30 questions
Following juggling practice, the structural changes in the volunteers' brains were described as...
transient and selective
permanent and globalised
transient and globalised
permanent and selective
The sample comprised ....
21 females and 3 males
3 females and 21 males
23 females and 21 males
21 males and 23 females
The mean age of the participants was...
22
32
42
52
The juggler and non-juggler groups were matched according to...
age and sex
intelligence and reaction time
co-ordination and extroversion
perseverance and prior juggling experience
Both groups were inexperienced in juggling at the time of their first brain scan.
True
False
How many months elapsed between scan 1 and scan 2?
2
3
4
6
What juggling trick did the jugglers have to learn?
Three-ball cascade
Three-ball reverse cascade
Five-ball cascade
Five-ball reverse cascade
The second scan was given when the Pps had become skilled jugglers. Skilled was operationalised as 'being able to juggle for at least...'
20 seconds
30 seconds
40 seconds
60 seconds
A third scan was carried out ....... months later;
1
3
5
9
Jugglers were not allowed to practice between months 3 and 6
true
false
Most people were still able to juggle by the time of the third scan
true
false
Draganski's study used ..... brain scans
MRI
fMRI
PET
CAT
At scan 1 there was a significant difference between the juggler and the non-jugglers in the amount of grey matter in the temporal region.
true
false
At scan 2, the juggler group had significantly more grey matter in the ............ than the non-jugglers.
mid-temporal area .
intraparietal gyrus
orbito-frontal region
striatum
At scan 2, the jugglers group showed significantly more grey matter in the ............ than the non-jugglers
intraparietal sulcus
intratemporal sulcus
cerebellum
amygdala
At scan 2, the juggler group had significantly less grey matter in the intraparietal sulcus than the non-jugglers
true
false
By the third scan the jugglers' increase in grey matter had....
decreased
increased even further
The non jugglers also showed some increase in grey matter between scans 1 and 2 but not as much as the jugglers
true
false
The jugglers' brain scans showed significantly less grey matter at scan 3 (compared to scan 2) in regions associated with the processing and storage of complex visual motion.
true
false
Draganski et al. (2004) concluded that juggling and consequently the perception and spatial anticipation of moving objects, is a stronger stimulus for structural plasticity in the
visual areas of the brain
motor areas of the brain
One problem with the study is that the brain regions may have undergone change simply due to the passage of time between scans
false
true
The passage of time cannot be said to be responsible for the change in size of the brain regions between scans because
the non-juggling control underwent no such change
synaptogenesis take years not months
The people who gained most grey matter between scans 1 and 2 were
male
the youngest
the people who practiced the most
people with zero juggling experience
The fact that the people were learning to juggle purely for the purpose of an experiment means the study could be seen to lack...
ecological validity
reliability
generalisability
experimental realism
In real life the level of synpatogenesis may be affected by factors such as stress
true
false
In a follow up study Draganski scanned the brains of how many medical students before and after their final exams,
8
38
83
138
In the medical students follow-up study Draganski found increased grey matter the ..... in the early days after the exam, which he put down to the many hours spent revising.
posterior hippocampus
anterior amygdala
insula
orbito-frontal cortex
Three months after their exams, Draganki noted that the medical students' hippocampi had shrunk back down to their original size.
true
false
Stress increases our secretion of corticosterone and this substance is associated with...
dendritic retraction
axonal sprouting
cortical thickening
reverse learning
Brain scans showed that medical students hippocampi continued to increase in size once their final medical exams were over.
true
false