Fixation Parameter Set

This is an example of a parameter set of task type 1, or fixation. The parameter which is varied randomly is led1sel, and each value of it is weighted according to the weights provided with led1wts. In connection with this, the parameter led1dur is also specified as a series of values, one for each of the values specified for led1sel. So, for example, whenever the 1st value of led1sel is used in a trial, the 1st value of led1dur will be used, and the same goes for the 2nd, 3rd, etc. values of led1sel and led1dur.

Note that all text to the right of a semicolon is a comment, and is ignored by the COM program. 

; Fixation task parameter list
 tasktyp      2		; 2=saccade
 paramset    11		; code identifying this parameter set or subtask
 led1int      4		; led1 intensity
 led1strt   100		; start measured from start of trial, msec
 led1sel      4  2 5 7 8 	; led1 selection:  4 possible values
 led1wts      4  3 1 1 2	; led1 weights:  4 possible weights
 led1dur      4  1500 1500 1100 1100 	; 4 values, linked to led1sel, msec
 azwndl1    5.0		; x window for led1/speaker1, deg
 elwndl1    5.0		; y window for led1/speaker1, deg
 spk1flg      0		; 1 if speaker1 enabled, 0 if not
 spk2flg      1		; 1 if speaker2 enabled, 0 if not
 stimtyp   GWR		; type of DSS stimulus for both speakers
 trise       40		; rise time of sound stimulus waveform, msec
 tfall       40		; fall time of sound stimulus waveform, msec
 gwfil   [jane]waves	; basename of waveform data file- .DAT at end is assumed
 gwid      n25k		; data set id name of waveform for speaker 2
 endtask

The Fixation Task Type
Com Program Documentation -- General
Task Types
Glossary of Parameters

If you have questions or comments about this documentation, please send email to jane@neurophys.wisc.edu
This page last modified on : June 25, 1996