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Tablet Instructions
•
Normally you want to touch near the beginning of the pattern in order to define a pattern that
will be detected promptly after it begins. Detection settings should promptly detect ECoG
activity and not detect on baseline activity.
The software automatically applies a suggested detector (shown in the D
settings that fit the waveform pattern in that 3-second window (or region of interest, ROI), and
simulates detection, showing the detection flags the chosen pattern would apply to this
ECoG—and to all the patient's other stored ECoGs shown in smaller size below. It is
recommended to review simulated detection activity on an ensemble of stored ECoGs before
finalizing the detection settings.
•
To hide the simulation on the ECoG, select H
select C
LEAR
•
At any point, you can select a different ECoG by selecting an ECoG thumbnail along the
bottom; swipe left or right to view all available thumbnails.
•
By default, if you define both patterns, detections will occur for both patterns on this channel.
The channel is indicated by the filled oval at top center of the dialog, from 1 to 4 top to
bottom. Use the C
pattern.
Note: If simulating performance of a 2-channel detection set, be sure to select ECoGs that
contain ECoG activity patterns you wish to detect in both channels.
•
Make adjustments to the parameters applicable to the detection tool using the sliders
available and observe the effects on the simulation. For S
A
, the sliders adjust A
CTIVITY
sliders adjust S
•
All these detection parameters affect sensitivity. Adjustments that increase sensitivity
tend to increase how early and how often the pattern is detected; adjustments that
decrease sensitivity tend to decrease how early and how often the pattern is detected.
•
Detection settings should be programmed for early detection of activity. Detection
settings that result in early activity detection usually also result in numerous detections;
this is expected and acceptable behavior.
•
The parameter values are shown to the right of each slider. For all four parameters, lower
values result in greater sensitivity.
•
The M
C
ORE
Controls (see page 63).
7. Select D
ONE
saved until you save it in the next step.
®
RNS
System Programming Manual
.
C
button to change the channel on which to detect the
HANGE
HANNEL
MPLITUDE
(%) and D
ENSITIVITY
button gives access to additional adjustment options and Advanced
ONTROLS
at upper right to close the D
. To remove the selection on the ECoG,
IDE
PIKE
(%) and D
(seconds). For P
URATION
(seconds).
ETECT
P
dialog. The detection set is not
EFINE
ATTERNS
field) and
ETECT
A
and R
CTIVITY
HYTHMIC
C
OWER
HANGE
51
, the
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