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14 Cards in this Set

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Short Term Memory
Stores small amounts of information for a brief duration. Includes new info received from sensory and long term memory.
Capacity/Duration of short term memory
Duration - about 15-20 seconds
Capacity - 5 to 8 items
Short term memory Digit Span
The number of digits a person can remember.
Chunking
Small units can be combined into larger meaningful units.
Types of coding in short term memory
The way information is presented.
Visual Coding - in terms of sight
Auditory Coding - in terms of sound
Semantic Coding - Items in terms of meaning.
Working Memory
Limited capacity system for temporary storage and manipulation of information for complex tasks such as comprehension, learning, and reasoning
Phonological Loop
One of four parts of working memory which interprets auditory and verbal information.
Visuospatial Sketchpad
One of four parts of working memory which focuses on visual and spatial information involved in visual imagery.
The Central Executive
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.
Episodic Buffer
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.
Working Memory and the Brain - Damage to Prefrontal Cortex
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).
Working Memory - Neural Responding in monkey experiment.
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.
Sensory Memory
(definition)
Initial stage that holds ALL incoming information for seconds or fractions of a second.
Sperling Experiment
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.