has Been Used and Won Public Recognition. |
| C．Scientists Are Training AI to Read Human Thoughts. |
| D．Alexander: An Expert Devoted to Developing AI Language. |
