make script be paced by triggers of the scanner

Author: Remi-Gau

audioLocTranslational.m

@@ -63,7 +63,7 @@
 
     getResponse('start', cfg.keyboard.responseBox);
 
-    WaitSecs(cfg.timing.onsetDelay);
+    waitFor(cfg, cfg.timing.onsetDelay);
 
     %% For Each Block
 
@@ -84,14 +84,20 @@
             thisEvent.direction = cfg.design.directions(iBlock, iEvent);
             % thisEvent.speed = cfg.design.speeds(iBlock, iEvent);
             thisEvent.target = cfg.design.fixationTargets(iBlock, iEvent);
+            
+            % we wait for a trigger every 2 events
+            if cfg.pacedByTriggers.do && mod(iEvent, 2) == 1
+                waitForTrigger( ...
+                    cfg, ...
+                    cfg.keyboard.responseBox, ...
+                    cfg.pacedByTriggers.quietMode, ...
+                    cfg.pacedByTriggers.nbTriggers);
+            end
 
             % % % REFACTOR THIS FUNCTION % % %
-
             % play the sounds and collect onset and duration of the event
             [onset, duration] = doAudMot(cfg, thisEvent);
 
-            % % % REFACTOR THIS FUNCTION % % %
-
             thisEvent.event = iEvent;
             thisEvent.block = iBlock;
             thisEvent.keyName = 'n/a';
@@ -116,13 +122,13 @@
             saveResponsesAndTriggers(responseEvents, cfg, logFile, triggerString);
 
             % wait for the inter-stimulus interval
-            WaitSecs(cfg.timing.ISI);
+            waitFor(cfg, cfg.timing.ISI);
 
         end
 
         eyeTracker('StopRecordings', cfg);
 
-        WaitSecs(cfg.timing.IBI);
+        waitFor(cfg, cfg.timing.IBI);
 
         % trigger monitoring
         triggerEvents = getResponse('check', cfg.keyboard.responseBox, cfg, ...
@@ -134,7 +140,7 @@
     end
 
     % End of the run for the BOLD to go down
-    WaitSecs(cfg.timing.endDelay);
+    waitFor(cfg, cfg.timing.endDelay);
 
     cfg = getExperimentEnd(cfg);
 

setParameters.m

@@ -31,6 +31,8 @@
 
     % MRI settings
     cfg = setMRI(cfg);
+    
+    cfg.pacedByTriggers.do = true;
 
     %% Experiment Design
 
@@ -50,15 +52,35 @@
     % IBI
     % block length = (cfg.eventDuration + cfg.ISI) * cfg.design.nbEventsPerBlock
 
+    cfg.timing.eventDuration = 0.850; % second
+
     % Time between blocs in secs
-    cfg.timing.IBI = 1.8; % 8;
+    cfg.timing.IBI = 1.8;
     % Time between events in secs
     cfg.timing.ISI = 0;
     % Number of seconds before the motion stimuli are presented
-    cfg.timing.onsetDelay = .1;
+    cfg.timing.onsetDelay = 0;
     % Number of seconds after the end all the stimuli before ending the run
     cfg.timing.endDelay = 3.6;
 
+    % reexpress those in terms of repetition time
+    if cfg.pacedByTriggers.do
+
+        cfg.pacedByTriggers.quietMode = true;
+        cfg.pacedByTriggers.nbTriggers = 1;
+
+        cfg.timing.eventDuration = cfg.mri.repetitionTime / 2 - 0.04; % second
+
+        % Time between blocs in secs
+        cfg.timing.IBI = 1;
+        % Time between events in secs
+        cfg.timing.ISI = 0;
+        % Number of seconds before the motion stimuli are presented
+        cfg.timing.onsetDelay = 0;
+        % Number of seconds after the end all the stimuli before ending the run
+        cfg.timing.endDelay = 2;
+    end
+
     %% Auditory Stimulation
 
     cfg.audio.channels = 2;