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Trace randomly fell completely flat
Posted: Sat Jan 29, 2022 2:53 pm
by mikewinuob
I was wondering if anyone knows of why/has had a similar situation. I was running an experiment and everything was normal until the trace from all the electrodes randomly went completely flat. It showed no change at any point after that. The electrode offsets remained the same and nothing was changed about the hardware. Do you think this is a bug with the software?
Re: Trace randomly fell completely flat
Posted: Sun Jan 30, 2022 2:00 pm
by Coen
Did you press the keyboard shortcut PgUp or PgDn with an earlier version of ActiView than 9.00 ? If yes, then the display switched to a different (empty) group of channels. BDF file is not affected.
Best regards, Coen (BioSemi)
Re: Trace randomly fell completely flat
Posted: Tue Feb 01, 2022 1:27 pm
by mikewinuob
Thanks for your reply Coen.
I am using the newest version of Actiview. My participants could have pressed a button like up or down. Are there any other keyboard prompts I should know about/ where can we find info on this?
Re: Trace randomly fell completely flat
Posted: Tue Feb 01, 2022 1:48 pm
by Coen
Version 9.00 (latest) has the following keyboard shortcuts:
- ENTER = Start
- HOME = Reset baselines (display only)
- F1-F8 = Triggers 9-16
All other keyboard shortcuts (Up/Down, Left/Right, PgUp/PgDn) that were available in older versions of ActiView have been deleted in version 9.00.
Best regards, Coen (BioSemi)