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지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

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일정에 따라 마감일을 재설정합니다.

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권장: 16 hours...

영어

자막: 영어

100% 온라인

지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

유동적 마감일

일정에 따라 마감일을 재설정합니다.

완료하는 데 약 31시간 필요

권장: 16 hours...

영어

자막: 영어

강의 계획 - 이 강좌에서 배울 내용

1
완료하는 데 2시간 필요

Brain Excitements for the 21st Century

Welcome to synapses, neurons and brains!

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8 videos (Total 74 min), 5 readings
8개의 동영상
Welcome Words and Great Thinkers9m
The Blossoming of the Brain in the World7m
The Connectomics10m
Brainbow8m
Brain Machine Interface BMI16m
Optogenetics7m
Simulation of the Brain - Blue Brain Project8m
5개의 읽기 자료
About the Course10m
Course Staff10m
Course Information10m
How to Use Discussion Forums10m
Lecture Slides10m
2
완료하는 데 2시간 필요

The Materialistic Mind - Your Brain's Ingredients

This module's purpose is to acquaint you with "The materialistic mind – your brain’s ingredients". You will become intimately acquainted with the beauty and variety of neurons – the elementary building block/microchips of the brain. We will highlight a big controversy between two great anatomists (Ramon y Cajal and Camillo Golgi) who both received the Nobel Prize in 1906. They asked whether the neuron is a separate “independent” unit (like other cells in other tissues) or whether it is part of a continuum? We will next discuss the neuron as an input-output device and highlight a key property of the nervous system, namely that neurons connect to each other via a wonderful devise called “synapse”.

...
8 videos (Total 82 min), 1 reading, 1 quiz
8개의 동영상
The Neuron Doctrine9m
The Neuron as I/O Device Part I8m
The Axon14m
The Dendrite8m
Neuron Type11m
The Synapse14m
The Neuron as I/O Device Part II7m
1개의 읽기 자료
Lecture Slides10m
1개 연습문제
Brain Excitements for the 21st Century and The Materialistic Mind28m
3
완료하는 데 2시간 필요

Electrifying Brains –Passive Electrical Signals

In this module we will discuss the "Electrifying brain – passive electrical signals". We will show that neurons are electrical device and learn what enables neurons to become “electrifying”. Here we will describe only the passive (vs. active) electrical properties of neurons. We will show that, at the quiescent state, the difference in electric potential across the cell’s membrane is always negative inside the cell (“the “resting potential”); we next show that the membrane behaves like an electrical (resistance-capacitance) RC circuit and highlight the notion of “membrane time constant” and, consequently, the ability of neurons to summate (in time) successive (synaptic) inputs (“electrical memory”) – a fundamental mechanism utilized by the brain. We will also show that when the synapse is activated, it generates an analog electrical signal (“the post-synaptic potential”, PSP) in the receiving (“post-synaptic”) cell. Most interestingly, there are two types of synapses in the brain – “excitatory” and “inhibitory” – we will discuss how these two opposing signals interact in the receiving ``neuron. This module is more technical than the more descriptive first two lessons; we encourage those of you who are not familiar with basic electricity (resistance, capacitance, Ohms law and Kirchoff’s law) to read about these in the sources links for this week’s lecture.

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11 videos (Total 105 min), 1 reading, 1 quiz
11개의 동영상
The Voltage Equation for the Passive Cell9m
The Membrane Time Constant14m
Temporal Summation9m
The Resting Potential8m
The Synaptic Potential Part 19m
The Synaptic Conductance6m
The Synaptic Battery10m
The Synaptic Potential Part 28m
The Voltage Equation for the Synapse and EPSP and IPSP13m
Summary3m
1개의 읽기 자료
Sources for Lesson 310m
1개 연습문제
Electrifying Brains –Passive Electrical Signals22m
4
완료하는 데 2시간 필요

Electrifying Brains – Active Electrical Spikes

In this module we are covering "Electrifying brains – active electrical spikes". In the previous module we learned that: 1-neurons are electrical devices, 2 - that the membrane behaves as an RC circuit, 3 - that synapses operate by opening a new cross-membrane conductance attached with a battery. In the present module we will proceed to deal with the active electrical aspects of neurons. Synaptic inputs are the elementary (input) sources to neurons and, typically, many (excitatory) of them are required to summate (“temporal summation”) to generate a highly (“all or none”) output signal – the notorious spike (or “action potential”). In our current understanding, sensory, motor, emotional, etc., information is represented by a particular set of neurons that “fire” these spikes. So no movies or music in your brain only spikes representing (coding for) these movies and music. We will focus on the membrane mechanisms underlying the generation of the spike and in particular on the model of Hodgkin & Huxley for the spike which is probably the most fundamental and beautiful model in neuroscience. Hodgkin & Huxley received the Nobel Prize in 1963.

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5 videos (Total 80 min), 1 reading, 1 quiz
5개의 동영상
The All or None Spike and the Voltage Clamp11m
Membrane Currents Underlying the Spike14m
Modeling the Membrane Currents14m
The H&H Spike Model24m
1개의 읽기 자료
Lecture Slides10m
1개 연습문제
Electrifying Brains – Active Electrical Spikes26m
4.8
194개의 리뷰Chevron Right

29%

이 강좌를 통해 확실한 경력상 이점 얻기

18%

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Synapses, Neurons and Brains 의 최상위 리뷰

대학: AAug 14th 2017

Excellent teaching by Sir. He has created one more enthusiast in the journey of decoding Human Brain. Thank you Sir, getting my basics clear and this will help me to be better Neuro/AI researcher.

대학: DDSep 18th 2015

It is a very interesting and well-done course about neurobiology. Prof. Sedev has many interactive tasks and he tries to explain details as easy as possible. All in all it is understandable.

강사

Avatar

Idan Segev

Professor
Computational Neuroscience

히브리대학교 정보

Ranked among the top academic and research institutions worldwide, the Hebrew University of Jerusalem is Israel's leading university and premier research institution. Serving 23,000 students from 70 countries, the Hebrew University produces a third of Israel’s civilian research and is ranked 12th worldwide in biotechnology patent filings and commercial development. The Hebrew University was founded in 1918 by visionaries including Albert Einstein, Sigmund Freud, Martin Buber and Chaim Weizmann. It is located on three campuses in Jerusalem and a fourth in Rehovot. Visit the website at http://new.huji.ac.il/en. Join our online learners community at https://www.facebook.com/groups/hujimooc/. ...

자주 묻는 질문

  • 강좌에 등록하면 바로 모든 비디오, 테스트 및 프로그래밍 과제(해당하는 경우)에 접근할 수 있습니다. 상호 첨삭 과제는 이 세션이 시작된 경우에만 제출하고 검토할 수 있습니다. 강좌를 구매하지 않고 살펴보기만 하면 특정 과제에 접근하지 못할 수 있습니다.

  • 수료증을 구매하면 성적 평가 과제를 포함한 모든 강좌 자료에 접근할 수 있습니다. 강좌를 완료하면 전자 수료증이 성취도 페이지에 추가되며, 해당 페이지에서 수료증을 인쇄하거나 LinkedIn 프로필에 수료증을 추가할 수 있습니다. 강좌 콘텐츠만 읽고 살펴보려면 해당 강좌를 무료로 청강할 수 있습니다.

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