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Chapter 7
1 week
1 week
fMRI (no cTBS: baseline)
Baseline (no cTBS) run followed by cTBS run: N = 14
cTBS run followed by baseline (no cTBS) run: N = 13
Task (~ 32 min)
Break - cTBS
cTBS
fMRI (cTBS stimulation)
10.02 (0.19) min
10.61 (0.29) min
94.02 (0.92) min
84.62 (1.33) min
93.27 (0.96) min
Break
fMRI (no cTBS: baseline)
fMRI (cTBS stimulation)
session 1
session 2
session 3
Example sessions for two subjects.
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run 1
run 2
run 4
run 5
run 6
run 1
run 2
run 4
run 5
run 6
run 3
Example
subject X
Example
subject Y
A
B
Examples of one session for subject X and Y
Task (~ 32 min)
Task (~ 32 min)
Task (~ 32 min)
run 3
run 1
run 2
run 1
run 2
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Figure 7.2
Experimental design
A:
Across experimental sessions, each participant received stimulation of the anterior prefrontal cortex,
dorsolateral PFC, and premotor cortex. The order was counterbalanced between participants (indicated
with black, grey and white thunderbolts). Stimulation site order was counterbalanced across participants.
Vertical dashed lines indicate a break.
B:
The order (stimulation and baseline condition) in which a participant would
always
perform the tasks
(
figure 7.3
) was counterbalanced between participants. Values represent mean (SD) time in minutes
(min) between the start of two runs and between cTBS administration and the start of the subsequent
fMRI session. In addition, in the bottom panel the mean time (across participants and sessions) between
cTBS and the start of the baseline session is specified. cTBS: continuous theta burst stimulation;
transcranial magnetic stimulation (TMS).