Cognition Lecture 17 - Coupling

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12 Terms

1
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Inter-Subject Correlation (ISC)

Correlation between the same voxel in our brains

<p>Correlation between the same voxel in our brains</p>
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Communicating a Story

My mind to your mind, my thoughts to your thoughts

  • Seeing the the brain of a speaker and listener align in specific places

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Activity in One Brain Predicts the Other

My mind to your mind, my thoughts to your thought

<p><span>My mind to your mind, my thoughts to your thought</span></p>
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Activity in One Brain Predicts the Other (cont)

An interplay between prediction and comprehension

  • Listeners are coupled with each other, and they are coupled with the speaker’s previous brain activity!

    • The largest lag is in the prefrontal cortex

<p><span>An interplay between prediction and comprehension</span></p><ul><li><p><span>Listeners are coupled with each other, and they are coupled with the speaker’s previous brain activity!</span></p><ul><li><p><span>The largest lag is in the prefrontal cortex</span></p></li></ul></li></ul><p></p>
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Story Production

Speaking the same

<p>Speaking the same</p>
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Story Production vs Story Comprehension

Speaking the same, hearing the same

<p>Speaking the same, hearing the same</p>
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Neural Coupling Predicts Comprehension

Getting on the same page in our brains

<p><span>Getting on the same page in our brains</span></p>
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Moving shapes example

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Neural Coupling Predicts Comprehension

Getting on the same page in our brains

  • Increased neural coupling in Ang and PMC between Movie participants with similar recalls

    • When shown a video vs description, how similar the structure of the story is what predicts coupling

<p><span>Getting on the same page in our brains</span></p><ul><li><p><span>Increased neural coupling in Ang and PMC between Movie participants with similar recalls</span></p><ul><li><p><span>When shown a video vs description, how similar the structure of the story is what predicts coupling</span></p></li></ul></li></ul><p></p>
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Neural Coupling Predicts Shared Understanding

Assumptions matter in memory encoding and retrieval

  • Watching a movie with a huge spoiler at the end; but sometimes being shown the spoiler first

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Interpretation of the story context changes (neural) memory

Multiple brain regions encode the narrative differently, despite the same perceptual stimulus

<p><span>Multiple brain regions encode the narrative differently, despite the same perceptual stimulus</span></p>
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Story Production vs Story Comprehension

Neural model of real-life communication

<p><span>Neural model of real-life communication</span></p>

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