var distractors = ["G", "H", "I", "O", "M", "D", "A","L", "P", "Y", "V", "U", "Q", "C", "Z", "J", "F", "R"];
var targets = ["S", "T"];
var Targ1=[0,0,0,0,0,0];
var Targ2=[0,0,0,0,0,0];
var Conditions = [0,0,0,0,0,0,0]; // 0=Immediate > 5 between> 6=No2nd. 
var list=[];
var trialcount= 1;
var con, LocT1, LocT2, TargsFound;

instruction("Welcome to this study. This experiment will test your 'attentional blink', in which your perception 'blinks' after processing a stimuli, thereby missing other important stimuli.").style("font-size","80%");
instruction("You will be shown very rapid sequences of letters. Your only goal is to find a T or an S in the sequence. After each sequence, you report whether the targets were present by typing T, S, TS or nothing (if neither was present). It's capital sensitive!").style("font-size","80%");
instruction("By participating, you claim to understand these instructions and know you can quit at any time to no consequence.").style("font-size","80%");

select("What is your gender?", ["male","female", "other"],"gender");
select("What is your age?",range(10,100),"age");

var b = addblock("right","bottom",10,10)
    .text("trial #{trialcount}/74")
    .style("color","grey")
    .style("font-size","80%");

while (Conditions[0]<10 || Conditions[1]<10 || Conditions[2]<10 || Conditions[3]<10 || Conditions[4]<10|| Conditions[5]<10|| Conditions[6]<14){
    selectCon();
    fillList();
    showList();
    TargsFound=input("Which targets did you see? Type S and/or T if they were present (capital sensitive!) Remember, there could have been no targets!", "TargsFound");
    if (con<6 && contains(TargsFound,targets[0])){
        Targ1[con]++;
    }
    if (con<6 && contains(TargsFound,targets[1])){
        Targ2[con]++;
    }
    trialcount++;
    b.text("trial #{trialcount}/74");
}

log(Targ1[0],"Targ1_0");
log(Targ1[1],"Targ1_1");
log(Targ1[2],"Targ1_2");
log(Targ1[3],"Targ1_3");
log(Targ1[4],"Targ1_4");
log(Targ1[5],"Targ1_5");
log(Targ2[0],"Targ2_0");
log(Targ2[1],"Targ2_1");
log(Targ2[2],"Targ2_2");
log(Targ2[3],"Targ2_3");
log(Targ2[4],"Targ2_4");
log(Targ2[5],"Targ2_5");

instruction("That concludes the experiment. Thank you for participating!");

function selectCon(){
    while (1){
        con= randint(0,6);
        if (con===6 && Conditions[con]<14){
            Conditions[con]++;
            break;
        }
        if (Conditions[con]<10){
            Conditions[con]++;
            break;
        }
    }
}

function fillList(){
    shuffle(distractors);
    shuffle(targets);
    for (var i=0; i<14; i++){
        list[i]=distractors[i];
    }
    LocT1 = randint(0,(13-con));
    list[LocT1]=targets[0];
    if (con<6){
        LocT2=LocT1+con+1;
        list[LocT2]=targets[1];
    }
}

function showList(){
    text("+");
    await(1000);
    clear();
    await(200);
    for (var i=0; i<14; i++){
        text(list[i]);
        await(100);
        clear();
    }
}

Data inspection is forthcoming!

In the mean time, authors may download their own data and make it available as an Excel file. Check out the 'Stimuli and Files' tab.