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Practice_ST.m
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% Scarcity Games
% Wenwen Xie, edited by Inge Huijsmans
%
% Last editing: 2014-12-17
% Start editing: 2014-11-12
%
% In this experiment participants play three games: the Dot Comparison, Dot
% Counting and Shape Matching game. They play these three games in
% randomized order. They will play these three games in sequence twice,
% once in the 'Abundance' condition, once in the 'Scarcity' condition.
% The order of these conditions are counterbalanced between parcitipant.
% After participants have played a fixed number of trials
% in each game, the task switches to a different task. This different task
% can be implemented by a function.
%
% Feedback on each trail of each of the tasks is fixed for all participants.
%% Set seed to date+time %%
rng shuffle
%% Scanerstuff
SCANNER = {'Skyra','Dummy','Debugging','Keyboard','buttonbox'}; SCANNER = SCANNER{4};
% setup bitsi stuff for button responses
setup_bits;
%% Set some directories %%
%WD for Dot Comparison
stimuli_dir_DComp = [cd '\Scarcity Stimuli\Dot Comparison\'];
%WD for Shape Matching
stimuli_dir_SMatch = [cd '\Scarcity Stimuli\Shape Matching\'];
%WD for General images
stimuli_dir_general = [cd '\Scarcity Stimuli\General\'];
%WD for instructions
instruct_dir = [cd '\Instructions\Practice_ST\'];
%Results
results_dir = [cd '\Results\'];
%% Screen stuff
%Skips the 'Welcome to psychtoolbox message'
olddebuglevel=Screen('Preference', 'VisualDebuglevel', 1);
%At the beginning of each script matlab does synctests. Level 1 and 2
%prevent those tests. What does 0 do?
Screen('Preference', 'SkipSyncTests', 0);
% Get the screen numbers
screens = Screen('Screens');
% Draw to the external screen if avaliable
screenNumber = max(screens);
% Define black and white
white = 255;
black = 0;
yellow=[255 255 0];
green = [0 255 0];
red = [255 0 0];
% Open an on screen window
[window, windowRect] = Screen('OpenWindow',screenNumber,black);
HideCursor;
% Get the size of the on screen window
[screenXpixels, screenYpixels] = Screen('WindowSize', window);
%Other applications compete with windows for resources. These lines make
%sure matlab wins.
prioritylevel=MaxPriority(window);
Priority(prioritylevel);
% Get the centre coordinate of the window
[xCenter, yCenter] = RectCenter(windowRect);
[wth, hth] = Screen('WindowSize', window);
%Textstuff
penWidthPixels = 4;
Screen('TextFont', window, 'Ariel');
Screen('TextSize', window, 32)
KbName('UnifyKeyNames');
%% Counterbalancing BS
%Set ppnr
ppnr_str = openended(window, 'Participant Nr:', white);
ppnr = str2double(ppnr_str);
%Inform that computer is working
DrawFormattedText(window, 'Generating experiment configurations...\n\nOne moment please.', 'center','center', white);
Screen('Flip',window)
%Set condition
condition_txt = {'Scarcity'};
condition = 1;
%Counterbalance order of games
game_TXT = {'DComp', 'DCount', 'SMatch'};
games = [1,2,3];
c_games = perms(games);
game_order = c_games(mod(ppnr,6)+1,:);
%% General statements
nrtrials = 3;
txt_totaltoken ='Your total tokens: ';
[w_txt_totaltoken, ~] = RectSize(Screen('TextBounds',window,txt_totaltoken));
