Hello,
I've been preprocessing some MEG recordings, and I'm trying to run a general SSP on the empty-room noise recording to try and correct for a couple of wonky sensors, but this operation causes my computer to completely freeze, such that I was forced to hard-boot it. Because of this, I unfortunately was not able to obtain an error message, but I believe the problem is just that my computer doesn't have the resources to handle this operation. I'm hoping that someone can take a look at the details below and tell me whether that makes sense, or whether there could be something else going wrong.
RECORDING:
Channels: 297; duration: 120s; Sampling: 2400Hz;
conditions: empty room (noise)
Preprocessing: notch filters at 60, 120, 180Hz, Band pass: 0.3-40Hz
SOFTWARE:
Brainstorm 25-Jun-2020
MATLAB R2020a
COMPUTER SPECIFICATIONS
model: Lenovo ideapad 320-15IKB Touch
Processor: Intel Core i3-7100U @2.40GHz
Installed RAM: 6.00GB (5.88 usable)
System type: 64-bit OS, x64-based processor
Free space on hard-drive: 659GB
OS: Windows 10 Home, Version 1909
PROCESS:
SSP: Generic;
time: ALL; event name: (empty/continuous); Frequency band: 5-50Hz;
Sensor types: MEG;
Compute using existing SSP: YES
Save averaged artifact: NO
Method to calculate projectors: PCA 1 component/second
NB: these exact same settings functioned appropriately when I reduced the time window to 60s, and took ~10 minutes, but caused noticeable slowdown for my computer until it finished.
ERROR DESCRIPTION:
After hitting "run", the progress bar for "processing recordings" appears, stays at 0% for ~1min, then abruptly reaches 100%, at which point my computer freezes completely. I left my computer for ~1hour to see if there was any change, but there was not, and I was forced to hard-boot. The crash occurs reliably every time I have tried this operation. Manually tagging the wonky-looking sensors as Bad before running the SSP does not prevent the crash.
Let me know if there's any other information that could help pinpoint the error, and thanks for your help,
-CJ