The aim of B and C | If an environment of horizontal or vertical lines could develop normal vision |
The design for B and C | - Lab experiment
- new born kittens ( 2 weeks of age +)
- Iv = environment v or h
- DV= could detect v or h alligned objects |
Procedure of B and C | Tall cylinder - horizontal or vertical lines- 5 hours a day
- wide collar to not see body
-after 5 months placed in 7 hours a week in a well lit room
- |
Controls in B and C | HELP ESTABLISH CAUSE AND EFFECT
-2m cylinder
-collar |
Results of B and C | Behavourial findings - no startle response at first
after 10 hours visual placing began
Neurological findings- no neurons in v or h orentations |
Eval B and C | - clear findings of B and C
-highly controlled/ high internal validity
w
-ethical limitations
- not generalisable |
Sperry aim | the effects of hemisphere disconnection |
Left hem uses | - language
- writting
-logical
science |
Right hem uses | Pictures
symbols
emotion
art |
Design sperry | - quasi experiment
- 11 split brain patients
-cerebal cortex severed to help with elipsesy |
Procedure of sperry | lab conditions so highly standardised
visual task and image reflecting into the right or left visual field
tactile task a stimulus to one hand and asking them to name and same in other |
Controls in sperry | eyepatch
1/10 s image flash |
evaluation of sperry | w- small sample size
s-quan and qual data |
Aim of maguire | if changes in the brain could be detected in london taxi drivers |
design of M | quasi experiment and correlational anaylysis
matched pair design |
Participants of M | 16 healthy right hand taxi drivers done the knowledge
compared against control group of 50 healthy right handed males |
Procedure of M | An MRI scan
pixel counting - blind technique counting area of grey matter
VBM - computer density of grey matter |
Results of M | Posterior hippocampi was bigger in taxi drivers than control - spacial nav |