neuroConn DC-Stimulator, User Manual

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Chapter 5 - Software Reference Manual
48
Codes for normal stimulation
23613 35947 17155 39147 03229 37424 45931 63064 49185 48496
28303 41567 52627 05497 61961 60027 39451 16617 57242 33646
48014 27671 63004 04722 36268 19135 56227 22004 44577 03502
23373 32656 28471 36861 40410 07427 58867 49450 51847 53408
43909 13164 17897 41040 35183 03899 05830 17780 26808 31066
59571 39075 21558 31338 39136 10580 54360 62660 39029 01884
53222 39984 45973 06042 27845 24613 10889 54601 54961 29596
62691 09643 57011 50425 29108 40672 62369 41943 16208 23114
12311 32154 26822 30377 40038 04664 20596 39871 11470 40699
16119 38493 33164 30459 35482 61756 22397 26332 20164 26972
“Sham” stimulation means that the chosen stimulation mode will be displayed, but that no
stimulation will occur. Only a small current pulse will occur every 550 ms (110
µ A over
15 ms) instead of the stimulation current. The peak current lasts for 3 ms. This current pulse
enables an impedance control which reliably detects bad electrode contact or electrode
disconnection. Average current over time is not more than 2
µ A, which has no therapeutic
effect.
The user will not see any difference between sham and normal stimulation since
the device displays no information about this. The patients may feel a difference,
depending on stimulation current in normal mode.
Timing chart of current - normal stimulation
Figure 28: Timing chart of current during tDCS
In order to compare the normal with the “sham” stimulation a time chart of current in tDCS
mode is shown in Figure 28.