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2024考研英语同源外刊:人工智能使“读心术”成真?
After waking up, you may feel frustrated you cannot recall the dreams you had last night. Artificial intelligence may be able to help. Previously, there have been AI models that can turn text into images. They do this by learning from a large amount of data from both texts and images.
睡醒时，你可能会因为想不起昨晚做的梦而感到沮丧。人工智能或许能帮上忙。此前，人工智能模型已经可以将文本转换为图像。它们通过从文本和图像中学习大量数据来做到这一点。
This time, researchers from Osaka University in Japan have trained an AI system called Stable Diffusion to re-create images based on people's brain scans, Science magazine reported.
据《科学》杂志报道，这一次，日本大阪大学的研究人员训练了一个名为“稳定扩散”的人工智能系统，该系统可以根据人们的脑部扫描重建图像。
The researchers used an online data set provided by the University of Minnesota, which consisted of brain scans from four participants as they each viewed a set of 10.000 photos. The scans were recorded by functional magnetic resonance imaging.
研究人员使用了明尼苏达大学提供的在线数据集，其中包括四名参与者在观看一组1万张照片时的脑部扫描。扫描结果由功能性磁共振成像记录。
The AI then learned about the brain activities by analyzing changes in blood flow shown by the fMRI data — when a part of the brain is activated, more blood will flow to it. It then matched the brain activity with the photos.
然后，人工智能通过分析功能磁共振成像数据显示的血流变化来了解大脑活动——当大脑的部分区域被激活时，会有更多的血液流向这些区域。然后人工智能将大脑活动与照片进行匹配。
Through this method, AI learned how human brains would react when seeing different photos. Finally, the researchers tested the AI on additional brain scans from the same participants when they viewed photos of a toy bear, airplane, clock and train.
通过这种方法，人工智能了解了人类大脑在看到不同照片时的反应。研究人员在这些参与者观看玩具熊、飞机、时钟和火车的照片时，对他们进行了额外的脑部扫描，并测试了人工智能对这些扫描数据的反应。
If the person looked at an airplane, for example, the AI would use the brain scan data to create an image of a very blurry airplane. Then, it would turn on the previous "text-to-image" model and improve the quality of the image by feeding itself the keyword "airplane".
例如，如果一个人看着一架飞机，人工智能会使用大脑扫描数据来创建一个非常模糊的飞机图像。然后，它会打开之前的“文本到图像”模型，并通过输入关键字“飞机”来加强图像的质量。
The final images were "convincing" to about 80 percent accuracy, according to the researchers. The new study created a novel approach that incorporates text and images to "decipher the brain", Ariel Goldstein from Princeton University said.
据研究人员称，图像准确率约为80%，这一结果“令人信服”。普林斯顿大学的艾瑞尔·戈尔茨坦说，这项新研究创造了一种结合文本和图像来“破译大脑”的新方法。
In the future, scientists hope the technology can be used to record imagined thoughts and dreams or allow people to understand how differently other animals perceive reality.
在未来，科学家们希望这项技术可以用来记录想象中的想法和梦，或者让人们了解其他动物对现实的感知有何不同。
重难点词汇：
blurry [ˈblɜːri] adj. 模糊的;污脏的
incorporate [ɪnˈkɔːrpəreɪt] v. 纳入;收入;包含;包括;掺和;混合
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