Multichannel Systems NeuroExplorer - Manual (Page 74)

2.15. Perievent Rasters
This analysis shows the timestamps of the selected variable relative to the timestamps of the
reference variable.
Parameters
Parameter Description
Reference Type Specifies if the analysis will use a single or multiple reference events.
Reference Specifies a reference neuron or event (or a group of reference neurons or
events).
XMin Time axis minimum in seconds.
XMax Time axis maximum in seconds
Markers An option to display additional events (as markers - triangles, squares,
etc.) in the perievent raster.
Background Intervals An option to draw intervals in the raster background.
Trial Order This option allows you to specify how the raster lines are drawn. The raster
lines (corresponding to reference events) can be drawn in the order of
reference events (with the first event on top, the last at the bottom of the
perievent raster), or in the reverse order (the first event at the bottom of the
raster display, the last event at the top). This option is ignored if Sort trials
parameter is not None.
Sort trials An option to sort raster lines.
By default, the raster lines (corresponding to reference events) are drawn
in the order specified by the Trial Order parameter. This option allows you
to display reference events in a different order. For example, in behavioral
experiments, you can sort the trials according to the latency of the
response.
Sort event Specifies how to identify the timestamps (in Sort ref. variable) that will be
used in sorting.
Sort ref. Specifies event variable that will be used to sort trials.
Histogram An option to draw a histogram.
Bin Histogram bin size in seconds.
Normalization Histogram units (Counts/Bin, Probability or Spikes/Second). See Algorithm
below.
No Selfcount An option not to count reference events if the target event is the same as
the reference event (prevents a histogram to have a huge peak at zero
when calculating PSTH versus itself).
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 .
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