地域社会とマスメディア

上記の広告は2週間以上更新のないブログに表示されています。 新しい記事を書くことで広告が消せます。  

False memoryThis light-induced freezing suggested that the animals were actually recalling the memory of being shocked. The mice apparently perceived this replay of a fearful memory ― but the memory was artificially reactivated. “Our results show that memories really do reside in very specific brain cells,” Liu says, “and simply by reactivating these cells by physical means, such as light, an entire memory can be recalled.”Referring to the 17th-century French philosopher who wrote, “I think, therefore I am,” Tonegawa says, “Ren? Descartes didn’t believe the mind can be studied as a natural science. He was wrong. This experimental method is the ultimate way of demonstrating that mind, like memory recall, is based on changes in matter.”“This remarkable work exhibits the power of combining the latest technologies to attack one of neurobiology’s central problems,” says Charles Stevens, a professor in the
Molecular Neurobiology Laboratory at the Salk Institute who was not involved in this research. “Showing that the reactivation of those nerve cells that were active during learning can reproduce the learned behavior is surely a milestone.”The method may also have applications in the study of neurodegenerative and neuropsychiatric disorders. “The more we know about the moving pieces that make up our brains,” Ramirez says, “the better equipped we are to figure out what happens when brain pieces break down.”Other contributors to this study were Karl Deisseroth of Stanford University, whose lab developed optogenetics, and Petti T. Pang, Corey B. Puryear and Arvind Govindarajan of the RIKEN-MIT Center for Neural Circuit Genetics at the Picower Institute for Learning and Memory at MIT. The work was supported by the National Institutes of Health and the RIKEN Brain Science Institute.


  

腹ペコなり 久々の空腹感だな 今日は、鶏ゴボウもやし飯と、もやし玉ねぎ赤だしだぁ～ いたらきあ～っス もぐもぐ ぼぇ