Reverse correlation – Multichannel Systems NeuroExplorer User Manual
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2.30. Reverse Correlation
This analysis is used for estimation of receptive fields in vision research. The analysis calculates the
average visual stimulus that preceded the spike.
Parameters
Parameter
Description
Reference
the variable that contains timestamps of the stimuli.
Stim. Sequence File
The path of the text file that contains the sequence of images used for
stimulation. See Algorithm below for file format description.
Char. per pixel
The number of characters per pixel in image file.
Pixels in Row
The number of pixels in a row for each stimulus image.
Rows in Image
The number of rows of pixels in each stimulus image.
Cache Stim. Data
An option to cache stimulus image data. If this option is selected, the
image data is loaded once and stored in memory (until a different stimulus
sequence file is specified). To clear cache, run this analysis once with this
option disabled.
XMin (deg)
Minimum of the X axis of the average stimulus display (in degrees).
XMax (deg)
Maximum of the X axis of the average stimulus display (in degrees).
YMin (deg)
Minimum of the Y axis of the average stimulus display (in degrees).
YMax (deg)
Maximum of the Y axis of the average stimulus display (in degrees).
Time Min (sec)
Time minimum in seconds.
Time Max (sec)
Time maximum. For example, if Time Min = -0.4 and Time Max = 0,
NeuroExplorer will analyze all the stimuli that were presented up to 400
msec before each spike.
Time Bin (sec)
Time bin.
Display
This option specifies what view of the average stimulus will be displayed.
See Algorithm below.
Show Slice At
This option specifies the slice that will be shown. The units and valid range
depend on the Display option See Algorithm below.
Z Min
Color scale minimum.
Z Max
Color scale maximum.
Smooth Colors
An option to smooth colors of the average stimulus matrix.
Matrix Scale
An option on what color scale to use when drawing the matrix.
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
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