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Psych210 Week 4 Notes

by: Anjali Grutzius

Psych210 Week 4 Notes PSY 210

Anjali Grutzius
Western Washington University
GPA 3.2

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About this Document

These notes cover Module 5: Memory is not only of events in your life Only one day in week 4, Tuesday class was Exam 1
Cristina Sampiago
Class Notes
Psychology, cognition, neuroscience, Science
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This 3 page Class Notes was uploaded by Anjali Grutzius on Saturday October 15, 2016. The Class Notes belongs to PSY 210 at Western Washington University taught by Cristina Sampiago in Fall 2016. Since its upload, it has received 5 views. For similar materials see Cognition in Psychology at Western Washington University.


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Date Created: 10/15/16
Psychology 210 Week 4 10/13/2016 Module 5: Memory is not only of events in your life -bumper point: 10 things that use memory Early Information Processing: The Modal Model (Atkinson & Shiffrin, 1968) • A lot of short term memory (stm) never makes it to the long term memory • Filters from sensory memory to stm which has an output of behavior Sensory memory: briefly retains raw (no meaning), sensory information. Empirical facts: • What seems like a physical stimulus continues to be present after stimulus is no longer present. • Information can be extracted after the stimulus is no longer present. Iconic Memory: visual sensory memory 1. Wundt’s whole report procedure -Flashed for 50 milliseconds -Repeat back a row of letters 2. Sperling’s partial report procedure • Signal given after the square was gone. They didn’t know which row ahead of time. Better results. • What were the participants seeing before the letters faded? That is, how much info is in sensory memory? • Limit of sensory memory is temporal. • How fast is fades is a better question • What is the duration of iconic memory? • Information decays within less than a second. • Increased the time of asking what row to repeat after it flashes. • Sensory memory lasts for a second or less. Varies on stimuli. Echoic memory: auditory sensory memory • Lasts longer than iconic memory • Similar techniques as iconic • Partial report advantage for reporting one stream only. • Echoic can be cued by category (numbers/words) but iconic cannot. • Echoic has a larger capacity. We hear more than we can see. Short-Term Memory- Holds and manipulates information. Information that you are processing at this very moment. Questions that get asked? -What is the capacity of STM? -What is the duration of STM? Rehearsal: repeating phone number over and over until you reach the phone. After dialing, you’ll lose the info. Capacity is very limited, short duration. What is the capacity of STM? • 7 items plus/minus 2 Miller’s (1956) magic 7+/- 2 Digit span • Presented with a sequence of items • Asked to repeat them in order • Sequence increases until failure Chunking: • Grouping of items into a single unit • Means to deal with large amounts of information • Depends on knowledge • STM capacity determined by number of chunks. Ericcson’s (1980) chunking and memory • College student and runner S.F. with memory span of 7 • 230 one hour sessions increased his span to 79. • Using chunking (recoded digits into larger meaningful units) Chase & Simon’s (1973) chess memory experiment • Chess players presented with game positions (5s) • Master and Beginner • Task: reproduce the positions • Result: Master’s performance was superior for game positions • No difference when chess pieces were arranged randomly • Superior performance caused by chunking. What is the duration of STM? • About 15-20 seconds Brown-Peterson paradigm • Presented with sequence of 3 consonants • Presented with 3 digit number and count backwards and in threes


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