Multichannel Systems NeuroExplorer - Manual (Page 58)

2.10. Autocorrelograms
Autocorrelogram shows the conditional probability of a spike at time t0+t on the condition that there is
a spike at time t0.
Parameters
Parameter Description
XMin Time axis minimum in seconds.
XMax Time axis maximum in seconds.
Bin Bin size in seconds.
Normalization Histogram units (Counts/Bin, Probability or Spikes/Second). See Algorithm
below.
Select Data If Select Data is From Time Range, only the data from the specified (by
Select Data From and Select Data To parameters) time range will be used
in analysis. See also
Data Selection Options .
Select Data From Start of the time range in seconds.
Select Data To End of the time range in seconds.
Int. filter type Specifies if the analysis will use a single or multiple interval filters.
Interval filter Specifies the interval filter(s) that will be used to preselect data before
analysis. See also
Data Selection Options .
Create filter on-the-fly Specifies if a temporary interval filter needs to be created (and used to
preselect data).
Create filter around Specifies an event that will be used to create a temporary filter.
Start offset Offset (in seconds, relative to the event specified in Create filter around
parameter) for the start of interval for the temporary filter.
End offset Offset (in seconds, relative to the event specified in Create filter around
parameter) for the end of interval for the temporary filter.
Fix overlaps An option to automatically merge the overlapping intervals in the temporary
filter.
Overlay Graphs An option to draw several histograms in each graph. This option requires
that Int. filter type specifies that multiple interval filters will be used (either
Table (row) or Table (col)).
Smooth Option to smooth the histogram after the calculation. See Post-Processing
Options for details.
Smooth Filter Width The width of the smooth filter. See Post-Processing Options for details.
Draw confidence limits An option to draw the confidence limits.
Confidence (%) Confidence level (percent). See Confidence Limits for details.
Conf. mean calculation An option that specifies how the mean firing rate (that is used in the
derivation of the confidence limits) is calculated.
There are 2 options: Use data selection and Use all file. See
Confidence
Limits for details.
Conf. display An option to draw confidence limits either as horizontal lines or as a
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