PSY270H1 Lecture Notes - Lecture 4: Long-Term Memory, Iconic Memory, Sensory Memory

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Published on 22 Sep 2017
School
UTSG
Department
Psychology
Course
PSY270H1
Lecture 4: Memory Basics
Learning Objectives
Define the different types of memory and memory tasks
- Explicit: conscious memory; declarative
o Working Memory: processing unit of information that is the current focus of attention
o Long-Term Memory: long-term storage of memory after some elaborative processing has
occurred
Episodic: eor for a speifi episode or eperiee i oe’s life
Semantic: memory for facts or knowledge
- Implicit: unconscious memory
o Procedural: memory for skill or procedure
o Priming:
Perceptual: see a stimulus and showed again, you would respond faster the second
time
Semantic:
o Conditioning
o Nonassociative: simple type of learning that does not involve conditioning
Desrie Atkiso & Shiffri’s odal model of memory
- Sensory memory: a limited capacity store that holds basic sensory information for a very limited
amount of time
o We have different store for each of our senses
o Attention helps pass items in sensory store on to short-term memory
- Short-term memory
o A limited capacity store that holds information for a relatively brief period
- Long-Term Memory
o Storage of memory after some elaborative processing has occurred
List the coding, limiting factors and processes associated with sensory memory, STM and WM
- Sensory Memory
o Coding: unprocessed sensory information
o Limiting Factors
Capacity: 9-12 items for iconic memory
Duration: ~150ms for iconic and 4-5s for auditory and tactile
o Process: Attention
- Short-Term memory
o Coding: Primarily acoustic but have visual information
o Limiting Factors
7 +/- 2 auditory, 4 items visually
Duration: ~20 seconds without rehearsal
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Document Summary

Learning objectives: define the different types of memory and memory tasks. Short-term memory: a limited capacity store that holds information for a relatively brief period. Long-term memory: storage of memory after some elaborative processing has occurred, list the coding, limiting factors and processes associated with sensory memory, stm and wm. Sensory memory: coding: unprocessed sensory information, limiting factors, capacity: 9-12 items for iconic memory, duration: ~150ms for iconic and 4-5s for auditory and tactile, process: attention. Sperling was not convinced that we can only remember three or four items at a time thus conducted his own experiment. Showed participants array of letters (showed for seconds). When asked to remember as many letters as they can (whole report), people can only remember 3-4 items. Presented participants with an array of letter for less than a second and asked them to recall as many letter as they could from one row.

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