add condition to not redraw static dots in a different position within one event

Author: marcobarilari

subfun/doDotMo.m

@@ -1,7 +1,7 @@
 % (C) Copyright 2018 Mohamed Rezk
 % (C) Copyright 2020 CPP visual motion localizer developpers
 
-function [onset, duration] = doDotMo(cfg, thisEvent, thisFixation)
+function [onset, duration] = doDotMo(cfg, thisEvent, thisFixation, iEvent)
     % Draws the stimulation of static/moving in 4 directions dots or static
     %
     % DIRECTIONS
@@ -30,6 +30,7 @@
 
     while framesLeft
 
+            
         [dots] = updateDots(dots, cfg);
 
         %% Center the dots
@@ -40,15 +41,21 @@
         thisEvent.dot.positions = (dots.positions - cfg.dot.matrixWidth / 2)';
 
         %% make textures
-
-        dotTexture('make', cfg, thisEvent);
+        
+        if strcmp(cfg.design.localizer, 'MT_MST') && strcmpi(thisEvent.trial_type, 'static') && ~mod(iEvent,2)
+            
+        else
+            
+            dotTexture('make', cfg, thisEvent);
+            
+        end
 
         apertureTexture('make', cfg, thisEvent);
 
         %% draw evetything and flip screen
 
         dotTexture('draw', cfg, thisEvent);
-
+        
         apertureTexture('draw', cfg, thisEvent);
 
         thisFixation.fixation.color = cfg.fixation.color;