breaktext = 'The exeperiment is pauzed by the experimenter\n\nPlease wait for the experiment to restart';
%Stimulus durations
pt_dotclouds = 1;
pt_progressbar = 2;
timeout = 6;
instructtime = 5;
readinstructtime = 20;
practice_wintrial = {1,5,7,8};
% Dot Comparison Game
dotbaseRect = [0 0 200 300];
baseRect = [0 0 210 310];
squareXpos = [screenXpixels*0.35, screenXpixels*0.65];
numSquares = 2;
all_rects = nan(2,4);
question_DComp = {'Which rectangle contains more dots?'};
%Shape Matching game
question_SMatch = {'Do they match?'};
%% Make dot cloud stimuli for Dot Comparison game
%Preallocate rectangles
clouds_DComp = cell(2,nrtrials*length(condition));
%Make dotclouds
for h = 1: (nrtrials*length(condition))
for i = 1:numSquares
%Make two rectangles on 2 different x positions
Rect = CenterRectOnPointd(dotbaseRect, squareXpos(i), yCenter);
%Make two clouds of 30-40 dots
numberdots=30+round(rand*10);
%Preallocate cloud
cloud = nan(2,numberdots);
%Collect dots in variable cloud
for k = 1:numberdots
dotXpos = randsample(Rect(1):Rect(3),1);
dotYpos = randsample(Rect(2):Rect(4),1);
cloud(:,k) = [dotXpos,dotYpos];
end
clouds_DComp(i,h) = {cloud};
end
end
%% Dot clouds for dot counting game
clouds_DCount = cell(1,nrtrials*length(condition));
%Save number of dots for Dot Count question
question_DCount = cell(1,nrtrials);
for h = 1: (nrtrials*length(condition))
%Make two clouds of 30-40 dots
numberdots=30+round(rand*10);
%Preallocate cloud
cloud = nan(2,numberdots);
for k = 1:numberdots
dotXpos = randsample(windowRect(1):windowRect(3),1);
dotYpos = randsample(windowRect(2):windowRect(4),1);
cloud(:,k) = [dotXpos,dotYpos];
end
clouds_DCount(h) = {cloud};
question_DCount{h} = num2str(numberdots);
end
%% Shape matching images
%Read images
listing = dir(stimuli_dir_SMatch);
filenames = char(listing.name);
%Preallocate images
images_SM = zeros(720, 960, 3, 'uint8');
%Read images
for i = 4:length(filenames)
if strcmp(filenames(i,:), 'Thumbs.db')
continue
end
images_SM(:,:,:,i-3) = imread([stimuli_dir_SMatch filenames(i,:)]);
end
%Set textures
textures_SM = zeros(1,length(filenames)-4);
%Preallocate textures
for i = 1:length(textures_SM)
textures_SM(i) = Screen('MakeTexture', window, images_SM(:,:,:,i));
end
textures_SM = shuffle(textures_SM);
%% Create a structure containing WS & BS counterbalancing
c.condition_txt = condition_txt;
c.condition = condition;
c.c_game = game_order;
c.game_TXT = game_TXT;
c.left = {'Left', 'Less', 'Yes'};
c.right = {'Right', 'More', 'No'};
c.question = {repmat(question_DComp,[1,nrtrials]), question_DCount, repmat(question_SMatch,[1,nrtrials])};
c.tokens = [1, 10];
%% General images
%Read files
listing = dir(stimuli_dir_DComp);
filenames = char(listing.name);
%Preallocate images
progressbars = zeros(220, 150, 3, 'uint8');
%Read images
for i = 4:length(filenames)
progressbars(:,:,:,i-3) = imread([stimuli_dir_DComp filenames(i,:)]);
end
%Make textures
tokenmin1 = Screen('MakeTexture', window, progressbars(:,:,:,1));
token0 = Screen('MakeTexture', window, progressbars(:,:,:,2));
tokenplus1 = Screen('MakeTexture', window, progressbars(:,:,:,3));
tokenplus10 = Screen('MakeTexture', window, progressbars(:,:,:,4));
tokenplus11 = Screen('MakeTexture', window, progressbars(:,:,:,5));
