updating instructions, timing, and probability

habit.m

@@ -14,9 +14,7 @@
 correctTrials = 0;
 
 %% instructions
-if 0
-    [onset, output] = instructions(system, 1);
-end
+[onset, output] = instructions(system, 1);
 
 %% start timing and data collection
 record(length(timing)) = struct();

private/instructions.m

@@ -1,44 +1,150 @@
-function [onset, output] = instructions(system, number, varargin)
+function [onset, output] = instructions(system, number, t, varargin)
 output.instruction = number;
-
-acceptkeys = KbName({'space','LeftArrow','UpArrow','RightArrow','Return','1'}); % Define accepted keys
-
+k = 0;
+%% positon choice options
+chest_w = 60; chest_h = 60;  
 % Instruction 1
 Screen('DrawTexture', system.w, system.tex.ocean_bottom); % Show the background
-DrawFormattedText(system.w, 'In this task you will be looking for treasure in three treasure chests', ...
+% chest graphics
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.left.x system.pos.left.y system.pos.left.x+chest_w system.pos.left.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.up.x system.pos.up.y system.pos.up.x+chest_w system.pos.up.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.right.x system.pos.right.y system.pos.right.x+chest_w system.pos.right.y+chest_h] );
+
+DrawFormattedText(system.w, 'In this task you will be looking for treasure in three treasure chests (push to continue)', ...
     'center', 'center', [255, 255, 255]); % Draw the first instruction
 Screen('Flip', system.w); % Display the content on the screen
-waitForKeys(acceptkeys, Inf);
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+    disp(k)
+end
 
 % Instruction 2
 Screen('Flip', system.w); % Clear the screen
 Screen('DrawTexture', system.w, system.tex.ocean_bottom); % Show the background again
-DrawFormattedText(system.w, 'Two keys will appear in front of two of the three chests. You can choose between these two chests with keys', ...
+% chest graphics
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.left.x system.pos.left.y system.pos.left.x+chest_w system.pos.left.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.up.x system.pos.up.y system.pos.up.x+chest_w system.pos.up.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.right.x system.pos.right.y system.pos.right.x+chest_w system.pos.right.y+chest_h] );
+
+% add keys to chests
+Screen('DrawTexture', system.w, system.tex.key,...
+    [], [ system.pos.right.x+20 system.pos.right.y+20 system.pos.right.x+chest_w system.pos.right.y+chest_h] );
+
+Screen('DrawTexture', system.w, system.tex.key,...
+    [], [ system.pos.left.x+20 system.pos.left.y+20 system.pos.left.x+chest_w system.pos.left.y+chest_h] );
+
+DrawFormattedText(system.w, 'Two keys will appear in front of two of the three chests. You can choose between these two chests with keys  (push to continue)', ...
     'center', 'center', [255, 255, 255]); % Draw the second instruction
 Screen('Flip', system.w); % Display the content on the screen
-waitForKeys(acceptkeys, Inf);
+k =0;
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+end
+
+
+% Instruction 2.5
+Screen('Flip', system.w); % Clear the screen
+Screen('DrawTexture', system.w, system.tex.ocean_bottom); % Show the background again
+% chest graphics
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.left.x system.pos.left.y system.pos.left.x+chest_w system.pos.left.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.up.x system.pos.up.y system.pos.up.x+chest_w system.pos.up.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.right.x system.pos.right.y system.pos.right.x+chest_w system.pos.right.y+chest_h] );
+
+% add keys to chests
+Screen('DrawTexture', system.w, system.tex.key,...
+    [], [ system.pos.right.x+20 system.pos.right.y+20 system.pos.right.x+chest_w system.pos.right.y+chest_h] );
+
+Screen('DrawTexture', system.w, system.tex.key,...
+    [], [ system.pos.left.x+20 system.pos.left.y+20 system.pos.left.x+chest_w system.pos.left.y+chest_h] );
+
+DrawFormattedText(system.w, 'Button 1 will go LEFT. Buttons 2 and 3 will go UP. Button 4 will go RIGHT (push to continue)', ...
+    'center', 'center', [255, 255, 255]); % Draw the second instruction
+Screen('Flip', system.w); % Display the content on the screen
+k =0;
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+end
+
+
+% Instruction 2.7
+Screen('Flip', system.w); % Clear the screen
+Screen('DrawTexture', system.w, system.tex.ocean_bottom); % Show the background again
+% chest graphics
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.left.x system.pos.left.y system.pos.left.x+chest_w system.pos.left.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.up.x system.pos.up.y system.pos.up.x+chest_w system.pos.up.y+chest_h] );
+Screen('DrawTexture', system.w, system.tex.chest_sprites{1,1},...
+    [], [ system.pos.right.x system.pos.right.y system.pos.right.x+chest_w system.pos.right.y+chest_h] );
+
+% add keys to chests
+Screen('DrawTexture', system.w, system.tex.key,...
+    [], [ system.pos.right.x+20 system.pos.right.y+20 system.pos.right.x+chest_w system.pos.right.y+chest_h] );
+
+Screen('DrawTexture', system.w, system.tex.key,...
+    [], [ system.pos.left.x+20 system.pos.left.y+20 system.pos.left.x+chest_w system.pos.left.y+chest_h] );
+
+DrawFormattedText(system.w, 'But be quick. You only have 2 seconds to choose a chest (push to continue)', ...
+    'center', 'center', [255, 255, 255]); % Draw the second instruction
+Screen('Flip', system.w); % Display the content on the screen
+k =0;
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+end
+
+
 
