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?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

13. Associate networks make behaviors flexible

Before you begin, ask yourself: How can your behavior be so much more than simply responding to stimuli? Can you think of examples of how your behavior is flexible and complex? At this point, how do you imagine that your brain makes it so?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

14. The self-reference network makes you WHO you are

Before you begin, ask yourself: What is "you"? How do you know when something happens to YOU, or to somebody else? How do "you" come to be? 

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

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?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

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?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

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"?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

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?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

07. Actions potentials spread like wildfire – I mean, electricity

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?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.

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?

This content is for Crash Course in Neuroscience and Crash Course in Neuroscience + The Neurocientist on Call members only.
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