Memory Chapter 6 Flashcards
- does how we remember something depend on how we think about it at the time?
yes
- three types of judgements
semantic judgements - think about meaning // rhyme judgements - think about the sound of words // visual judgements - think about the appearance of words
- which kind of judgement works best
semantic judgements
- explain semantic encoding/ where in the brain
process of releating knew nfo to knowledge already stored - more activity lower left of frontal lobe - inner part of left temporal lobe - more types of encoding the better
- how are memories made/ what is
by combining info already in brain with new info from senses - mem is ability to store and retrive info over time
- what are the 3 key functions of memory
encoding (transforming perception to memory) // storage (maintaining over time) // retrieval
- 3 kinds of storage/how to distinguish them
sensory - short term - long term - distinguish by amount of time retained - modal model of memory
- define sensory memory + eg
a type of storage that holds sensory info for a few seconds or less - ie only being able to remember latest words flashed on a screen
- what does sperling memory test show
shows iconic memory stores a whole grid of letters
- why does survival encoding work best
draws on semantic / visual / organizational encoding - all three @ once = advantage
- is superior recall observed for planning or survival?
planning
- organization encoding + example + who does
process of categorizing info according to relationships of itmes ie words into conceptual groups ie servers remember orders like this
- visual imagery encoding + example + advantages
process of storing new info by converting it to mental pictures - ie Simonides naming bomb dead by visual of their chairs - ie assigning item to rooms of house - doubles memory over just epeating words
- why did HM lose longterm memory
temporal lobes + hippocampus were removed
- what is long term memory + example
storage that holds info for hours - years: no capacity limits - ie knowing names in high school yearbook 50 yrs later
- can working memory improve/why would you want to improve it
yes working mem can improve - low scores = difficulty learning in classroom
- what is working memory
active maintenance of info in short-term stoage - subsystems store + manipulate visual images - central executive coordinates the subsystems
- what is Franco Magnani famous for
long term memoruy - perfect paintings of Pontito italy
- what is short term memory/how long effective
holds nonsensory info for more than a few seconds - less than a minute - best recall about 15-20 secs
- short term memory limitations + a method to remedy it
how long and how much - about 7 numbers or 7 meaninful infos - chinking combines small pieces into large chunks - more easily available in short term memory
- rehearsal def
keeping info in short term emory by mentally repeating it
- explain the 2 kinds of sensory memory
iconic = fast decay (1/4-1 sec) store of visual info / echoic memory = fast-decay store of auditory info (2-5 sec)
- what is retrieval (most important mem process
process of brining to mind info previously stored
- what is long-term potentiation LTP
communication across the synanpse between neurons strengthens the connection - makes further communication easier - aids long term mem
- what is slug Aplysia example of
learning based on synapse changes for short-term storage (enhance neurotransmitter) and long term storage (new synapse growth)
- explain consolidation + implications/when
process where mems becomes stable in brain - means less hippocampus needed for it over time - consolidation happens during recall/sleep
- explain why reconsolidation + eliminating it implications
memories vulnerable to disruption when they recalled - so they need reconsolidation - preventing initial consolidation = forgetting - could force forget bad things/amygdala emotion memories
- retrograde amnesia def/antonym
inability to retrieve info acquired before particular date vs anterograde amnesia