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14 Cards in this Set
- Front
- Back
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Short Term Memory
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Stores small amounts of information for a brief duration. Includes new info received from sensory and long term memory.
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Capacity/Duration of short term memory
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Duration - about 15-20 seconds
Capacity - 5 to 8 items |
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Short term memory Digit Span
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The number of digits a person can remember.
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Chunking
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Small units can be combined into larger meaningful units.
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Types of coding in short term memory
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The way information is presented.
Visual Coding - in terms of sight Auditory Coding - in terms of sound Semantic Coding - Items in terms of meaning. |
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Working Memory
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Limited capacity system for temporary storage and manipulation of information for complex tasks such as comprehension, learning, and reasoning
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Phonological Loop
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One of four parts of working memory which interprets auditory and verbal information.
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Visuospatial Sketchpad
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One of four parts of working memory which focuses on visual and spatial information involved in visual imagery.
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The Central Executive
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One of four parts of working memory. The attention controller which coordinates the Phonological Loop and Visuospatial Sketchpad and determines how attention is focused, divided, or switched between tasks.
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Episodic Buffer
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One of four parts of working memory. Backup store that communicates between Long term memory and the central executive. Has a larger capacity then Phonological Loop or Visuospatial Sketchpad.
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Working Memory and the Brain - Damage to Prefrontal Cortex
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Working memory is no longer functional. (ex: Monkey experiment, prefrontal cortex removed, shown food, sheet covers them, then picking where the food is hidden under two sheets. 50/50 chance of success due to no WM).
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Working Memory - Neural Responding in monkey experiment.
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An experiment using a monkey to watch the location of a flashing square showed that neurons continued to fire after the square dissapeared during the delay before reappearance.
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Sensory Memory
(definition) |
Initial stage that holds ALL incoming information for seconds or fractions of a second.
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Sperling Experiment
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Experiment testing Sensory memory capacity. Full report method asked participant to remember a full 12 letters placed as 3 columns and 4 rows, while partial report asked participant to remember a single row of 4 based on the pitch of a tone (high tone = top row, low tone = bottom row, etc) Results differed based on whether the tone was immediate or delayed.
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