Corkin (HM Milner) aim
models of memory and multistore model
to understand the effects of surgery on patient HM milner
Corkin (HM Milner) study type
longitudinal case study
using method triangulation including
*psychometric testing like iq
*behaviour observations
*interviews with HM and his family
*cognitive tsting- memory recall and learning
*MRI on brain
Corkin (HM Milner) background
HM got hit by car at 7 and had serious head injury.
got epileptic attacks and seizures at 10 to 27 and became incacipated
couldnt recover or be normal and medication didnt work
with permission did experimental surgert and removedtissue from medial temporal lobe and hippocampus on both sides of brain
Corkin (HM Milner) effects of surgery
had antergrade amnesia (couldnt make new memories after specific event)
Corkin (HM Milner) implication
showed improvements nut never remembered the skill
meory sustems are important to study
st memory not sotred in hippocampus (not same as LT memory)
medial temporal lobe not site of permident storage as he remembered childhood
implicit memories have several storees
diffrent memory areas for procedural emotional and skills
Corkin (HM Milner) what new knowkedge could he not form… shows.
couldnt form episodic knowledge and no new semantic knowledge (ab world)
shows tissue from medial temporal lobe and hippocampus are important for memory st to lt
Corkin (HM Milner) what could he do
could draw florr plan of new house sp can form congitive map _______diffrent to semantic and epidosid
and workng memory model worked as he can carry out convos
has procedural knowledge as can mow a lawn
Corkin (HM Milner) what was the most damaged and what does that show
damage was less than thought but to hippocampus + temporal lobe were the most damaged.
prevents transfering knowledge from short to long term memory as acytlcholine neurotrransmitters are important for this
loftus and palmer aim
research method in cognitive, reliabiloty of cognitive processes
to see the role of leadng questions influencing memory of eye witnesses
loftus and palmer experiment 1
iv leading verb
dv estimation of speed
45 sstudents in groups of 9
independent sample design
7 traffic accident films shown lenght of 5-30 sec
watched and gave speed estimates and account of accident
leading questions: collided, bumped, smashed, hit contacted OR NO VERB
loftus and palmer results experiment 1
p= 0.005
higest estimate is smashed 40.8mph
lowest estimate contacted 31.8mph
loftus and palmer experiment 2 procedure
150 students in random conditions
independent (50 smashed, 50 hit 50 none)
shown 1 min flm, shpwing multiple accidents lasting 4 sec
question: descibe accient, speed with critical verb, broken glass yes/no (no broken glass in videos)
loftus and palmer experment 2 results
p= 0.025
smashed 10mph
higher estimate of glass in smashed
hit 8mph