抑制性神经元

We humans dont always make the best choices. But now a study in the journal Neuron demonstrates that maybe our brains do make the best possible decisionsbut only if its done unconsciously. Alex Pouget at the University of Rochester takes a look at un

发表于:2018-12-02 / 阅读(178) / 评论(0) 分类 Scientific American(十二)月

第六篇 神经系统 Section 6 Nervous System 第一章 总论 Chapter 1 Introduction association neuron 联络神经元 astrocyte 星形胶质细胞 axon 轴突 bipolar neuron 双极神经元 central nervous system 中枢神经系统 chemical synapse 化学突触 cortex 皮质 dendrite

发表于:2018-12-05 / 阅读(338) / 评论(0) 分类 医学英语

内脏神经系统 Visceral Nervous System abdominal aortic plexus 腹主动脉丛 aorticorenal ganglion 主动脉肾神经节 autonomic nervous system 自主神经系统 cardiac plexus 心丛 celiac ganglia 腹腔神经节 celiac plexus 腹腔丛 cervicothoracic ganglion 颈胸神经节

发表于:2018-12-05 / 阅读(387) / 评论(0) 分类 医学英语

Not many scientific studies begin like this: Many hours of watching YouTube clips. Trying to find as many yawns as possible. But for Andrew Gallup, an evolutionary psychologist who studies yawning at the State University of New York, it was all in a

发表于:2018-12-24 / 阅读(168) / 评论(0) 分类 2016年Scientific American(十)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. You probably remember exactly what you were doing when you first heard the news on 9/11. Thats because the brain has ways to file information so that thi

发表于:2018-12-24 / 阅读(179) / 评论(0) 分类 Scientific American(一)月

第三章 神经系统的传导通路 Chapter 3 Neural Pathways acoustic radiation 听辐射 adrenergic pathway 肾上腺能通路 aminergic pathway 胺能通路 auditory pathway 听觉传导通路 central radiation of thalamus 丘脑中央辐射 chemical pathways 化学通路 cholinergic

发表于:2018-12-30 / 阅读(401) / 评论(0) 分类 医学英语

What Happens When You Lose Neurons? When you were born, almost all of the one trillion neurons, or nerve cells, in your brain had already formed. But those neurons still had a lot of growing to do. As kids grow, neurons in the brain branch out and ma

发表于:2018-12-31 / 阅读(134) / 评论(0) 分类 英语听力文摘 English Digest

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-02 / 阅读(269) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Senior citizens across the world love keeping their brains busy with crossword puzzles, sudoku or word jumbles. These brain-teasers actually help keep neurons firing

发表于:2019-01-08 / 阅读(219) / 评论(0) 分类 Scientific American(十)月

A friends four year old daughter recently complained to me about how badly her mosquito bite itched. She was about to burst into tears. The fact that an uncomfortable itchy sensation can drive many of us to distraction led many scientists to believe

发表于:2019-01-08 / 阅读(189) / 评论(0) 分类 Scientific American(八)月

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-08 / 阅读(178) / 评论(0) 分类 Scientific American(五)月

DAVID GREENE, HOST: Scientists have taken one more small step toward understanding what makes the human brain unique. As NPR's Jon Hamilton reports, they've identified a type of brain cell that exists in people but not in rodents. JON HAMILTON, BYLIN

发表于:2019-01-17 / 阅读(199) / 评论(0) 分类 2018年NPR美国国家公共电台8月

When you use your top-down attention to focus on something, your brain activates inhibitory mechanisms to block out competing stimuli. It can't do this forever, though; these mechanisms eventually tire just like the muscles in our body, and this lead

发表于:2019-02-11 / 阅读(133) / 评论(0) 分类 留美老师带你每日说英文
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