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约翰斯·霍普金斯医学院和内布拉斯加大学科学家发现“致笨”病毒ATCV-1
约翰斯·霍普金斯医学院和内布拉斯加大学科学家发现“致笨”病毒ATCV-1
作者:乔颖 | 2014/11/12 10:18:45 | 浏览:2831 | 评论:0

  感觉自己变笨了?有可能哦。美国约翰斯·霍普金斯医学院和内布拉斯加大学最新研究发现,藻类病毒ATCV-1能够影响人类大脑并使人变笨。

  这种藻类病毒先前从未在健康人体内发现,研究人员发现它能够影响包括视觉处理和空间意识在内的大脑认知功能。

  研究人员在一项咽喉微生物研究中偶然发现了这种病毒,而健康人咽喉中的DNA与ATCV-1的DNA相匹配。参与研究的90名志愿者中,40人的ATCV-1检测呈阳性,与检测呈阴性的人相比,他们在视觉处理的速度和准确度测评以及注意力测试中的表现差。

'Stupid virus':Did scientists just find out what makes people dumb and dumber?

约翰斯·霍普金斯医学院和内布拉斯加大学科学家发现“致笨”病毒ATCV-1
This image released by Universal Pictures shows Jim Carrey, left, and Jeff Daniels in a scene from "Dumb and Dumber To." (Universal Pictures, Hopper Stone | AP)
 
约翰斯·霍普金斯医学院和内布拉斯加大学科学家发现“致笨”病毒ATCV-1 By Geoff Herbert
约翰斯·霍普金斯医学院和内布拉斯加大学科学家发现“致笨”病毒ATCV-1

"Stupid is as stupid does," but new research suggests there may be a reason for that.

Newsweek reports scientists at the Johns Hopkins School of Medicine and the University of Nebraska have identified a virus, known as ATCV-1, that appears to inhibit humans' mental capacity. As a result, some are calling it the "stupid virus."

According to the publication, researchers were studying throat microbes when they found traces of ATCV-1 in human DNA samples. The chlorovirus previously was only known to infect a species of green algae, so you can imagine their surprise when they found people with it, too.

Dr. Robert Yolken his team put together a group of 92 healthy volunteers for a study on cognitive function. They discovered the virus was present in 43.5 percent of the subjects, and those infected performed roughly 10 percent worse on analytical tests.

Another test found mice deliberately infected with the virus solved puzzles more slowly.

Newsweek reports researchers concluded ATCV-1 is linked to lower attention spans and decreased spatial awareness, and may cause infected people to be less intelligent. The results were compared to other variables and no differences were found for sex, education level, income, race or cigarette smoking.

Though these findings were first published in the Proceedings of the National Academy of Sciences(PNAS)two weeks ago, ATCV-1's new nickname is leading many to wonder if a "stupid virus" can explain why some people are dumb(and dumber).

But Forbes points out no scientists are actually using a subjective word like "stupid." Purdue University virologist David Sanders told the magazine patients' samples may have been contaminated with the algal virus, similar to a previous "disaster" that incorrectly linked another virus to chronic fatigue syndrome years ago.

Sanders also questioned how the experiments were reviewed and said he'd like to see more tests before buying into a "stupid virus."

There's no word yet on testing for whether or not stupidity is contagious, though. We may have to wait for this weekend's "Dumb and Dumber To" box office numbers.

 

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