Poincare Maps

For each spike, a point is displayed where the X coordinate of the point is the current interspike interval and Y coordinate of the point is the preceding interspike interval.

Parameters

Parameter	Description
Min Interval	Time axis minimum in seconds.
Max Interval	Time axis maximum in seconds
Log Axis Scale	An option to use Log10 axis scales.
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.

Summary of Numerical Results

The following information is available in the Summary of Numerical Results

Column	Description
Variable	Variable name.
YMin	Y axis minimum.
YMax	Y axis maximum.
Spikes	The number of spikes used in calculation
Mean Freq.	Mean firing rate.

Algorithm

For each spike that occurred at time t[i], Poincare plot shows the point with the coordinates

(t[i] - t[i-1], t[i-1] - t[i-2]).

That is, the X coordinate of the point is the current interspike interval and the Y coordinate of the point is the preceding interspike interval.