biology

• Sperry

  hemisphere deconnection
• what was the independednt variable of sperrys study?

  having/ not having a split brain
• what was the dependent variable in sperrys study?

  naming objects/ recognising objects
• how many different tests were there in sperrys study?

  four
• what were the four different tests in Sperry's study?

  1. visual test
  2. tactile test
  3. visual and tactile test
  4. right hemisphere/ nude image
• what type of experiment was sperrys study?

  quasi experiment
• how many participants took place in sperrys study?

  eleven
• what did all the participants in sperrys study have in common?

  they all had epilepsy
• what was the strength of sperrys study?

  it was naturally occurring as they had all had the procedure prior to the study.
• what is the weakness of sperrys study?

  low ecological validity
• casey

  delay of gratification
• what is another name of caseys study of delay of gratification?

  go-no go
• what type of experiment was casey's?

  quasi experiment
• casey's study followed children from childhood into adulthood
• what is the independent variable in caseys study?

  whether the participant was a high or low delayer
• what was the dependent variable in caseys study?

  how well the participant did on the hot or cool task
• what did the hot and cool task mean in casey's study?

  hot = happy and fearful face

  cool = neutral
• what were the results from caseys study?

  the majority of participants scored a lot worse on the hot task
• strengths of Casey's study?

  Large sample size,

  controlled variables.

  quantitative data
• how many participants were in casey's study?

   59 participants (32 high delayers and 27 low delayers).
• weaknesses of caseys study?

  risk of extraneous variables
• blakemore and cooper

  brain development on visual environment
• what type of experiment was blakemore and cooper?

  laboratory experiment
• what was the independent variable of blakemore and cooper study?

  horizontal or vertical lines
• what was the dependent variable in blakemore and cooper's study?


  kittens visuomotor behaviour
• how long were the kittens in the visual apparatus in blakemore and cooper study?

  from the ages of 2 weeks to 5 months
• what were the findings of blakemore and coopers study?

  the cats developed some depth perception

  there was no evidence of astigmatism
• strengths of blakemore and coopers study

  collected both quantitative and qualitative data

  it was a controlled and standardised procedure
• weaknesses of blakemore and coopers study?

  there were many ethical issues
• maguire

  navigation of taxi drivers, hippocampus volume
• how many participants took part in Maguire's study?

  16 right handed males
• what type of experiment was maguires?

  quasi experiment
• what two types of scientific tests did maguire look at?

  • pixel counting
  • MRI scan
• what was the independent variable of maguires study?

  whether they were a taxi driver or not

  how long they had been a taxi driver for
• what was the dependent variable for maguires study?

  VBM

  Pixel count

  grey matter
• what part of the brain did maguire look at?

  the hippocampus
• what were the results from maguires study?

  Taxi drivers had a significantly greater volume in the posterior hippocampus, whereas control subjects showed greater volume in the anterior hippocampus.

   
• where did Maguire's study take place?

  London, England
• strength of Maguire's study?

  ecological validity

  quantitative data
• weaknesses of Maguire's study?

  Small sample size