Memory - Test 3 Flashcards
Memory
- encoding, storing and retrieving information
sensory memory
- info enters via our sensory organs
- can hold vast amounts of information
- after-image or sound lingers briefly after the stimulus (s) is removed
Iconic memory (visual S)
- lasts a fraction of a second
Echoic memory (auditory S)
- lasts 3-4 secs
Short term memory
- sometimes called “working memory”
- can hold unrehearsed info for 20 secs
- has a limited capacity (holds 5-9 items at a time)
- information loss can be due to decay or displacement
- rehearsal is required to maintain info in STM
Chunking
- a chunk is a group of familiar S stored in a single unit
- increases the capacity of STM
- IBM-CTV-CBC-FBI is easier to recall due to chunking than IB-MCT-VC-BCF-BI- 12 individual letters reduced to 4 meaningful chunks
What are the 3 components of “working memory”
1) auditory rehearsal
2) visual-spatial information
3) central executive
How is information transferred from STM to LTM
1) Maintenance rehearsal: serves to keep words “alive” in STM
a) create hierarchies
b) visual imagery
c) weaving words into a story
2) Elaborative rehearsal: you try to recall info by creating associations
3) Mnemonics- formal memory aids
Long-term memory (LTM)
- unlimited capacity
- info stored indefinitely
- difficult to substantiate
- no convincing evidence to support claims
Levels of processing LTM
the deeper the processing the better the long-term retention
Shallow processing
- processing the appearance of the word
Deeper processing
processing the sound of a word
Deepest processing
process the meaning of the word
Procedural memory
- memory for skills, actions, implicit memories (info was unintentionally or unconsciously learned)
- text refers to this as “automatic processing”
Declarative memory
- memory for information/facts, explicit memories (info was intentionally or consciously learned)
- text refers to this as “effortful processing”