Memory Flashcards
when does the information processing approach date back to?
1950s, due to inspiration from emergence of computers
what is the information processing approach?
the human mind and computer are similar, as they receive information (via sensory and input systems) and process this through a series of organised steps
atkinson and shifrin (1968)
defined their memory model through stages of input, sensory memory, working memory, and long-term memory
baddeley and hitch (1971)
suggested three main components of visual, phonological, and episodic
subcomponents of sensory memory
iconic (for what you hear)
echoic (for what you see)
this lasts a different amount of time depending on information modality (visual = 50ms, echoic = 3-4s
what does sensory memory serve as?
a temporary register of all sensory information taken in by the by nervous system
sensory memory -> working memory
deciding which information to pay attention to determines what gets passed onto working memory
what did blaser and kaldy (2010) find about the capacity of sensory memory at 6m?
evidence of a five-object iconic memory capacity
infants’ visual sensory store capacity is adult-like at 6m of age - little developmental change
how did baddeley and hitch (1974) describe working memory?
the temporary ‘workspace’ of the mind
capacity of working memory
capacity is defined by quantity rather than time – 7+/- 2 elements and can last up to 30s in adults
different subcomponents of working memory
visuospatial sketchpad
phonological loop
central executive
episodic buffer
what is processed in the visuospatial sketchpad?
visual and spatial information
what is processed in the phonological loop?
verbal information
where is information containing both verbal and visual information processed?
central executive, which directs coordination to create integrated representations to be stored in the episodic buffer
what did the looking-time experiment by kaldy and leslie (2005) find?
at 6.5m, infants could only store one element in their WM capacity (unlike sensory)
looked longer during the shape change condition
how does the amount of information infants can process and store in WM increase with age?
12 months - remember up to 3 hidden objects (feigenson and carey, 2003)
14 months - chunking increases WM span to 6 objects, seen in search time (halberda, 2008)