BCoughlin
BCoughlin
About
- Username
- BCoughlin
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- Boston
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Comments
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This is not the exact same recording, just one I happened to be working with, but the point is still illustrated here: notch filtering does not remove these bands while high-pass filtering does. Filters generated with the eeglab built-in; actual val…
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That paper says that all the analyzed signals have been filtered at least above 0.5 Hz (see section 2.2.1), so I wouldn't expect they would see this. All I have done is high pass filter the data for those plots - no notch filter. You can see in t…
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I didn't mean to imply that there are no physiological signals at these frequencies, but that what these spectrograms are showing are not physiological as evidenced by how consistent they are in frequency and power. I looked at your links and Pubmed…
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Surely this isn't a physiological signal, though. It is remarkably consistent over the entirety of that recording - it's cropped to an hour above, but is consistent on all our Cyton recordings. A recording from a different subject shows the same pat…
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@Billh Thanks for the insight. It does seem like a very steady fluctuation since the bands are very consistent, no? Is that something about the hardware possibly? @wjcroft I realize these filter values are a little out of the ordinary but I wante…
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Hi @wjcroft. Thanks for the link, I had searched and another user with a similar goal - trying to use the audio out from puredata for biofeedback (http://openbci.com/forum/index.php?p=/discussion/comment/7971#Comment_7971) though it seems like it ne…
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After recently upgrading my computer I had similar problems with the GUI failing to launch and showing a blank screen, even with up to date Open GL and graphics card drivers. However, I was able to solve this by changing my Nvidia driver from a Game…
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Hi William, Thanks for pointing me in the right direction. I'll be able to start working on this today. -Brian