10-Topics-Memory-1 - Introduction to Cognitive Science...

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Unformatted text preview: Introduction to Cognitive Science PSYCH 1102/COGST 1101/LING 1170/ PHIL 1910/CS 1710 Topics: Memory Recollection vs. re-collection Salvador Dali: The Persistence of Memory (1931) Outline What do we use memory for? Of humans and goldfish? Memory as reconstruction Thoughts from eyewitness testimony Implicit memories Memory without knowing Why do we do things this way? Is computer memory really better? What do we use memory for? Of humans and goldfish What do we use memory for? First a quick memory test: How many animals of each kind did Moses bring onto the Ark? What do we use memory for? They say goldfish have no memories, I guess their lives are much like mine. And the little plastic castle, Is a surprise every time. Little Plastic Castles-Ani DiFranco What do we use memory for? We are the sum total of our memories What do we use memory for? Memory is the basis for: Categorization Knowledge representation Schema Language processing Object recognition In short, almost everything we do! What is knowledge representation? Sensation Perception Cognition Action Memory is the result of perception & cognition but also influences new perception & cognition What do we use memory for? Back to our quick memory test: How many animals of each kind did Moses bring onto the Ark? 2? 7? 0? What do we use memory for? If our concept of self is so driven by our memories, why are we bad at it? Memory as reconstruction Thoughts from eyewitness testimony Memory as reconstruction Imagine you witness a crime Later you read a newspaper account of the crime Will information from the newspaper account influence your recollection of the crime itself? One would hope not! We trust our memories for events Loftus & colleagues (1980s & 90s) Show participants slides of a car accident Ask, How fast were the cars going when they hit each other? 34 mph smashed into each other? 41 mph Wording of the question influences performance! Memory as reconstruction Loftus & colleagues (1980s & 90s) Later ask both groups of participants if broken glass was ever in the pictures (there wasnt) Hit group: 14% say yes smashed group: 32% say yes Wording of the previous question influences memory for the initial images! Memory as reconstruction Loftus & colleagues (1980s & 90s) Present image of car running a stop sign Ask how fast car was going when it ran the yield sign Later ask participants to choose which of three signs was in the image (stop, yield or one way) Memory as reconstruction...
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10-Topics-Memory-1 - Introduction to Cognitive Science...

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