Memory
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Memory. Declarative- factual information handled by hippocampus & areas of the cortex Episodic - personal facts and experiences Like an autobiography Maybe unique to humans Ex: first day of school Semantic - general, factual knowledge Ex: knowing the state capitals Like an encyclopedia.

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Presentation Transcript

Memory systems

Declarative- factual information handled by hippocampus & areas of the cortex

Episodic- personal facts and experiences

Like an autobiography

Maybe unique to humans

Ex: first day of school

Semantic- general, factual knowledge

Ex: knowing the state capitals

Like an encyclopedia

NonDeclarative/Pro-cedural- actions and skills (muscle memory)

Little conscious awareness

Ex: riding a bike

Performance decreases if you think too much

Doesn’t decline much

Cerebellum and amygdala

Memory Systems


3 key processes of memory
3 Key Processes of Memory

Encoding Storage Retrieval

Encoding- forming a memory code

Storage- maintaining encoded information over time

Retrieval- recovering information from memory stores


Encoding
Encoding

  • Encoding Techniques

    • Elaboration

    • Visual Imagery


Storage
Storage

Information Processing Theory- incoming information passes through 2 temporary areas of storage (sensory & short-term) and then is transferred to long-term storage

Sensory Short Term Long Term

(working)


Sensory memory
Sensory Memory

  • Allows sensation to linger for a brief moment after stimulus is presented

  • Less than a second

  • Ex: afterimage

  • Experiment with Trigrams!


Practice round
Practice Round

AGB

TJK

WLP


MIDDLE

TJK


Round 1
Round 1

MKL

WDC

BGT


BOTTOM

BGT


Round 2
Round 2

ZXA

QKI

NHY


TOP

ZXA


Round 3
Round 3

XCV

BHY

OTR


TOP

XCV


Round 4
Round 4

DWS

VFT

GXC


BOTTOM

GXC


Short term memory stm
Short-term memory (STM)

  • Limited capacity (7-9 items)

  • Limited duration (up to 20 sec.)

  • Rehearsal- Repeating information

    • causes STM to last longer

  • Interference- new info pushes out old

  • EXPERIMENT!

  • Chunking- combining separate items

  • EXPERIMENT!

  • Serial-Position Effect (primacy/recency)- better recall of info from beginning and end of list


Long term memory ltm
Long-Term Memory (LTM)

  • Unlimited capacity over long periods of time

  • Flashbulb Memories- vivid & detailed recollections of momentous events in our life


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