Multichannel Systems STG3008-FA Manual - Manual (Page 36)

STG3008-FA Manual
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3. On the Settings menu, click Auto Sync to enable the Auto Sync feature. The Sync Out protocols
will be autocreated in synchrony with the pulse protocols on the assigned channels, will show up
in the WYSIWYG window immediately, and will be downloaded onto the STG with your next
download. (Please make sure that the display and download options are appropriate, that is,
all necessary Sync Out channels are selected.) The worksheets of the Sync Out channels assigned
to the Auto Sync feature will be unavailable, that is, you cannot edit them manually. The
following screen shot shows an example of a monophasic 100 μs voltage pulse on channel 1
and the corresponding Auto Sync pulse (Pre Time 0 μs, Post Time 100 μs) on Sync Out 1.
4. If you later choose to edit the Sync Out worksheets of the active file manually, you can deselect
the Auto Sync feature on the Settings menu. Any information in the Sync Out worksheets that
was there before the Auto Sync option was enabled will be restored; and all worksheets will be
available for manual editing.
5.6 Adjusting the Stimulus Intensity Level
After having programmed the stimulus protocol, you can either download the protocol "as is", or
you can adjust the stimulus intensity level, that is, choose a percentage (from 0 to 200 percent)
of the programmed amplitudes, independently for each of the up to 8 channels. You can adjust
the level offline and download the information onto the stimulus generator manually
afterward, or you can adjust the level on-the-fly, without stopping the running stimulation.
This feature is especially convenient for testing out thresholds that evoke a biological response.
Note: The error messages that are displayed when the stimulus amplitude is not set to zero at
the end of the protocol or when the time length of stimulus protocols is different on individual
channels can present a nuisance when adjusting the level on-the-fly. These error messages can
be switched off by deselecting the option Enable Compiler Warnings on the Settings menu.
1. On the Edit menu, click Amplitude. The Amplitude dialog box opens. You can drag and drop
it anywhere you like on the screen, also outside the main window of the MC_Stimulus II program.
This is especially convenient when you are using two monitors.
2. Select the option Auto Download if you want to adjust the stimulus intensity level on-the-fly.
Deselect the option if you want to download the changes manually later.
3. Select the option Change All if you want to adjust the stimulus intensity to the same level
on all channels. Deselect the option if you want to set individual channels to different levels.
4. Drag the slider with the mouse for adjusting the stimulus intensity in the range of 0 to200
percent of the programmed stimulus amplitudes.
The WYSIWYG display is updated automatically. The worksheet is not updated. It always relates
to the stimulus protocol that you programmed initially. If Auto Download is selected, changes
are immediately downloaded onto the stimulator after releasing the slider, and the stimulus
protocol is restarted from the beginning, with the adjusted stimulus intensity level.
5. If Auto Download was not selected, you need to download the stimulus protocol manually
for changes to take place.