full transcript

From the Ted Talk by Neil Burgess: How your brain tells you where you are

Unscramble the Blue Letters

So we're going to imagine we're recording from a single noerun in the hippocampus of this rat here. And when it fires a little spike of electricity, there's going to be a red dot and a click. So what we see is that this neuron knows whenever the rat has gone into one particular palce in its environment. And it sgalins to the rest of the brain by sending a little electrical spkie. So we could show the firing rate of that neuron as a function of the animal's location. And if we record from lots of different neurons, we'll see that different neurons fire when the animal goes in different parts of its environment, like in this square box shown here. So together they form a map for the rest of the brain, tlinleg the biran colnnatliuy, "Where am I now within my environment?"

Open Cloze

So we're going to imagine we're recording from a single ______ in the hippocampus of this rat here. And when it fires a little spike of electricity, there's going to be a red dot and a click. So what we see is that this neuron knows whenever the rat has gone into one particular _____ in its environment. And it _______ to the rest of the brain by sending a little electrical _____. So we could show the firing rate of that neuron as a function of the animal's location. And if we record from lots of different neurons, we'll see that different neurons fire when the animal goes in different parts of its environment, like in this square box shown here. So together they form a map for the rest of the brain, _______ the _____ ___________, "Where am I now within my environment?"

Solution

  1. signals
  2. telling
  3. spike
  4. brain
  5. place
  6. neuron
  7. continually

Original Text

So we're going to imagine we're recording from a single neuron in the hippocampus of this rat here. And when it fires a little spike of electricity, there's going to be a red dot and a click. So what we see is that this neuron knows whenever the rat has gone into one particular place in its environment. And it signals to the rest of the brain by sending a little electrical spike. So we could show the firing rate of that neuron as a function of the animal's location. And if we record from lots of different neurons, we'll see that different neurons fire when the animal goes in different parts of its environment, like in this square box shown here. So together they form a map for the rest of the brain, telling the brain continually, "Where am I now within my environment?"

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
place cells 10
grid cells 6
firing pattern 4
place cell 3
individual neurons 2
square box 2
electrical activity 2
video game 2
cell fires 2
extended buildings 2
stored pattern 2

Important Words

  1. animal
  2. box
  3. brain
  4. click
  5. continually
  6. dot
  7. electrical
  8. electricity
  9. environment
  10. fire
  11. fires
  12. firing
  13. form
  14. function
  15. hippocampus
  16. imagine
  17. location
  18. lots
  19. map
  20. neuron
  21. neurons
  22. parts
  23. place
  24. rat
  25. rate
  26. record
  27. recording
  28. red
  29. rest
  30. sending
  31. show
  32. shown
  33. signals
  34. single
  35. spike
  36. square
  37. telling