diff --git a/circle.yml b/circle.yml
index 35bec260..20aeb385 100644
--- a/circle.yml
+++ b/circle.yml
@@ -59,7 +59,7 @@ test:
     - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('mindful_attention_awareness','web','.');"
     - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('motor_selective_stop_signal','web','.');"
     - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('mpq_control','web','.');"
-    - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('multiplication','web',pause_time=2000);"
+    - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('multiplication','web','.',pause_time=2000);"  
     - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('multisource','web','.');"
     - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('n_back','web','.');"
     - $HOME/miniconda2/bin/python -c "from expfactory.tests import circle_ci_test; circle_ci_test('number_letter','web','.');"
diff --git a/multiplication/config.json b/multiplication/config.json
index 9679b2de..333544ec 100644
--- a/multiplication/config.json
+++ b/multiplication/config.json
@@ -9,6 +9,7 @@
                  "static/js/jspsych/poldrack_plugins/jspsych-poldrack-instructions.js",
                  "static/js/jspsych/poldrack_plugins/jspsych-attention-check.js",
                  "static/js/jspsych/poldrack_plugins/jspsych-single-stim-button.js",
+                 "static/js/jspsych/plugins/jspsych-call-function.js",
                  "experiment.js",
                  "static/css/jspsych.css",
                  "static/css/default_style.css"
diff --git a/multiplication/experiment.js b/multiplication/experiment.js
index 07b219e8..5c83f489 100644
--- a/multiplication/experiment.js
+++ b/multiplication/experiment.js
@@ -28,11 +28,11 @@ var randomDraw = function(lst) {
 
 var getStim = function() {
   response = 0
-  num1 = Math.floor(Math.random() * 99) + 1
-  num2 = Math.floor(Math.random() * 99) + 1
+  num1 = Math.floor(Math.random() * 89) + 10
+  num2 = Math.floor(Math.random() * 89) + 10
   answer = num1 * num2
   var text = '<div class = centerbox><form style="font-size: 24px">' + num1 + ' * ' + num2 +
-    ' =  <input type ="text" id ="mathtext" style="font-size: 24px"></form><br></br><button class = "default_button submitButton" id = submit_button onclick = submit()>Submit Answer</button></div>'
+    ' =  <input type ="text" id ="mathtext" style="font-size: 24px"></form><br></br><button class = "jspsych-btn submitButton" id = submit_button onclick = submit()>Submit Answer</button></div>'
   return text
 }
 var submit = function() {
@@ -52,14 +52,15 @@ var num1 = ''
 var num2 = ''
 var answer = 0
 var response = 0
-var response_time = 180000
+var response_time = 60000
 var lstep = 5000
 var sstep = 1000
 var n_large_steps = 50
 var n_small_steps = 50
 var p = 0.5 // The probability of a correct response for the staircase
-var fatigue_time = 45
-
+var fatigue_start = 0
+var timelimit = 20 //time for fatigue block
+var elapsed = 0
 /* ************************************ */
 /* Set up jsPsych blocks */
 /* ************************************ */
@@ -77,7 +78,6 @@ var feedback_instruct_block = {
   timing_response: 6000
 };
 /// This ensures that the subject does not read through the instructions too quickly.  If they do it too quickly, then we will go over the loop again.
-var instruction_trials = []
 var instructions_block = {
   type: 'poldrack-instructions',
   data: {
@@ -95,11 +95,9 @@ var instructions_block = {
     }, 1010)
   }
 };
-instruction_trials.push(feedback_instruct_block)
-instruction_trials.push(instructions_block)
 
 var instruction_node = {
-  timeline: instruction_trials,
+  timeline: [feedback_instruct_block, instructions_block],
   /* This function defines stopping criteria */
   loop_function: function(data) {
     for (i = 0; i < data.length; i++) {
@@ -220,17 +218,34 @@ var fatigue_block = {
   }
 }
 
+var fatigue_node = {
+  timeline: [fatigue_block],
+  loop_function: function() {
+    elapsed = (new Date() - fatigue_start) / 60000
+    if (elapsed < timelimit) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+}
 
+var start_clock_block = {
+	type: 'call-function',
+	func: function() {
+		fatigue_start = new Date()
+	}
+}
 
 /* create experiment definition array */
 var multiplication_experiment = []
 multiplication_experiment.push(instruction_node)
-for (var i = 0; i < 2; i++) { //n_large_steps
+for (var i = 0; i < n_large_steps; i++) { 
   multiplication_experiment.push(largeStep_block)
 }
-for (var i = 0; i < 2; i++) { //n_small_steps
+for (var i = 0; i < n_small_steps; i++) { 
   multiplication_experiment.push(smallStep_block)
 }
-for (var i = 0; i < 2; i++) { //Math.floor(180000 * fatigue_time / response_time)
-  multiplication_experiment.push(fatigue_block)
-}
\ No newline at end of file
+multiplication_experiment.push(start_clock_block)
+multiplication_experiment.push(fatigue_node)
+multiplication_experiment.push(end_block)