11Memory08

11Memory08 - Memory Continual state of amnesia (Clive) Like...

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Memory
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Continual state of amnesia (Clive) Like constantly waking up for the first time Not having any memory past ½ minute Due to destruction of hippocampus Can remember things before his brain infection, but he cannot form new memories Short term memory is fine
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Overview I. Kinds of Memory: Sensory, Working, Long-term I. Emotion and Flashbulb Memories I. Amnesia as evidence for the failure to encode new memories
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A Basic Model of Memory Sensory Input Sensory Memory Working or Short-term Memory Attention Maintenance Rehearsal Long-term memory Encoding Retrieval Three memory stores that differ in function, capacity and duration Control processes - control movement of information within and between memory stores
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Sensory Memory Store (like a snapshot) Function - holds information long enough to be processed for basic physical characteristics Capacity - large Duration - very brief retention of images (1/3 of a second), unlimited capacity Sensory Input Sensory Memory
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Sensory Memory Demonstration + Focus on the cross
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Sensory Memory Demonstration X M D N I F B Z
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Sensory Memory Demonstration What were all of the letters?
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Sensory Memory Demonstration + Focus on the cross
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Sensory Memory Demonstration Q U C L T J R M
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Sensory Memory Demonstration -- -- -- -- -- -- -- -- Report the letter that was where the arrow points
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Sperling’s Experiment Flash matrix of letters for 1/20 of a second Report as many letters as possible Subjects recall only half of the letters Why? K Z R Q B T S G N
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Sperling’s Iconic Memory Experiment Q C F T S K G O W R J B 1. Letters are displayed on a screen for 1/20 of a second
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Sperling’s Iconic Memory Experiment 2. Screen is blank
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Sperling’s Iconic Memory Experiment Length of time varies up to one second HIGH LOW MEDIUM 3. Tone is sounded, indicating row
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Sperling’s Iconic Memory Experiment 4. Subject reports letters in row indicated by tone S, K, G, . ..
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Sperling’s Experiment Sounded low, medium or high tone immediately after matrix disappeared tone signaled 1 row to report recall was almost perfect Sperling showed people can see and recall ALL the letters momentarily Memory for image fades after 1/3 second or so, making it hard to report entire display K Z R Q B T S G N High
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Sensory Memory Store Sensory memory is a brief persistence of a stimulus Large Capacity Decays rapidly .3 sec for visual info 2 sec for auditory info Sensory Input Sensory Memory
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Sensory Memory Store Divided into two subtypes: iconic memory - visual information echoic memory - auditory information Sensory Input Sensory Memory
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Sensory & Working Memories Sensory Input Working Memory Sensory Memory Top-down Selection of what to attend to Attention is needed to transfer information to working memory
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Working Memory Store Function - conscious processing of information
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This note was uploaded on 04/11/2008 for the course PSYC 101 taught by Professor Nosek during the Spring '07 term at UVA.

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11Memory08 - Memory Continual state of amnesia (Clive) Like...

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