IB Psychology SL Biological Level of Analysis (BLOA) Study summary (16 Studies)
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Course
IB Psychology SL
Institution
Gymnasium
16 Studies for BLOA IB Psychology are summarized based on IB Psychology Textbooks, Study Guides and Original Studies. The studies cover all BLOA topics.
Methods: Quasi experiment
Techniques: MRI YYfht.ua , → potential Naum
Maguire
( stuns , claustrophobia , peoplewith
Localization
Neuroplasticity et al ( 2000) *sohu.it#iibmoaameoFounw
Knowing beforehand ensures
.
participate
to not
opportunity
.
Aim :
to
compare brain structure
people with extensive
in
nouigational skills ( London taxi drivers) and controls .
Participants :
night handed male
• 16 drivers The
-
average
taxi
.
driving experience ( as a taxi driver ) was the 3 .
years .
Control handed
50
healthy
'
male
night
•
group
-
:
who did
subjects not derive ataxi .
Method quasi experiment ( comparison of two pne
: .
-
-
existing guoups ) .
correlational
•
study in the part where during
volume
experience was combated with grey matter
• MPI was used to measure the variables .
Procedure
structural MRI
obtained
: • swans were
and
compound between drivers and
non
-
drivers .
correlated
years ofdriving experience was taxi
•
with the results
of MRI soars .
Results taxi drivers had increased matter
guy
: •
volume in the
postilion hippocampus , compared
to control
control
group .
had increased
quo up subjects
•
guy
,matter volume in the antoniou
hippocampus .
• conurbation between the
years taxi of driving taxi
and
matter volume : the
guy tongue dude
they a
,
the
(
lounger the volume of
arteriole )
posterior hippocampus
vice versa
fou .
redistribution
of grey matter occurred in the
hippocampus of taxi duiveus fuom anterior to ,
posteriori .
Conclusion nudistuibution of matter in the
grey
:
hippocampus of in taxi devious
uesponse
to
(gaining
navigational experience .
involved
the
posterior hippocampus is known to be
information
in
using previously learned
spatial
while the anterior
, hippocampus known is
to be ues
passible foie banning spatial info ) new
Limitations : . observed
only males .
small
•
sample
influence debate did
nature nurture the
driving
• vs :
the
changelead
hippocampus did
in the
langue them to become
,
ou
oluiueu ?
hippocampus a taxi
data ueceived
Strengths : .
quantitative .
•
allowed to understand that the hippocampus is
one theof pants of the brain that stones memo-
my .
,Techniques: MRI
Localization
Dragonski et al 12004)
Neuroplasticity
Aim whether stuuctuual
the buain
: to
investigate
would
changes in
occur in
response
to
puocctising a
simple juggling routine .
Participants : a self selected sample of
- volunteers with
no
prion experience of juggling .
Method experiment ; mixed
:
design .
Procedure the divided into two
:
sample was
randomly
guo ups
:
1)
Jugglers Spent three months learning
.
classic a
juggling routine with three balls
followed by three
months in which instructed to
they stop were
pwac¥s%ntuol
jugglers
Three bwain
practised juggling ( non -
( MRI)
) : never .
scans were
performed in both
groups
:
e) before the stout of the experiment .
a) one after three months .
3) one after six months .
Results : . there were no differences in brain structures
between and
jugglers non -
jugglers before the experiment .
after three months of puaetise the had
•
,
jugglers
significantly moue
guy
matter in the mid temporal
-
, ( these
responsible
owed in both
hemispheres are known to be
foie coordination of movement) .
•
after six months ( three months of non practise) -
the differences decreased , however , the still
had moue
jugglers
matter in these areas than at the
guy
first brain scan .
Conclusion matter in the buain in
guy gnaws
:
) and
learning
uesponse to
shrinks
environmental demands
the absence of stimulation (lack of
(
practise
in
) This shows that there is a cause effect
relationship
-
.
between and brown structure
leavening .
,Localization
Broca ( 1861 )
" "
Ethical considerations
Tan anonimity
( " Tan ) lost the
Context Louis Lebo to
ability
"
engine
:
speak when he was 30 He uetaineol all other .
functions however
communicate back
, ,
could not
he could
speak ;
when
" trying
"
to
,
only say tan .
Broca described Tan's
Broca 's
findings Broca :
( loss
condition
now known
arspeech aphasia
ticulated of as 's
) .
Later puocvduue when Tan died 51
:
connived out which revealed a
,
an
autopsy
of his buain was
lesion in the owed of the
fuontal hemisphere
left
( posterior inferior fuontod gyms → Buona's area )
Conclusion that articulation
controlled
:
suggests speech is
by left fuontal lobe .
Ethical considerations : ano
nimiety and confidentiality .
21 and
intensely
mean
someone ; mean
age
duration
of being in love -
4- months .
Method experiment repeated measures
design
:
, .
Variables measured in
fMRI scans .
Puouoluue :
participants were
placed
fMRI and in a
went
through the
following four steps (uepeateol
four times) :
e)
30s
viewing photograph a
of the
person they love -
a) filter activity-40s
3) photo of emotionally mutual
viewing 30s
a
acquaintance -
a) filler activity to 20s
-
Biuain responses the picture of a loved one
and a mutual acquaintance were compared .
Results
activation
:
specific pattern of
there was a
the brain
in
response to the photographs in
of the loved Activation
especially
prominent
ones .
was
the ventral
dopamine rich
in areas
tag
-
-
:
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