tokenplus2 = Screen('MakeTexture', window, progressbars(:,:,:,6));
tokenplus8 = Screen('MakeTexture', window, progressbars(:,:,:,7));
tokenplus9 = Screen('MakeTexture', window, progressbars(:,:,:,8));
%Read token reminding images
c.reminder = cell(1,2);
c.reminder{1} = imread([stimuli_dir_general 'zerotoken.jpg']);
c.reminder{2} = imread([stimuli_dir_general 'ninetoken.jpg']);
%Got product check
gotit = imread(strtrim([stimuli_dir_general 'gotit.JPG']));
%Not Got product cross
gotnot = imread(strtrim([stimuli_dir_general 'gotnot.JPG']));
%General images: Token allocation
alloc_token = imread([stimuli_dir_general 'tokenalloc.jpg']);
alloc_token = Screen('MakeTexture', window, alloc_token);
s_alloc_token = imread([stimuli_dir_general 's_token.JPG']);
s_alloc_token = Screen('MakeTexture', window, s_alloc_token);
a_alloc_token = imread([stimuli_dir_general 'a_token.jpg']);
a_alloc_token = Screen('MakeTexture', window, a_alloc_token);
c.alluc_token = {s_alloc_token, a_alloc_token};
%Start brain game
start1 = imread([stimuli_dir_general 'start1.jpg']);
start1 = Screen('MakeTexture', window, start1);
%Play round 2
round2 = imread([stimuli_dir_general 'round2.jpg']);
round2 = Screen('MakeTexture', window, round2);
%Stagegame instructions
instr_DCount1 = imread([stimuli_dir_general 'instr_DCount1.JPG']);
instr_DCount1 = Screen('MakeTexture', window, instr_DCount1);
instr_DComp1 = imread([stimuli_dir_general 'instr_DComp1.JPG']);
instr_DComp1 = Screen('MakeTexture', window, instr_DComp1);
instr_SMatch1 = imread([stimuli_dir_general 'instr_SMatch1.JPG']);
instr_SMatch1 = Screen('MakeTexture', window, instr_SMatch1);
instr_DCount2 = imread([stimuli_dir_general 'instr_DCount2.JPG']);
instr_DCount2 = Screen('MakeTexture', window, instr_DCount2);
instr_DComp2 = imread([stimuli_dir_general 'instr_DComp2.JPG']);
instr_DComp2 = Screen('MakeTexture', window, instr_DComp2);
instr_SMatch2 = imread([stimuli_dir_general 'instr_SMatch2.JPG']);
instr_SMatch2 = Screen('MakeTexture', window, instr_SMatch2);
c.instr_stagegame = {[instr_DComp1, instr_DCount1, instr_SMatch1], [instr_DComp2, instr_DCount2, instr_SMatch2]};
%End
end1 = imread([stimuli_dir_general 'end1.JPG']);
end1 = Screen('MakeTexture', window, end1);
%Final instructions
final_instruct1 = imread([stimuli_dir_general 'final_instruct1.JPG']);
final_instruct1 = Screen('MakeTexture', window, final_instruct1);
final_instruct2 = imread([stimuli_dir_general 'final_instruct2.JPG']);
final_instruct2 = Screen('MakeTexture', window, final_instruct2);
%Switch to other task
s_switchtoken = imread([stimuli_dir_general 's_switchtoken.JPG']);
s_switchtoken = Screen('MakeTexture', window, s_switchtoken);
a_switchtoken = imread([stimuli_dir_general 'a_switchtoken.JPG']);
a_switchtoken = Screen('MakeTexture', window, a_switchtoken);
c.switchtoken = {s_switchtoken, a_switchtoken};
%Return stagegame
return_stagegame = imread([stimuli_dir_general 'return_stagegame.JPG']);
return_stagegame = Screen('MakeTexture', window, return_stagegame);
%Intructions shoptask
inst_shoptask = imread([stimuli_dir_general 'inst_shoptask.JPG']);
inst_shoptask = Screen('MakeTexture', window, inst_shoptask);
%Intructions shoptask
