Multichannel Systems NeuroExplorer - Manual (Page 87)

2.23. Power Spectral Densities
This analysis captures the frequency content of continuous variables or neuronal rate histograms.
Parameters
Parameter Description
Max Frequency Maximum frequency of the spectrum in Hz
Number of values Number of values in the spectrum.
Show Frequency From Minimum frequency to be shown in the spectrum graph.
Show Frequency To Maximum frequency to be shown in the spectrum graph.
Normalization Spectrum normalization. See Algorithm below.
Log Frequency Scale An option show Log10 frequency scale.
Smooth Option to smooth the spectrum after the calculation. See Post-Processing
Options for details.
Smooth Filter Width The width of the smooth filter. See Post-Processing Options for details.
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)).
Overlay Options Specifies line colors and line styles for overlaid graphs.
Add to Results / Bin left An option to add an additional vector (containing a left edge of each bin) to
the matrix of numerical results.
Add to Results / Bin
middle An option to add an additional vector (containing a middle point of each
bin) to the matrix of numerical results.
Add to Results / Bin An option to add an additional vector (containing a right edge of each bin)
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