Neuropace RNS 5000 User Programming Manual page 62

Tablet Instructions
The ECoG in the bottom of Figure 39 below shows a developing seizure that corresponds in time
with the short-term power change trend line (red) and the long-term power change trend line (blue).
The power change detector works by comparing the normalized ECoG length (length per second) in a
short-term trend window (typically 1 to 4 seconds, red line in graph) to the normalized ECoG length in
a long-term trend window (typically 1 to 2 minutes, blue line in graph).
Figure 39 Power Change detector example
Detection occurs when the difference between the short-term and long-term trend windows exceeds a
programmed S
ENSITIVITY
earlier and more frequent detections. The D
(in seconds). Shorter D
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RNS System Programming Manual
percentage (typically 37.5% to 100%). Lower S
ETECT
settings result in earlier and more frequent detections.
ETECT
ENSITIVITY
setting specifies the length of the short-term trend
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settings result in