- De www.edx.org
Fundamentals of Neuroscience, Part 1: The Electrical Properties of the Neuron
- Individualizado
- Acesso livre
- Certificado pago
- 5 sequências
- Introductive Level
Detalhes do curso
Programa de Estudos
Lesson1: The Resting Potential
The nervous system functions by sending electrical signals between neurons. To begin our study of the nervous system, we will focus on a single neuron 'at rest,' which has an electrical potential across its membrane. We will understand the ionic basis underlying this electrical potential, and how to calculate it ourselves.
Lesson 2: Passive Membrane Properties
Electrical signals between neurons can be sent through changes in their membrane potentials. In order to more deeply understand these electrical signals, we will first study the electrical properties of the neuron itself. We will examine the resistive and capacitive properties of the neuron, how these properties arise from biological factors, and how these properties influence how a neuron responds to electrical signals.
Lesson3: Action Potentials
In this lesson we will investigate one of the fundamental ways that neurons send electrical signals, through an all-or-nothing process called the action potential. The action potential is generated by the precise opening and closing of voltage-gated channels that cause specific changes to the neuron's membrane potential. We'll develop an in-depth understanding of the mechanisms of these channels and the ionic currents behind the action potential.
Lesson 4: Action Potential Propagation
Neurons send electrical signals through action potentials moving down their axons. In order to further develop our understanding of the way neurons generate and send electrical signals, we will integrate our knowledge of the electrical properties of the neuron and the action potential itself. This will allos us to understand how the nervous system has solved the problem of fast and reliable communication.
Lesson 5: DIY Labs
Seeing or measuring something with your own hands is often the best way to learn! We've spent a lot of time discussing the electrical properties of neurons, and along the way you've seen many different demonstrations. You can perform some of these experiments, as well as others we haven't shown yet, yourself, using an inexpensive piece of equipment known as a SpikerBox.
Pré-requisito
Some familiarity witharithmetic, basic algebra, and working with equations.
Instrutores
David Cox
Assistant Professor of Molecular and Cellular Biology, and Computer Science
Harvard University
Editor
A Universidade de Harvard, ou simplesmente Harvard, é uma universidade privada americana situada em Cambridge, uma cidade na zona de Boston, no estado de Massachusetts. Fundada em 28 de outubro de 1636, é a mais antiga instituição de ensino superior dos Estados Unidos.
Faz parte da Ivy League, um agrupamento informal de oito universidades da costa leste dos Estados Unidos. Mais de 70 dos seus estudantes ganharam prémios Nobel. Tem 2.497 professores, 6.715 alunos de graduação e 12.424 alunos de pós-graduação. Harvard atrai estudantes de todo o mundo (132 nacionalidades representadas em 2004).
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