 % Instruction 3
 Screen('Flip', system.w); % Clear the screen
 Screen('DrawTexture', system.w, system.tex.ocean_bottom); % Show the background again
-DrawFormattedText(system.w, 'The odds that a chest has treasure will be different. Your task is to learn which chest is most likely to have treasure', ...
+DrawFormattedText(system.w, 'The odds that a chest has treasure will be different. Your task is to learn which chest is most likely to have treasure  (push to continue)', ...
     'center', 'center', [255, 255, 255]); % Draw the third instruction
 Screen('Flip', system.w); % Display the content on the screen
-waitForKeys(acceptkeys, Inf);
+
+k =0;
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+end
 
 % Instruction 4
 Screen('Flip', system.w); % Clear the screen
 Screen('DrawTexture', system.w, system.tex.ocean_bottom); % Show the background again
-DrawFormattedText(system.w, 'Push any key to start', ...
+DrawFormattedText(system.w, 'The green bar at the bottom of the task lets you know how much longer in the task you have (push to continue)', ...
+    'center', 'center', [255, 255, 255]); % Draw the third instruction
+Screen('Flip', system.w); % Display the content on the screen
+
+k=0;
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+end
+
+% Instruction 5
+Screen('Flip', system.w); % Clear the screen
+Screen('DrawTexture', system.w, system.tex.ocean_bottom); % Show the background again
+DrawFormattedText(system.w, 'Push any key twice to start', ...
     'center', 'center', [255, 255, 255]); % Draw the final instruction
 Screen('Flip', system.w); % Display the content on the screen
-waitForKeys(acceptkeys, Inf);
+k=0;
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+end
 
 % Ready to run the task
 onset = Screen('Flip', system.w, 0); % Final screen flip, getting the onset time
-acceptkeys = KbName({'space','LeftArrow','UpArrow','RightArrow','Return','1'}); % Define accepted keys
 
 % Wait for a key press to start the task
-[output.k, output.rt] = waitForKeys(acceptkeys, Inf);
+k=0;
+while k == 0
+    [k,rt]= waitForKeyPress(k,'rtbox');
+end
 
 end

private/load_events.m

@@ -3,7 +3,7 @@
 % fprintf('# loading event timing\n');
 
 nblocks = 3;
-ntrials = 15;
+ntrials = 50;
 i = 0; 
 
 for block = 1:nblocks
@@ -20,11 +20,11 @@
 
         % Set chance values depending on the block
         if block == 1
-            timing(i).chance = [0,1,1,1]; % left, up, up,right
+            timing(i).chance = [.2,.5,.5,1]; % left, up, up,right
         elseif block == 2
-            timing(i).chance = [0.5,0.5,0.5,1]; % left, up, up,right since rtbox has 2 options for up
+            timing(i).chance = [0.5,0.2,0.2,1]; % left, up, up,right since rtbox has 2 options for up
         elseif block == 3
-            timing(i).chance = [0.5,1,1,0.5]; % left, up,up, right
+            timing(i).chance = [0.75,0.75,0.75,0.75]; % left, up,up, right
         end
 
         timing(i).max_rt = timing(i).dur;
@@ -40,15 +40,15 @@
 
         i=i+1;
         timing(i).event_name = 'isi';
-        timing(i).dur = .2;
+        timing(i).dur = .52;
         timing(i).cross_color = [0,0,255]; % blue
         timing(i).func = @moveCharacter;
         timing(i).onset = timing(i-1).onset + timing(i-1).dur; % as soon as choice ends
         timing(i).i = i;
 
         i=i+1;
         timing(i).event_name = 'feedback';
-        timing(i).dur = .1;
+        timing(i).dur = .52;
         timing(i).func = @feedback;
         timing(i).onset = timing(i-1).onset + timing(i-1).dur;
         timing(i).i = i;