Please enable JavaScript.
Coggle requires JavaScript to display documents.
AS Biological Regions of the brain (Classic (SPERRY(1968)- Hemisphere…
AS Biological
Regions of the brain
Classic
SPERRY(1968)-
Hemisphere disconnection and unity in conscious awareness
or lateralisation of function
PROCEDURE
TACTILE TEST
below the translucent screen there was a gap so that pps could reach objects but not see their hands. Objects were then placed in either the pp's right/left hand or both hands. information about objects placed in the hand is processed by the right Hemisphere and vice versa
VISUAL TEST
The participant, with one eye covered, centred his gaze on a fixed point in the centre of an upright translucent screen.
the image was projected at 1/10 of the second. This overcome information going to the wrong visual field.
Everything projected to the left of the central meridian of the central meridian of the screen is passed the LVF to the right hemisphere and vice versa (regardless of which eye is used)
RESULTS
VISUAL TEST
TACTILE TEST
METHODOLOGY
IV
No IV because the variable is naturally occuring. Split-brain/ not split-brain
DV
ability to perform a variety of visual and tactile test
METHOD AND DESIGN
Quasi laboratory experiment - independent measures design
SAMPLE
11 split-brain patient Opportunity sample
CONCLUSION
Split-brain patients have a lack of cross-integration where the second hemisphere does not know what the first hemisphere has been doing.
Split-brain patients seem to have two independent streams of consciousness, each with its own memories, perceptions and impulse ie two minds in one body
People with split brains have two separate visual inner worlds, each with its own train of visual images.
AIM
to investigate the effects of this deconnection and show that each hemisphere ha different functions; in other words, to map lateralisation of brain function and show that information in oneside of the brain is not accesible to the other side
*KEY TERMS
LATERALISATION
Where as one side of the brain is dominant for certain actions and behaviours. Left hemisphere= language Right hemisphere= emotion & spatial awareness
CORPUS CALLOSUM
the tissue joining the two hemispheres of the brain together
CEREBRAL HEMISPHERE
one of two regions of the brain. the brain is split into the left and right hemisphere (LH/RH)
VISUAL FIELD
each eye has a left and right visual field (LVF/RVF) which captures information to send to the brain
Contemporary
CASEY ET AL(2011)-
Behavioural and neural correlates of delay of gratification 40 years later
or localisation of function of the brain
PROCEDURE
RESULTS
METHODOLOGY
METHOD AND DESIGN
Quasi laboratory experiment
IV
IV is naturally occurring and cannot be manipulated. low dalyer/ high delayer
DV
EXP 1
performance on the impulse control task
EXP2
performance on the impulse control task and imaging results using fMRI
SAMPLE
EXP 1
59 pps(23m, 36f)
32 high delayers, 27 low delayers
EXP 2
27pps(13m,14f)
15 high delayers, 11 low delayers
CONCLUSION
resistance to temptation is relatively stable individual characteristics
AIM
Assess whether delay of gratification in childhood predicts impulse control abilities and sensitivity to alluring or social cues (happy faces) at behaviour and neural level when participants were in their 40s
KEY TERM
LOCALISATION
Where different areas of the brain relate to particular behaviours and action
VENTRAL STRAITUM
part of our limbic system associated with more immediate choices and reward
FMRI (FUNCTIONAL MAGNETIC RESONANCE IMAGING)
maps neural activity in the brain by imaging the change in blood flow related to energy use in the brain cells.