Suzana Herculano-Houzel

06. Action potentials can’t jump: synaptic transmission

Before you begin, ask yourself: Do you remember what an "action potential" is? How do you define it? What spreads faster, electricity or molecules? How come?

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02. Nervous systems are loops within the body

Before you begin, ask yourself: What does the word "loop" mean to you? How would you define "nervous system", and what does it do? What do you think is a "nerve"? Do you think sensations beget actions; actions beget sensations; both; neither?

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03. Closed loops produce behavior in tune with reality

Before you begin, ask yourself: How do you know what is "real"? Do your behaviors always start with a stimulus? How do you think movements happen, and how does your brain cause them? What does the word "representation" bring to your mind? And... why do you have photos on your phone - I mean, what do you have them for?

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04. Neuronal activity is loss of cell charge

Before you begin, ask yourself: What comes to mind when you hear the expression "neuronal activity"? That is, what are neurons doing when they are "active"?

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05. Neuronal activity is contagious excitation

Before you begin, ask yourself: How can neuronal activity be... "contagious"? Why would that be so important for what nervous systems do for the body?

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09. To each brain structure its own function

Before you begin, ask yourself: How do you think different parts of the brain have different functions? What makes them different from each other?

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11. The visceral network represents HOW you are doing

Before you begin, ask yourself: How do you sense HOW you feel? Which sense(s) do you use? And... what do you DO with that representation of how you feel that can possibly be so important for your life?

This content is for Crash Course in Neuroscience and Combo Subscription members only.
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