The scientists monitored the dreamers with both magnetic resonance imaging and near-infrared spectroscopy to see patterns of heat in their subject's heads, which gives a picture of brain activity.
科学家们同时利用功能性核磁共振成像和近红外光谱技术来监测受试者，观察他们大脑的升温模式，以此获得大脑的活动图像。
Infrared devices read heat by absorbing infrared light, converting it into a grid of video signals and creating a picture the viewer can see.
红外线探测仪通过吸收红外线感应热度，将红外线转变为一系列视频信号，然后形成可视的图像。
Infrared devices read heat by absorbing infrared light, converting it into a grid of video signals and creating a picture the viewer can see.
红外线探测仪通过吸收红外线感应热度，将红外线转变为一系列视频信号，然后形成可视的图像。
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