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祖母细胞 相关链接: |
Recognizing famous people takes 1 neuron PASADENA, Calif., June 23 (UPI) -- A person's brain uses one neuron to recognize pictures of Jennifer Aniston, Halle Berry and Bill Clinton, California Institute of Technology researchers say. However, the Pasadena, Calif., researchers said they were not ready to claim they had found the so-called "grandmother cell" -- the single cell that recognizes one's own grandmother. Scientists have long argued about what happens in the brain when people recognize pictures, science journal Nature reported. Many have theorized it takes a host of cells to generate such recognition. Neurobiologist Jerome Lettvin coined the "grandmother cell" term to deride those who said it could take as little as a single brain cell to create recognition. However, California researchers say just one cell fired when eight people were shown repeated pictures of famous people such as Aniston, Berry and the former U.S. president. Devices were planted in the test subjects to monitor brain cell activity as part of a separate treatment for epilepsy.
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单个(特定的)脑神经有异乎寻常的记忆功能!
美国加州理工学院的研究人员称,人脑使用单个的神经元即可识别名人。 科学家们很久以来,认为人脑要识别物体需要调用大量的细胞。 神经生物学家热罗姆.莱特文则创造了“祖母细胞”这一字眼来嘲笑那些表示人脑只需调用少到单独的一个细胞来建立识别功能的人。 然而,加州的研究人员则证明了,8个实验对象在认出名人时,他们的大脑中只有一个细胞被激活。
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