Memory Flashcards
working memory
small amounts of information that can be held in the mind and used in the execution of cognitive tasks over a small amount of time
allows manipulation of information
allows focus of attention
Ebbinghouse - first person to test memory (capacity - 7 items)
behaviourism
all human behaviour can be explained in terms of conditioning
information processors
encode, store and retrieve information before producing behaviour
information moves through stores serially
cognition has a limited capacity, processing falls on a continuum (automatic to effortful)
Atkinson and Shiffren
first information processing model - series of parts that work together
sensory store
STM
LTM
Baddely and Hitch
STM split into 2 (WM)
responsible for holding information temporarily, executing operations and has limited capacity
executive control function - helps organise info between LTM and WM
visuospatial sketchpad - deals with visual information
phonological loop - auditory process
hardware
capacity of memory, speed of processing
software
ability to use strategies
Brainerd (1983) - encoding limitations
encoding limitations
- selective attention - attending to the wrong part
- encoding strategies - rehearsal (cant use repetition), organisation (don’t group items under 10 yo), elaboration (poor at association between words)
Brainerd (1983) - retrieval limitations
children may know the strategy but retrieve wrong information as they lack knowledge and experience
10 years - can name one strategy
5 years - only 1/2 can
Brainerd (1983) - storage/capacity limitations
WM capacity increases with age - usually 2 items less in children (tested with span test - random items recalled in specific order)
Chi (1978) - experience effects LTM
- children (chess experts) could remember more chess positions than non-expert adults
Brainerd (1983) - metacognitive limitations
develops with age
influences LTM
children overestimate their memory as they have poor metacognition
identifying memory limitations
Piaget and Inhelder’s (1951) probability judgment task
4 + 5 years - shown 10 tokens (7 blue, 3 of another)
children predict which token will be pulled
first - children predict blue
next - either of the colours
Brainerd (1983) - retrieval error (originally thought storage) - when the information was repeated before each pick they chose blue every time
individual differences in WM
language - WM important for learning new vocabulary (correlated)
academic skill - causally underpins their achievments
WM age 4 - predicts writing skills age 7
age 5 - better predictor of maths and litracy age 6 compared to IQ
WM and maths - visuospatial associated with maths in younger children
- phonological memory in older children
- different types of memory involved in different problems
helping poor WM
cognitive profile - ADHD can be confused with poor WM
teacher help - auditory and visual support, use checklists and instructions
psychologist help - test interventions to help poor WM, improve training (target metacognition or domain related skill)