课程信息
4.6
72 个评分
9 个审阅
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100% 在线

立即开始,按照自己的计划学习。
可灵活调整截止日期

可灵活调整截止日期

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中级

中级

完成时间(小时)

完成时间大约为7 小时

建议:7 weeks of study, 1-3 hours/week...
可选语言

英语(English)

字幕:英语(English)
100% 在线

100% 在线

立即开始,按照自己的计划学习。
可灵活调整截止日期

可灵活调整截止日期

根据您的日程表重置截止日期。
中级

中级

完成时间(小时)

完成时间大约为7 小时

建议:7 weeks of study, 1-3 hours/week...
可选语言

英语(English)

字幕:英语(English)

教学大纲 - 您将从这门课程中学到什么

1
完成时间(小时)
完成时间为 1 小时

Week 1

A brief history of extracellular measurements, and an example of such a recording. The goal is to understand the amplitudes and time variation of such measurements, as well as learn about some interesting and useful historical events....
Reading
3 个视频 (总计 20 分钟), 3 个阅读材料, 1 个测验
Video3 个视频
Welcome7分钟
The First Extracellular Measurements5分钟
Observing Wave Forms Between Human Hands7分钟
Reading3 个阅读材料
Course Overview10分钟
Assessments, Grading and Certificates10分钟
Week 1 Slides10分钟
Quiz1 个练习
120分钟
2
完成时间(小时)
完成时间为 2 小时

Week 2

A presentation of the cylindrical fiber model of a nerve. The goal is to see how this geometrically simple model of a nerve actually is sufficient to explain complex bioelectric events within and around electrically active tissue. One learns that currents are driven forward by voltages across cell membranes,. Current loops are created, with some parts of the current loop inside and other parts outside the active cells. Electrical potentials are created by the current loops, and are positive when these are approaching, negative when they are receding. In so doing they form the basis of all extracellular wave forms....
Reading
9 个视频 (总计 44 分钟), 3 个阅读材料, 1 个测验
Video9 个视频
Geometry6分钟
Left or right side stimulation5分钟
Simultaneous stimulation model2分钟
Definitions and questions6分钟
Origin in the membrane6分钟
Big loops as well as small4分钟
Approaching wave forms5分钟
Departing wave forms3分钟
Observations4分钟
Reading3 个阅读材料
Cylinderical Fiber Model Slides9分钟
Current Loops Slides10分钟
Current Loops and the Extracellular Waveforms Slides10分钟
Quiz1 个练习
224分钟
3
完成时间(小时)
完成时间为 1 小时

Week 3

Notable and useful aspects of extracellular wave forms are their changes in shape. What causes such changes? Two illuminating examples are studied, one that does not, and then another that does....
Reading
7 个视频 (总计 33 分钟), 3 个阅读材料, 1 个测验
Video7 个视频
Vm and current inside3分钟
Vm patterns3分钟
Current loops3分钟
Experimental setup, cardiac Purkinje6分钟
Stimulation at the left or right3分钟
Stimulation at both ends, collision5分钟
Reading3 个阅读材料
When do Wave Shapes Change? Slides10分钟
Simultaneous Left and Right Stimulation Slides10分钟
Experimental Data Slides10分钟
Quiz1 个练习
324分钟
4
完成时间(小时)
完成时间为 1 小时

Week 4

Weeks 1 to 3 present some intriguing concepts and explain them with drawings and sketches. Do the wave forms so drawn have any connection with real tissue? Indeed they do. The goal of this week is to examine some specific experimental wave forms that were measured in cardiac Punkinje fibers, and to compare them those anticipated in earlier weeks.Week 4 is the end of the standard course. The remaining weeks are for honors study....
Reading
4 个视频 (总计 17 分钟), 1 个阅读材料, 1 个测验
Video4 个视频
Two-fiber model, asynchronous2分钟
Experimental findings6分钟
Multiphasic summary3分钟
Reading1 个阅读材料
Multiphasic Recordings Slides10分钟
Quiz1 个练习
424分钟
4.6
9 个审阅Chevron Right

热门审阅

创建者 AJApr 15th 2018

Great follow up course to the previous within the installment regarding bioelectricity. Taught me quite a lot and am looking forward to further releases to the series if they are in the works.

创建者 PWMar 8th 2017

Having been out school for over 30 years this was a very challenging but rewarding course for myself. I'm glad i took it

讲师

Avatar

Dr. Roger Barr

Anderson-Rupp Professor of Biomedical Engineering and Associate Professor of Pediatrics
Biomedical Engineering, Pediatrics

关于 杜克大学

Duke University has about 13,000 undergraduate and graduate students and a world-class faculty helping to expand the frontiers of knowledge. The university has a strong commitment to applying knowledge in service to society, both near its North Carolina campus and around the world....

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