Psth versus time – Multichannel Systems NeuroExplorer User Manual
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2.26. PSTH Versus Time
This analysis shows the dynamics of the perievent histogram over time. It calculates multiple PST
histograms using a "sliding window" in time. Each histogram is shown as a vertical stripe with colors
representing the bin counts. Horizontal axis represents the position of the sliding window in time.
Parameters
Parameter
Description
Reference
Specifies a reference neuron or event.
XMinPSTH
Histogram time minimum in seconds.
XMaxPSTH
Histogram time maximum in seconds
BinPSTH
Histogram bin size in seconds.
Start
Start of the first sliding window in seconds.
Duration
Duration of the sliding window in seconds.
Shift
How much sliding window is shifted each time.
Number of shifts
The number of sliding windows to be used.
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).
Sliding window axis
direction
Direction of the sliding window axis (horizontal or vertical).
Sliding window axis
alignment
Allows to specify what values are shown in the sliding window axis. There
are two options: Start of Window and Center of Window.
Suppose your data has the strongest correlation at 50 seconds. This
means that the window that has 50 seconds as its center will show the
highest PST values. If the window width is 20 seconds, it will be the
window [40,60]. If you are using 'Start of window' option, you will see the
peak at 40 instead of 50 seconds. However, with 'Center of window' option,
the peak will be at 50 seconds.
Smooth
Option to smooth the histogram after the calculation. See
for details.
Smooth Filter Width
The width of the smooth filter. See
for details.
Send to Matlab
An option to send the matrix of numerical results to Matlab. See also
.
Matrix Name
Specifies the name of the results matrix in Matlab workspace.
Matlab command
Specifies a Matlab command that is executed after the numerical results
are sent to Matlab.
Send to Excel
An option to send numerical results or summary of numerical results to
Excel. See also
Sheet Name
The name of the worksheet in Excel where to copy the numerical results.
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