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Cog Psych Chapter 5
STM, WM, Sensory Memory
34
Psychology
Undergraduate 4
10/20/2011

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Term
Memory
Definition
Process in retaining, retrieving and processing info after original info is gone
Term
Atkinson and Sharif Model Model of Memory 2 stores
Definition
Short term, long term, sensory
Term
Short term store
Definition
Includes rehearsal buffer
Term
Long term store
Definition
Includes control processes related to mental activities
Term
Snesory Memory Modal Model
Definition
Early sensory representation of stimulus
Term
Modal Model of Memory Order
Definition
1. Input 2. Sensory Memory 3. Short term memory 4. Output or Long Term Memory
Term
Problems of Modal Model
Definition
How could one form LTM if STM memory is
impaired
STM may not just be single process
Memory may involve storage and processing
Term
Sensory Memory
Definition
Brief retention of effects of sensory stimulation
Term
Sperling's Visual Icon Study
Definition
Participants shown 12 letters in rows of 4, Whole report, partial report, delay
Term
Whole report procedure
Definition
Reported 4 or 5 of 12 letters correctly
Term
Partial report
Definition
Reported 3.3 of 4 letters correctly
Term
Partial Report delay result
Definition
Memory faded after 1 second
Term
Iconic Memory
Definition
Brief sensory memory for visual stimulus
Term
Echoic Memory
Definition
Brief sensory memory for auditory stimulus
Term
Properties of STM
Definition
Capacity, Duration
Term
Capacity (STM), Digit Span
Definition
7 plus or minus 2, recent research says it could be 4
Term
Erickson Chunking
Definition
Students can increase digit span by chunking info
Term
Chunking chess study, Chase and Simon
Definition
Intermediate, Beginner, Master players
Shown chess board with fake or real chess positions
Asked to remember positioning of pieces
Masters did best at task when real but all same when fake
Masters were able to chunk
Term
Duration experiment Brown and Peterson
Definition
Given trigram then asked to count backwards by 3
Longer duration made it more difffiuclt to remember
Must be actively storing info
Term
Proactive Interference
Definition
Old info interferes with learning new info
Term
Working Memory
Definition
Limited capacity system for temporary storage and manipulation of info for complex tasks
Term
Phonological Loop
Definition
Hearing directions
Term
Word length effect
Definition
Memory for word lists is better for short words than long words
Term
Articulary Suppression
Definition
Repeating and irrelavent word impaired WM
Term
Visuospatial Sketch Pad
Definition
Visualizing route and what will happen
Term
Evidence of visuospatial sketch pad two tasks at once
Definition
Performance goes down if some processes emplyed
Term
Brooks Verbal Task
Definition
Memorize sentence then say yes or no to number of vowels
Performance worse than when pointed to yes or no
Term
Brooks Spatial Task
Definition
Looked at block letter then had to respond yes or no
Easier to say than point because pointing spatial
Term
Central Executive system
Definition
Gets info from LTM and coordinates activity between Phono Loop and Sketch Pad
Term
Dysexecutive Syndrome, what part of brain?
Definition
Deficites in coordinating actions to meet goal
Frontal Lobe injury
Term
Traits of dysexecutive syndrome
Definition
Exhibit preservation, keep going past what is necessary
Term
Exhibit Distraction
Definition
No goal guides planned actions
Term
Pre frontal cortex, where does it receive from
Definition
Sensory, motor areas, and LTM
Term
Monkey delayed response task
Definition
Monkey sees food in well, after delay picks right well, damage to pre frontal cortex can't pick right well
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