Multichannel Systems NeuroExplorer - Manual (Page 78)

Excel. See also Excel Options .
Sheet Name The name of the worksheet in Excel where to copy the numerical results.
TopLeft Specifies the Excel cell where the results are copied. Should be in the form
CR where C is Excel column name, R is the row number. For example, A1
is the top-left cell in the worksheet.
Matrix Scale An option on how to draw the scatter matrix (color or black and white).
Font size (% matrix) Font size in percent of scatter matrix height.
Summary of Numerical Results
The following information is available in the Summary of Numerical Results
Column Description
Variable Variable name.
YMin Y axis minimum (added for compatibility with other analyses, always 0).
YMax Y axis maximum (added for compatibility with other analyses, always 1).
Spikes The number of spikes of the neuron shown on the vertical axis used in
calculation.
Filter Length The length of all the intervals of the interval filter (if a filter was used) or the
length or the recording session (in seconds).
Mean Freq. Mean firing rate (Spikes/Filter_Length).
Hist. norm. Normalization factor. Histogram bin counts are divided by this value.
Color scale minimum Scatter matrix color scale minimum.
Color scale maximum Scatter matrix color scale maximum.
Algorithm
The main Joint PSTH matrix shows the correlations of the bin counts of two neurons around the
reference events. Histograms to the left of and below the matrix are standard perievent histograms for
two specified neurons. The first histogram to the right of the matrix shows the correlations of near-
coincident spikes around the reference events. The far-right histogram shows correlations of firings of
two neurons around reference events.
See the following paper for details on Joint PSTH analysis:
M. H. J. Aertsen, G. L. Gerstein, M. K. Habib and G. Palm. Dynamics of Neuronal Firing Correlation:
Modulation of "Effective Connectivity" J. Neurophysiol., Vol. 61, pp. 900-917, 1989.
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