Build IGT

[Nega100]

Hi, Josh
I trying to build a IGT paradigm using JsPsych. Using html-keyboard-response, I successfully make the deck card presented. However the logic math behind the card reward and punishment are still confusing. Anyone here could help me with just a little clue what I am supposed to do?. Thanks a lot and very appreciate for the help. I would share the code when is finished.

[jodeleeuw]

Hi @Nega100 ,

This is a pretty broad question. Can you narrow it down a bit? What aspect of the task are you stuck with? If you can ask separate focused questions it will be easier to help.

[Nega100]

Hi Josh,
Really sorry for the delay. For a moment I read and gather more information from this forum discussion about building this paradigm. However I'm stuck and dont go anywhere. I'm really apreciated for your and community help.
`var totalmoney = 2000,
slotA = 0,
slotB = 0,
slotC = 0,
slotD = 0,
totalchoose = 0,
penalty = 0,
scoregain = 0,
slotA_WIN = 100,
slotB_WIN = 100,
slotC_WIN = 50,
slotD_WIN = 50,
maxmoney = 10000,
maxplay = 100;

var slotApenalty = [0, 0, -150, 0, -300, 0, -200, 0, -250, -350, 0, -350, 0, -250, -200, 0, -300, -150, 0, 0, 0, -300, 0, -350, 0, -200, -250, -150, 0, 0, -350, -200, -250, 0, 0, 0, -150, -300, 0, 0];
var slotBpenalty = [0, 0, 0, 0, 0, 0, 0, 0, -1250, 0, 0, 0, 0, -1250, 0, 0, 0, 0, 0, 0, -1250, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1250, 0, 0, 0, 0, 0, 0, 0, 0];
var slotCpenalty = [0, 0, -50, 0, -50, 0, -50, 0, -50, -50, 0, -25, -75, 0, 0, 0, -25, -75, 0, -50, 0, 0, 0, -50, -25, -50, 0, 0, -75, -50, 0, 0, 0, -25, -25, 0, -75, 0, -50, -75];
var slotDpenalty = [0, 0, 0, 0, 0, 0, 0, 0, 0, -250, 0, 0, 0, 0, 0, 0, 0, 0, 0, -250, 0, 0, 0, 0, 0, 0, 0, 0, -250, 0, 0, 0, 0, 0, -250, 0, 0, 0, 0, 0];
var selectedCards = [];

var trial_1 = {
type: 'html-button-response',
stimulus: " ",
choices: ['',
'',
'',
''],
maintain_aspect_ratio: true,
post_trial_gap: 500,
prompt: " ",
on_finish : function(data){
var responses = JSON.parse(data.responses);
case "decka":
if (slotA === slotApenalty.length){
slotA = 0;
}
penalty = slotApenalty[slotA];
scoregain = slotA_WIN + penalty;
deckAclicks++;
selectedCards.push("A");
break;
}
}`

[gorkang]

@Nega100 , we implemented a version of the IGT (see attachment: iowa_gambling_task.zip)

It is in Spanish but should be easy enough to adapt and improve.

Hopefully it can be helpful to you.

[Nega100]

Hi, @gorkang you a life saver!!. Thankss for your generosity to sharing your code. It really help me a lot and maybe other people who want to use this paradigm with jspsych for their research. Thanks again and this great community!.