cognitive area Flashcards
background to Moray’s study
Cherry stated that no matter how deep in conversation you are at a cocktail party, if someone mentioned your name this would draw your attention (cocktail party effect)
Moray wanted to test this to see if your name would indeed break through the barriers put up in the process of focusing attention during a shadowing task
what is cocktail party effect
there is a barrier broken when your name is said in a crowded room
what is dichotic listening
when headphones are worn by a participant and a different message is played in each ear
what is shadowing
when a participant is told to focus on a passage of text whilst dichotically listening and repeat it out loud as they hear it
what is affective instructions
when a person is asked to do something preceded by their name being said
aim to Moray’s study
test Cherrys findings on the inattentional barrier more thoroughly as he found that people who shadowed one task could recall nothing from the rejected task
sample in Moray’s experiment 1
-undergraduate students
-both genders
-Oxford University
procedure in Moray’s experiment 1
1) participants shadowed a piece of prose they could hear in 1 ear through Brenell mark tape recorder (attended message) which they completed 4 times before as practise
(speech rate 150 words a minute and male speaker)
2) loudness matched in each ear by participants saying when message appeared to be of equivalent volume to them
3) in other ear a list of words was repeated 35 times (rejected message)
-at the end participants completed a recognition task where they had to indicate what they recognised from a list of 21 words
-7 words were in attended passage, 7 were in rejected and 7 were in neither passage
results
mean number of recognised shadowed passage-4.9
rejected passage- 1.9
neither passage - 2.6
aim of Moray’s experiment 2
wanted to find out if an affective cue (their name) given alongside instructions, could break inattentional barrier
sample of Moray’s experiment 2
-12 undergraduate students
-both genders
-Oxford University
what was the independent variable in Moray’s experiment 2
whether an instruction within a rejected message was preceded by the participants name or not
what was the dependent variable in Moray’s experiment 2
whether participants were more likely to hear an instruction in a message they’re not paying attention to if its preceded by their name
procedure in Moray’s experiment 2
1) participants listened to 2 different passages of light fiction at the same time, shadowing task each time
2) contained an instruction at the start and within them
both passages read in a steady monotone in a male voice at 130 words per minute
3) checked there was no increase in intensity when name spoken
4) participants decieved as they were told to make as little errors in shadowing
some instructions said name, you may stop now and some did not say name
some had no instructions
results for Moray’s experiment 2
affective instruction said 39, heard 20
non - affective said 36, heard 4
less than 1% probability due to chance
more likely to hear instruction within passage if given an instruction at the start (pre warning)
what was the aim of Moray’s experiment 3
would pre warning break the inattentional barrier
sample used in Moray’s experiment 3
two groups of 14
both genders
Oxford University
what was the independent variable in Moray’s experiment 3
manipulation of the instructions given to ‘set’ the 2 groups of participants
what was the dependent variable in Moray’s experiment 3
how many digits our participants can recall from the rejected message
procedure of Moray’s experiment 3
1) 1 group was told they would be asked questions about the shadowed message at the end of each message
2) the other group were specifically told to remember as many of the digits as possible
results from Moray’s experiment 3
showed no difference in the mean scores of digits recalled correctly between the 2 set conditions - numbers cannot break through the block on the rejected message
background to Loftus and Palmer’s study
Bartlett created widely accepted idea of how the information we take in is affected by already existing schemata representing previous knowledge, however this had critics e.g the data was qualitative
Loftus was interested in the fragility of memory- how easily we can forget information
should eye witness testimony be used in court?
what is schema theory
the ability to retain information and to demonstrate this retention of information through behaviour
what is reconstructive memory
the way in which our biases and prejudices can unconsciously lead us to have memories of events that are distortions of what actually happened