memory ao3 Flashcards
shallice and warrington
WMM
patient KF
amnesia
STM for digit spoor when read out loud to him but recall better if able to read himself
support separate visual and acoustic
trouble with testing brain damage - couldn’t test them before
baddeley - dual task performance
WMM
puts had more trouble doing two visual tasks than doing both a verbal and visual
because both visual tasks were competing for same slave system
= must be separate slave system
lack of clarity over central executive - WMM
baddeley
don’t know where it is
its capacity hasn’t been measured
lack of clarity
isn’t fully explained
Beardsley
MSM
prefrontal cortex active during STM but not LTM
squire
MSM
hippocampus active when LTM
Atkinson and shiffrin
MSM
baddeley and hitch
WMM
different LTM stores - brain scans evidence
episodic = hippocampus and frontal lobe
semantic = temporal lobe
procedural = cerebellum
different LTM stores - HM
differences between procedural and declarative
couldn’t form new LTMs but retained old
could form new procedural memories but not episodic or semantic. - could Draw by looking in mirror (procedural) but had no memory of learning this (episodic and semantic)
different LTM stores - episodic a gateway to semantic?
alzheimers patients
could form new episodic memories but not semantic
episodic places greater demands on mental processing = why its more affected
irish - found reverse, poor semantic but intact episodic
= possible to be formed separately
retroactive interference ao1
interference theory
muller
- given 6 mins to learn syllables
- retention interval task
- recall
- performance worse if given intervening task
- task produced RI because later task interfered with what previously learnt
proactive interference ao1
interference theory
underwood
- meta analysis
- learn series of word lists = don’t remember those at the start or later
- if learn 10 lists after 24hrs = 20%
- if learn one list = 70%
= more learnt = worse recall
similarity of test materials ao1
interference theory
mcgeoch and McDonald
- learn list a of 10 adjectives
- resting interval - learn list b
-n recall
- if list b = synonyms - list a recall = poor
- if list b = nonsense -recall = improved
- if list b numbers = best recall
baddeley and hitch - interference
rugby players recalling names of teams they’ve played against
some played in some, some played in all
interference found that those who played more = forgot more
interference theory - artificial
lab - based
artificial list of words
findings may not relate to everyday use of memory
participants may lack motivation to learn list = interference effects appear stronger
= low in ecological validity
accessibility v availability
interference theory
causes memory to disappear or effects just temporary
ceraso -
If memory tested again after 24 hours = spontaneous recovery
encoding specificity principle ao1
retrieval failure
tulving
- memory most effective is info present at encoding is present at retrieval
- closer the cue = better recall
- learn 48 words belonging to 12 categories
- each word presented as word + category
- 2 real conditions
- 1 = free recall
- 2 = with cues
- free recall = 40%
- cued = 60%
also remember environmental context and emotional state
context dependent forgetting ao1
retrieval failure
abenethy
- students tested each week
- some tested in same room w same teacher - some by different teacher
- some in different room with same teacher - or different teacher
- same teacher, same room = performed best
state dependent forgetting ao1
retrieval failure
Goodwin
- mental state acts as cue
- remember list of words drunk or sober
- info learnt drunk is more available when drunk
retrieval failure - real world
godden and baddeley
scuba divers learnt list of words under water or on land
tested on land or water
highest recall when initial context matched the recall environment
Abernathy’s research = unrealistic
smith - just thinking of it is just as effective