a_end_G1 = imread([stimuli_dir_general 'a_end_G1.JPG']);
a_end_G1 = Screen('MakeTexture', window, a_end_G1);
a_end_G2 = imread([stimuli_dir_general 'a_end_G2.JPG']);
a_end_G2 = Screen('MakeTexture', window, a_end_G2);
a_end_G3 = imread([stimuli_dir_general 'a_end_G3.JPG']);
a_end_G3 = Screen('MakeTexture', window, a_end_G3);
s_end_G1 = imread([stimuli_dir_general 's_end_G1.JPG']);
s_end_G1 = Screen('MakeTexture', window, s_end_G1);
s_end_G2 = imread([stimuli_dir_general 's_end_G2.JPG']);
s_end_G2 = Screen('MakeTexture', window, s_end_G2);
s_end_G3 = imread([stimuli_dir_general 's_end_G3.JPG']);
s_end_G3 = Screen('MakeTexture', window, s_end_G3);
c.end_G1_G3 = {[s_end_G1, s_end_G2, s_end_G3], [a_end_G1, a_end_G2, a_end_G3]};
%Practice images: failing :)
U_end = imread([stimuli_dir_general 'U_end.JPG']);
U_end = Screen('MakeTexture', window, U_end);
U_gameover = imread([stimuli_dir_general 'U_game over.JPG']);
U_gameover = Screen('MakeTexture', window, U_gameover);
%% Prepare saving data %%
%Prepare data logging
time = datestr(now, 'DD-HH-MM');
filename = [results_dir, sprintf('Scarcity_Practice_ppnr_%i_time_%s_data.txt', ppnr, time)];
fid = fopen(filename,'a+t');
fprintf(fid, '%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n', 'ppnr','totaltrial', 'blocktrial','block','condition_AS', 'game', 'screenID', 'mainstart', 'flip_onset', 'VBLTimestamp', 'lastFlipTimestamp', 'FlipTimestamp', 'MissedFlip','presenttime', 'response', 'RT', 'tokens');
%Save first timing
mainstart=tic;
t_filename = [results_dir, sprintf('Scarcity_Practice_ppnr_%i_time_%s_timing.txt', ppnr, time)];
ft_id = fopen(t_filename,'a+t');
fprintf(ft_id, '%s\n', 'mainstart');
fprintf(ft_id, '%s\n', mainstart);
%% Variables from the inserted experiment %%
%Load all vars
vars = ShopTaskPrep_Practice;
vars.reminder = c.reminder;
vars.gotit = gotit;
vars.gotnot = gotnot;
%Prep saving
filename = [results_dir, sprintf('CD_Practice_ppnr_%i_time_%s_data.txt', ppnr, time)];
fid_newtask = fopen(filename,'a+t');
fprintf(fid_newtask, '%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n', 'ppnr', 'condition_S/A', 'totaltrial','trial','screenId', 'presenttime', 'lastFlipTimestamp', 'flip_stamp','startbid', 'bid_round', 'bid', 'computerprice', 'gotit','RT', 'condition', 'brand', 'product', 'filename', 'retailprice');
%Prep saving
filename = [results_dir, sprintf('CD_Practice_ppnr_%i_time_%s_slider.txt', ppnr, time)];
fid_slider = fopen(filename,'a+t');
fprintf(fid_slider, '%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n', 'trial', 'flip_nr', 'handle_x','response', 'fliptimestamp', 'tmp_bid','RT', 'VBLTimestamp', 'BidFlipTimestamp', 'FlipTimestamp', 'MissedFlip', 'ppnr', 'block','condition_txt', 'total_trial');
%% Start game
%Count & trackers
tottrialcounter = 1;
block = 0;
quit = 0;
screenID = 1;
nextblock = 0;
%% Instructions
nextkey = 'rightarrow';
backkey = 'leftarrow';
instructions(window, instruct_dir, 1:8, nextkey, backkey);
for k = 1:length(c.condition)
screenID = 1.3;
instr = 1;
%Set reminder for Shoptask
reminder = c.reminder{c.condition(k)};
while instr
switch screenID
case 1.3
%% Start SBG
Screen('DrawTexture', window, start1, [], [], 0);
presenttime=instructtime;
screenID = 1.4;
case 1.4
