One group developed in an "enriched" environment, which allowed the rats to interact with other rats, play with toys, and receive maze training.
一组老鼠在“充实”的环境中成长，这使得老鼠可以与其他老鼠互动、玩玩具，并接受迷宫训练。
When the rats detect the smell, they stop and rub their legs to indicate a sample is infected.
老鼠嗅到这种气味时会停下来，摩擦双腿，表明样本已被感染。
This suggests that the rats perceived the social robot as a genuine social being, says Quinn.
奎因称，这表明老鼠将社交机器鼠看作了真正的社交生物。
He put rats in mazes during the day and recorded what neurons fired in what patterns as the rats negotiated the maze.
白天，他把老鼠放在迷宫里，记录下老鼠在迷宫中穿行时，神经元以何种模式活动。
No doubt the rats ate birds' eggs too.
毫无疑问，老鼠也吃鸟蛋。
It is also more accurate—the rats are able to find more TB infections and, therefore, save more lives.
它也更准确——老鼠能够发现更多的结核病感染，从而拯救更多的生命。
They then presented the same samples to the rats.
之后也给了老鼠同样的样本。
They then presented the same samples to the rats.
然后他们把同样的标本给老鼠们识别。
The effects on the rats' behaviour were then measured.
然后再对老鼠的行为进行观测。
We've just got to keep the rats away from the server cables.
只是我们别让老鼠靠近服务器的电缆就是了。
Surprisingly, a healthy hippocampus didn't help the rats learn any better.
出人意料的是：保持海马区的健康对大鼠的学习能力没有丝毫好处。
After a few rounds, the rats would respond fearfully to the light, even if no shock came.
在几轮实验后，即使没有电击，老鼠也对光照产生畏惧。
They first recorded the activity of those brain cells while the rats ran in their mazes.
当老鼠在迷宫里奔跑时，他们第一次记录下了它们脑细胞内的活动。
Grain is often heaped on the ground and covered with a sheet: no wonder the rats get at it.
收获的粮食通常就堆在地上，用布盖起来：难怪老鼠会吃粮食。
Several residents reported that the rats had tried to attack them as they walked past the cars.
已经有数名当地居民向警方表示，他们从那些车辆旁边经过时，车内的老鼠曾经试图袭击他们。
Dr Szyf is hopeful: in the rats, at least, they were able to intervene and turn things around.
对此他充满希望：至少拿老鼠来说，他们可以干预并将甲基化逆转。
The Blanchards found that the rats responded to each kind of threat with a distinct set of behaviors.
布兰查德夫妇发现老鼠对不同种类的威胁表现出了不同的行为。
Normally rats like to explore their environment, but the rats in sugar withdrawal were too anxious to explore.
正常的大鼠喜欢探索它们的环境，但出现糖戒断症状的则显得过于焦虑以致无法探险。
The team attached electrodes to the rats’ brains, connected to two areas in the hippocampus, called CA1 and CA3.
该团队将电极固定到大鼠的脑中，连接到海马中的两个被称作CA1和CA3的区域。
"As the rats were learning, that reinforcement signal goes away, because you really don't need it," Graybiel says.
“当老鼠学会了，加强信号也不见了，因为真的不需要了，”布耶尔说。
When scientists drugged the rats to halt neuron signals between the two regions, the rats forgot the long-term memory.
当科学家给实验鼠服药，以暂停两个区域间神经信号的传递时，实验鼠便忘掉了长期记忆。
He put rats in mazes during the day, and recorded what neurons fired in what patterns as the rats negotiated the maze.
他白天把老鼠放在迷宫中，记录下老鼠通过迷宫时，有那些神经元以什么模式产生冲动。
Several residents reported that the rats had tried to attack them as they walked past the cars. No injuries were reported.
已经有数名当地居民向警方表示，他们从那些车辆旁边经过时，车内的老鼠曾经试图袭击他们。但目前尚未有人受到老鼠的伤害。
The team then injected an RNA molecule into the rats' amygdalas, the region of the brain involved in emotional responses.
随后该小组将一种RNA分子注射到老鼠大脑内参与情绪反应的杏仁核。
The team then injected an RNA molecule into the rats' amygdalas, the region of the brain involved in emotional responses.
随后该小组将一种RNA分子注射到老鼠大脑内参与情绪反应的杏仁核。
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