cognition Flashcards
cognition definition
a general term used to refer to the “higher” mental abilities. generally taken to include such forms of mental activity as thinking, conceptualisation, memory, representation, mental imagery, perception, attention, reasoning and decision making.
what are the three assumptions of the infomation processing approach?
- info is processed by a series of systems
- systems transform or alter the info
- the aim of research is to specify the processes and structures that underline cognative performance
- info processing in humans resembles computers
what are the three memory systems?
sensory memory, short term, long term
what does the multi store model of memory consist of?
capacity, duration and function
what is the information processing model?
attkinson and shiffrin suggested that memory is made up of a series of stores. explains how processes such as sensation, perception, attention and memory are controlled.
how is memory mentally represented?
memory is the psychological version of the original sound, though, subject or concept
what is encoding?
changing infor into a form in which the brain is able to store
must attend to the info for it to be encoded
what is storage?
refacing the info into memory
what is retrieval?
ability to locate and recover previously stored info
what is sensory memory?
memory retained for short periods of time (3-4 secs)
stores all five senses in specific registers
what are the two parts of sensory memory?
iconic and echonic memory
what is iconic memory?
temporarily stores sensory info of a visual nature
what is echonic memory?
temporarily stores sensory info of an auditory nature
what is short term memory?
thoughts, words, images available for decision making and problem solving
how long is info stored in stm? how much?
30 seconds
george miller - 7 +- 2
how can you transfer info from stm to ltm?
maintenance rehearsal and elaborative rehearsal and chunking
what is maintenance rehearsal?
meaningless rote repetition of material to be remembered
what is elaborative rehearsal?
applying meaning to new words in order to retain them in memory
what is chunking?
material is combined into a larger, meaningful group
who created the theory of working memory?
baddley and hitch 1974
what are the three parts of working memory?
central executive, phonological loop, visou spatial sketchpad
what is the central executive?
boss of the working memory
controls and coordinates the slave systems
controls attention, sends incoming info to the relevant components and stores all sensory info
what is the visou spatial sketchpad?
stores and manipulates info of a visual and spatial nature
what is the phonological loop
stores and manipulates info of an auditory nature
what are the predictions of the working memory model?
- if two tasks make use of the same component they cannot be performed together
- if two make use of different components they can be performed together
what is long term memory?
a relatively permanent storage facility for an infinite amount of information
what is the capacity of the ltm?
unknown but thought to be unlimited
what are the two areas of ltm?
procedural memory and declaritve memory
what is procedural memory?
the way you do things
unconscious
what is declarative memory?
the way of memory
conscious