%% Allocate tokens
Screen('DrawTexture', window, alloc_token, [], [], 0);
presenttime=instructtime;
screenID = 1.5;
case 1.5
%% Assign tokens
Screen('DrawTexture', window, c.alluc_token{c.condition(k)}, [], [], 0);
presenttime=instructtime;
%Break instructions
instr = 0;
end
[VBLTimestamp, lastFlipTimestamp, FlipTimestamp, MissedFlip] = Screen('Flip', window);
WaitSecs(presenttime);
end
%To instructions about stage game
screenID = 1.1;
tokens = c.tokens(c.condition(k));
for j =1:length(c.c_game)
ending = 0;
if quit == 1
break
end
%Reset count & trackers for each block
run = 1;
nrtrialcounter = 1;
while run
switch screenID
%% Instructions
case 1.1
%% Start with stage game instr pt1
%Per different game
Screen('DrawTexture', window, c.instr_stagegame{1}(c.c_game(j)), [], [], 0);
presenttime=instructtime;
%Reset trackers for each trial
response = 0;
RT = 0;
screenID = 1.15;
case 1.15
%% Start with stage game instr pt2
%Per different game
Screen('DrawTexture', window, c.instr_stagegame{2}(c.c_game(j)), [], [], 0);
presenttime=readinstructtime;
%Reset trackers for each trial
response = 0;
RT = 0;
screenID = 2;
%% Experiment
case 2
%% Fixation cross
Screen('DrawText',window, '+', xCenter, yCenter, white);
%Presenttime fixation cross
presenttime=0.5+rand(1);
%Reset trackers for each trial
response = 0;
RT = 0;
%Nextscreen
screenID = 3;
case 3
%% Present game images
switch c.game_TXT{c.c_game(j)}
case 'DComp'
%Draw two rects with dots
for i = 1:numSquares
Screen('FrameRect', window, white, CenterRectOnPointd(baseRect, squareXpos(i), yCenter), penWidthPixels);
Screen('DrawDots', window, clouds_DComp{i,nrtrialcounter}, 6, white, [],2);
end
case 'DCount'
%Draw one dot cloud
Screen('DrawDots', window, clouds_DCount{nrtrialcounter}, 6, white, [],2);
case 'SMatch'
%Draw Shapes
Screen('DrawTexture', window, textures_SM(nrtrialcounter), [], [], 0);
end
%Present screen
presenttime=pt_dotclouds;
%Next Screen
screenID = 4;
case 4
%% Ask to select an answer option
%Draw Q + answer options
DrawFormattedText(window, c.question{c.c_game(j)}{nrtrialcounter}, 'center', 0.407*hth, white);
%Set color of left/right, & nextscreen
if response == 0
color = {white, white};
presenttime = 0;
elseif response == ButtonA
color = {yellow, white};
screenID = 5;
presenttime = 1;
else
color = {white, yellow};
screenID = 5;
presenttime = 1;
end
Screen('DrawText', window, c.left{c.c_game(j)}, 0.343*wth, 0.685*hth, color{1});
Screen('DrawText', window, c.right{c.c_game(j)}, 0.63*wth, 0.685*hth, color{2});
case 4.1
%% Too slow
DrawFormattedText(window, 'Too slow!', 'center', 'center', red);
%Present screen
presenttime=1;
%Make them redo the trial: Fixation cross
screenID = 2;
case 4.2
%% Wrong button
DrawFormattedText(window, 'Wrong button!', 'center', 'center', red);
%Present screen
presenttime=1;
%Make them redo the trial: Fixation cross
screenID = 2;
case 5
%% Ask to select an answer option
%Draw Q + answer options
DrawFormattedText(window, c.question{c.c_game(j)}{nrtrialcounter}, 'center', 0.407*hth, white);
Screen('DrawText', window, c.left{c.c_game(j)}, 0.343*wth, 0.685*hth, color{1});
Screen('DrawText', window, c.right{c.c_game(j)}, 0.63*wth, 0.685*hth, color{2});
%% Feedback, did they win tokens?
