Sperry Flashcards
What is the role of the frontal lobe?
cognitive functions such as organising, control and planning. As well as voluntary movement and langauge.
what is the role of the occipital lobe?
distance and depth perception, memory formation and face recognition
what is the role of the temporal lobe?
auditory information and encoding memory
what is the role of the frontal inferior gyrus?
processing of speech and language in brocas area
what is the function of the corpus callosum?
ensures both sides of the brain can communicate and send signals to each other
what is the role of the hippocampus?
major role in learning and memory and flight or fight reaction
what is the role of the cerebellum?
making postural adjustments in order to maintain balance and sensory systems
what is the role of the ventral striatum?
reward processing and desicion making
what is the role of the parietal lobe?
language processing
what is the role of the primary motor cortex?
makes muscles move
what is the role of the Brocas area?
speech production (lips, jaw, tounge)
what is the role of the wenikes area?
speech comprehension
what is the aim of sperry’s study?
Sperry used split brain patients to show that each hemisphere: possess an independent stream of conscious awareness and has its own separate chain of memories that are inaccessible to the other
what are the independent and dependent variables?
iv: having a split brain
dv: participants ability to perform a variety of visual and tactile tests
what is the experimental method?
quasi experiment
or case study
what is the design
repeated measures design
what was the sampling technique?
opportunity sample
what was the sample?
11 people
1st patient (male) had surgery over 5 and a half years before the study
2nd patient (female) had her surgery more than 4 years before the surgery
the other 9 patients had their surgery at varying times but not long before the study
what does contralateral control mean?
movement of each side of the body is controlled by the opposite side of the brain
what does localisation mean ?
certain functions take place in particular areas of the brain in both hemispheres
what does lateralisation mean
certain functions take place in one hemisphere not both
describe the visual tests
stimuli was presented to one visual field for 1\10th of a second too quick for eye movement and so information is presented to one hemisphere only .
P’s were then asked to identify the picture or word
describe the tactile tests
an object is presented to either the right or left hand. however the participant cannot see what the object is .
what are the controls of this study
1 eye is covered
the image is flashed for 1/10th of a second
board preventing the view
explain what happens when the tactile stimuli is presented to different hands
objects put in the right hand can be described and named however participants can can only make wild guesses about objects placed in their left hand
key theme question
who- 11 split brain patients
aim-to show each hemisphere possess an independent stream of conscious awareness and has its own seperate chain of memories
how- conducting tests by presenting visual and tactile information
findings-
area question
assumption- different areas of the brain are responsible for different behaviours
aim
findings
ethical considerations
protection from harm and consent
what are some similarities between sperrys and caseys study
quasi experiments
repeated measures design
opportunity sample
what are some differences between sperrys and caseys study
S-snapshot
C-longitudinal
