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Reading minds isn't quite simple, but it may not be impossible, either.What if a brain scan could reveal your memories?

A team of British scientists recently did just that—they used brain scans to look at spatial(空间的) memory in four people.Spatial memory is the kind of memory you use to remember where you are.You use spatial memory to remember how to get from your house to school.People build spatial memory as they explore a new city or a new building and take in information about their surroundings.

The scientists asked each participant to sit down at a computer and wander through rooms.These virtual rooms contained images of objects, like clocks and doors, so that the people could know where they were.Each person was encouraged to explore the virtual space.

As the people became familiar with these rooms, their brain cells were taking notes of where things were, and how to get from one point to another.After perusing(详细考察) these rooms, the participants were instructed to go to a specific location within the rooms.At this point, the scientists took pictures of the subjects' brains using an instrument called FMRI (磁共振成像) .

As participants stared at the floor, the scientists took FMRI scans to measure brain activity.They repeated this process multiple times.After a few repetitions, the scientists could identify patterns in the subjects' brains.By looking at patterns on the brain scans, the scientists were able to read the spatial memory of the test subjects.

This experiment shows that it is possible to use FMRIs to gather some kinds of memories from people, but your secret thoughts and personal memories are safe—for now."It is not the case that we can put someone in a brain scanner and simply read their private thoughts," says one of the scientists who worked on the project.

57.Which of the following about spatial memory is TRUE?

A.It can make you remember things that you once did.

B.It can help you explore a new city or other places.

C.It only takes in information about your new places.

D.It lets you remember the places where you are.

58.From the passage we can infer the FMRI ___.

A.takes notes of what participants see in the room

B.takes pictures of participants' brains secretly

C.is very small but rather expensive

D.lets scientists know participants' brain activity

59.Why are our secret mind and private memories safe?

A.Because scientists can't read people's thoughts directly.

B.Because scientists can't understand all pictures taken by FMRIs,

C.Because FMRIs can't gather any memories from people.

D.Because FMRIs can't be completely reliable now.

60.The passage mainly tells us ____.

A.how scientist can read people's memories

B.a new kind of camera—FMRIs

C.a very important research

D.spatial memory and FMRJs