3Brain BioCAM X, User Manual

Page: 36 / 45

36
Create a group of relevant channels
You can create groups of channels according to your selection or a given statistical information. Here
we create a group considering channels’ global mea firing rate (MFR) values. Global MFR is computed
for each MEA channel as the number of detected spikes divided by the length of the recording (spk/s).
To create a group of most relevant and active channels:
1. Click on the MFR tab under your Experiment document.
2. Click on the arrow aside the Global MFR panel to expand the panel. The new enlarged panel contains
a colored map representing the activity on the entire MEA as global MFR. For each channel the global
MFR value is converted into a color according to the below color scale.
3. Set the Range definition left and right values to 0.200 and 4.000 spk/s respectively. In this way, we
consider only those channels whose global MFR ranges between such values. The number of in-
range channels should be 1135 with such settings.
4. Click on the button to create a new channel group and then in the new opening window click OK.
1. Click on MFR tab
3. Set Range values
to 0.200 and 4.000 spk/s.
4. Click
to create a channels
group made up by
in-range channels.
2. Click on Global MFR
Stats arrow
to expand the panel
Stats should indicate 1135 in-range
channels.