switch tottrialcounter
case practice_wintrial
DrawFormattedText(window, 'You win 1 token!', 'center', 'center', green);
tokens = tokens + 1;
otherwise
DrawFormattedText(window, 'You lose 1 token!', 'center', 'center', red);
tokens = tokens - 1;
end
%Present screen jittered
presenttime=1+2*rand(1);
%Next screen: Progress bar
screenID = 6;
case 6
%% Present progressbar
%Progress
txt_nrtokens = num2str(round(tokens));
switch tokens
case {1 2 8 9 10 11}
color = green;
wintoken = eval(sprintf('tokenplus%d',tokens));
Screen('DrawTexture', window, wintoken, [], [0.44*wth 0.17*hth 0.54*wth 0.45*hth], 0);
case {0 -1}
color = red;
if tokens == 0
Screen('DrawTexture', window, token0, [], [0.44*wth 0.17*hth 0.54*wth 0.45*hth], 0);
else
Screen('DrawTexture', window, tokenmin1, [], [0.44*wth 0.17*hth 0.54*wth 0.45*hth], 0);
end
end
%draw it all
DrawFormattedText(window,txt_totaltoken, 'center', 0.546*hth, white);
DrawFormattedText(window,txt_nrtokens, xCenter +(w_txt_totaltoken/2)+20, 0.546*hth, color);
%Present screen
presenttime = pt_progressbar;
screenID = 2;
%Track trialnumbers
nrtrialcounter = nrtrialcounter + 1;
tottrialcounter = tottrialcounter +1;
case 999
%% Break the experiment in order to continue later
%draw it all
DrawFormattedText(window,breaktext, 'center', 0.46*hth, white);
%Wait for buttonpress
presenttime = inf;
case 888
%% Close it all down Pt 1
Screen('DrawTexture', window, U_end, [], [], 0);
presenttime = instructtime;
ending = 1;
screenID = 889;
case 889
%% Close it all down Pt 2
Screen('DrawTexture', window, U_gameover, [], [], 0);
presenttime = instructtime;
screenID = 890;
case 890
DrawFormattedText(window,'You will be redirected to the intruction page', 'center', 'center', white);
presenttime = instructtime;
screenID = 891;
run = 0;
end
%% Flip it
[VBLTimestamp, lastFlipTimestamp, FlipTimestamp, MissedFlip] = Screen('Flip', window);
flip_onset=toc(mainstart);
%% Wait for response
if presenttime == 0
if response == 0
while (response == 0) && ((GetSecs - lastFlipTimestamp )<= timeout)
%This is buttonbox code?
[response, keyDownTimestamp] = bitsiboxButtons.getResponse(0.001, true);
end
%Calculate RT's
RT=(keyDownTimestamp-lastFlipTimestamp);
%Too slow
if response == 0
screenID = 4.1;
%Answer
elseif response == ButtonA || response == ButtonB
screenID = 4;
%Next Block
elseif response == ButtonE
screenID = 1.1;
run = 0;
break
%Close All
elseif response == ButtonD
run = 0;
quit = 1;
Screen('CloseAll');
%Pauze
elseif response == ButtonF
screenID = 999;
%Wrong button
else
screenID = 4.2;
end
end
elseif presenttime == inf
while presenttime
%Continue experiment when hitting spacebar
[~, keyCode, ~] = KbWait;
if strcmp(KbName(keyCode), 'space')
presenttime = 0;
%Restart trial
screenID = 2;
break
end
end
end
%Hold it on screen
WaitSecs(presenttime);
if screenID == 891
run = 0;
break;
end
%After nrtrials per stagegame, switch to next stagegame
if (j == 1 || j == 2) && nrtrials+1 <= nrtrialcounter
screenID = 1.1;
run = 0;
break
end
%After nrtrials per stagegame, switch to next stagegame
if j == 3 && nrtrials+1 <= nrtrialcounter && ending == 0
screenID = 888;
end
%Save everything all the time
fprintf(fid, '%i\t%i\t%i\t%i\t%s\t%s\t%i\t%i\t%i\t%i\t%i\t%i\t%i\t%i\t%i\t%i\t%i\n', ppnr, tottrialcounter, nrtrialcounter, j, c.condition_txt{c.condition(k)}, c.game_TXT{c.c_game(j)}, screenID, mainstart, flip_onset, VBLTimestamp, lastFlipTimestamp, FlipTimestamp, MissedFlip, presenttime, response, RT, tokens);
%Check if escape was pressed
[keyisdown, when, keyCode] = KbCheck;
if keyCode(KbName('escape'))
disp('abort key pressed on keyboard... stopping experiment');
Screen('CloseAll');
run = 0;
quit = 1;
elseif keyCode(KbName('a'))
screenID = 999;
elseif keyCode(KbName('b'))
run = 0;
break
end
end
end
end
%Instructions Shoptask
instructions(window, instruct_dir, 9:16, nextkey, backkey);
%Practice Shoptask
ShopTask_Practice(window, vars, 1, 1, ppnr, mainstart, 1, fid_newtask, fid_slider, SCANNER);
%Instructions real experiment
instructions(window, instruct_dir, 17:18, nextkey, backkey);
Screen('CloseAll');