“our brain has billions of nerve ceils. These send signals through the spinal cord （脊髓）to the muscles to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles,” Tavella says.

　　“Our system allows disabled people to communicate with external world and also to control devices.”

　　The researchers designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.

　　Prof. Millan, the team leader, says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication, and controlling devices. One example is this wheelchair.”

　　He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can benefit front. And the other is to guarantee that they can use the technology over long periods of time.

　　1.BCI is a technology that can

　　A. help to update computer systems

　　B. link the human brain with computers

【2016届高考英语二轮复习阅读理解一百四十集选练：（33）】相关文章：

★ 2016高考英语听力提升素材

★ 2016届高考英语二轮复习阅读理解一百四十集选练：（58）

★ 【三维设计】2017届高考英语（江苏专用）二轮复习课件：必修3 Unit 3《Back to the past》

★ 【三维设计】2017届高考英语（江苏专用）二轮复习课件：必修3 Unit 2《Language》

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：3（含解析）

★ 【浙江专用】2014届高考英语一轮复习课时作业(三十九)选修8Unit 4《Pygmalion》

★ 2014届高考英语一轮复习课时作业(十一)必修2Module 5《Newspapers and Magazines》（外研版）

★ 2017届高考英语二轮复习课时训练：8（含解析）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (47)

★ 【人教版】2014届高考英语一轮复习指导考点针对练：选修7 unit1《Living well》