How do I create frequency and voltage topographic maps?
Creating_Frequency_and_Voltage_Topographic_Maps_in_Persyst (PDF)
Spikes aren’t showing up
Verify that study is processed Click on Track Acquisition and compare time shown in trends to time at end of study Manually check for trend results files in study location Change sensitivity to High This may indicate whether anything was marked at lower perception values Verify any issues with the recording workflow Verify that study [...]
How would we detect regional slowing using Persyst?
The Alpha/Delta ratio panel would be helpful for examining regional slowing. In this screenshot from the primary study that we looked at yesterday you can see that following the seizure (which starts at the dotted line cursor) the slowing on the left (blue line in the ADR trends) is much more pronounced compared to the [...]
Can Persyst Observe Hyper Motor Seizures?
Yes. Persyst Artifact Reduction isolates and selectively reduces muscle artifact. Even though the motor activity might be a visual cue for the seizure onset, the Persyst seizure detector is focused on the underlying EEG patterns, not on the muscle activity.
What trend do I use to look at Posterior Dominant Rhythm (PDR) / rhythmic alpha?
The Rhythmicity spectrogram clearly shows PDR.
Does Persyst access PHI?
PHI (Protected Health Information) Persyst software is a medical device. Just as a heart rate monitor has access to PHI, Persyst Software has access to PHI. Also, like a heart rate monitor, the data collected / analyzed resides entirely within your control at all times and like a heart rate monitor manufacturer, Persyst Development Corporation [...]
Trending isn’t showing up
Check registration and license type Launch Persyst standalone to verify the program opens Check for correct background color and .mmx file to indicate whether Deploy Settings was run. If Persyst opens, navigate to Preferences | General Preferences | About and check the type of license (EMU/AMB licenses do not support trending). If the software is [...]
What is the best trend for looking at a Wada test?
(a.k.a. Amytal Study or intracarotid sodium amobarbital procedure (ISAP)) A combination of trends on the Comprehensive Trend Panel are best for observing the slowing and return to baseline. On the screenshot below the left injection is marked and also a segment before the injection and one just before the right injection where the EEG looks [...]
How do I unlock / register my Persyst software?
Go to Start | All Programs | Persyst (or Insight) | RegCenter. Select “Request Activation License” (or "Save to File" on older versions). Fill in all of the information. In the field marked "Registration Number" insert your Persyst Software Registration Number (which should be on your CD box or in download email). Press "OK" and [...]