Multichannel-systems NeuroExplorer Bedienungsanleitung PDF herunterladen (Seite 105)

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

Matlab Options.

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 Excel Options.

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Multichannel-systems NeuroExplorer Bedienungsanleitung Seite 105