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Chapter 8

Chapter 8: Memory

Video Exercises

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Your memory is bigger and better than scientists expected.

Good news about our brains—it turns out our visual memory is bigger and better than previously thought. The study authors even offer a tip to help improve your memory, and keep you from losing your keys.

Interviewees: Aude Oliva and Timothy Brady, ?Massachusetts Institute of Technology; Jennifer Ramirez, Brooklyn, NY; David Greenlie, Poughkeepsie, NY; ?Mark Smolen, East Meadow, NY

Copyright © ScienCentral, Inc.? Image courtesy: iStockphoto.com/Piotr Podermanski.

How big is your memory? How much information can it hold? This study looks at people’s ability to store away thousands of individual images.

1.
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The participants were asked to pay close attention to the images as they were flashed on the screen. The textbook describes the three stages of memory: sensory memory, working memory, and long-term memory. Which one of these memory systems is probably most active when the person is trying to pay attention to the details of each picture?
2.
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Working memory has several components. Which component of working memory briefly holds onto the visual image, even after it disappears from the computer screen?
3.
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Memory span is the term for the number of items that working memory can hold. If the estimate found in the textbook is right, what is the approximate number of pictures that could remain in working memory at one time?
4.
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This experiment took 5 hours, so it is obvious that long term memory must be involved. Which of these memory systems is most likely to have stored the 3,000 images prior to the recognition phase of the study?

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