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number_judgement.html
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number_judgement.html
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<!DOCTYPE html>
<html>
<head>
<title>Number Judgement Task</title>
<script src="jspsych-master/jspsych.js"></script>
<script src="jspsych-master/plugins/jspsych-html-keyboard-response.js"></script>
<script src="jspsych-master/plugins/jspsych-image-keyboard-response.js"></script>
<link rel="stylesheet" href="jspsych-master/css/jspsych.css"></link>
<style>
div.center {
position: absolute;
width:100vw;
left: 0;
}
.oddball-stim {
display: inline-block;
padding: 10px;
box-shadow: 0 4px 2px 0 rgba(0,0,0,0.5);
border: 1px solid #ccc;
margin: 0px 10px;
background-color: white;
}
</style>
</head>
<body></body>
<script>
//CONSTANTS
var stim_width_height = 200;
var min_dot_density = 100;
var max_dot_density = 2000;
var min_line_density = 30;
var max_line_density = 550;
var rel_be_distance = 0.33;
var rel_wi_distance = 0.33;
var irr_distance = 0.33;
//PARTICIPANT
// determines which dimension is relevant throughout the experiment
var relevant_dimension = jsPsych.randomization.sampleWithoutReplacement(['dots', 'lines'], 1) [0];
//RANDOMIZERS
// determines which sunburst will be the odd-ball
function randomize_correct() {
return jsPsych.randomization.sampleWithoutReplacement(['1', '2', '3', '4'], 1)[0];
}
// randomly samples a particular sunburst from the scene
function randomize_sunburst() {
return jsPsych.randomization.sampleWithoutReplacement([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16], 1)[0];
}
// randomly chooses which pair on the relevant-between dimension to present in the odd_ball task
function randomize_be_pair() {
return jsPsych.randomization.sampleWithoutReplacement([1, 2, 3, 4], 1)[0];
}
// randomly chooses which pair on the relevant-between dimension to present in the odd_ball task
function randomize_wi_pair() {
return jsPsych.randomization.sampleWithoutReplacement([5, 6, 7, 8, 9, 10, 11, 12], 1)[0];
}
// randomly chooses which pair on the relevant-between dimension to present in the odd_ball task
function randomize_irr_pair() {
return jsPsych.randomization.sampleWithoutReplacement([13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24], 1)[0];
}
// randomly generates true or false
function boolean() {
var boolean = jsPsych.randomization.sampleWithoutReplacement([true, false], 1)[0];
return boolean;
}
//HELPERS
function round(value, precision) {
if (precision < -4 && precision > 15)
{throw new ArgumentOutOfRangeException("precision", "Must be and integer between -4 and 15")}
if (precision >= 0) {return Math.round(value, precision)}
else {
precision = Math.pow(10, Math.abs(precision));
value = value + (5 * precision / 10);
return Math.round(value - (value % precision), 0);
}
}
function rel_dim_val(x, be, wi){
var x_dim;
if(x == 0){
x_dim = 0.5 - (be/2) - wi;
} else if(x == 1) {
x_dim = 0.5 - (be/2);
} else if(x == 2) {
x_dim = 0.5 + (be/2);
} else {
x_dim = 0.5 + (be/2) + wi;
}
return x_dim;
}
function irr_dim_val(y, irr) {
var y_dim;
if(y == 0){
y_dim = 0.5 - (irr/2) - irr;
} else if(y == 1) {
y_dim = 0.5 - (irr/2);
} else if(y == 2) {
y_dim = 0.5 + (irr/2);
} else {
y_dim = 0.5 + (irr/2) + irr;
}
return y_dim;
}
function calculate_x_values(sunburst) {
var dimension = relevant_dimension;
var xCoordinate = x_coordinate(sunburst);
var yCoordinate = y_coordinate(sunburst);
if (dimension == 'dots') {
var x_dim = rel_dim_val(xCoordinate, rel_be_distance, rel_wi_distance);
var y_dim = irr_dim_val(yCoordinate, irr_distance);
return x_dim;
} else {
var x_dim = irr_dim_val(yCoordinate, irr_distance);
var y_dim = rel_dim_val(xCoordinate, rel_be_distance, rel_wi_distance);
return x_dim;
}
}
function calculate_y_values(sunburst) {
var dimension = relevant_dimension;
var xCoordinate = x_coordinate(sunburst);
var yCoordinate = y_coordinate(sunburst);
if (dimension == 'dots') {
var x_dim = rel_dim_val(xCoordinate, rel_be_distance, rel_wi_distance);
var y_dim = irr_dim_val(yCoordinate, irr_distance);
return y_dim;
} else {
var x_dim = irr_dim_val(yCoordinate, irr_distance);
var y_dim = rel_dim_val(xCoordinate, rel_be_distance, rel_wi_distance);
return y_dim;
}
}
// dispays individual sunburst
function generate_stim(dot_dim, line_dim) {
// params
var w = stim_width_height;
var r = stim_width_height/4;
var x = w / 2;
var y = w / 2;
var circle_r = stim_width_height / 200;
var minLineLength = 10;
dot_density = min_dot_density + (max_dot_density-min_dot_density)*dot_dim;
line_density = min_line_density + (max_line_density-min_line_density)*line_dim;
// svg string
var str = '<svg xmlns="http://www.w3.org/2000/svg" width="' + w + '" height="' + w + '">'
//Code for drawing the lines that come out of the circle.
//Each line starts in the center of the circle and is drawn outward
for (var i = 0; i < line_density; i++) {
var angle = Math.random() * Math.PI / 2;
var lineLength = r + minLineLength + (r - minLineLength) * Math.random();
var x2 = Math.cos(angle) * lineLength;
var y2 = Math.sin(angle) * lineLength;
if (Math.random() < 0.5) {
x2 = -x2;
}
if (Math.random() < 0.5) {
y2 = -y2;
}
x2 = x + x2;
y2 = y + y2;
str += '<line x1="' + x + '" y1="' + y + '" x2="' + x2 + '" y2="' + y2 + '" style="stroke:rgb(65,105,225); stroke-width:1;" />';
}
// draw circle
str += '<circle cx="' + x + '" cy="' + y + '" r="' + r + '" style="stroke:rgb(65,105,225); stroke-width:2; fill: rgb(255,255,255);"/>'
//Code for creating and dispersing the dots
for (var j = 0; j < dot_density; j++) {
do {
var x2 = Math.random() * 2 * r + x - r;
var y2 = Math.random() * 2 * r + y - r;
} while ((Math.pow(x - x2, 2) + Math.pow(y - y2, 2)) > Math.pow(r - circle_r - 2, 2));
str += '<circle cx="' + x2 + '" cy="' + y2 + '" r="' + circle_r + '" style="fill:rgb(65,105,225);" />';
}
str += "</svg>";
return str;
}
// determines if the last answer was correct
function last_correct() {
return jsPsych.data.get().last(1).values()[0].correct;
}
function category_feedback() {
var correct_response = jsPsych.data.get().last(1).values()[0].correct_response;
if (correct_response == 'T') {var feedback = 'Tig'}
else {var feedback = 'Fep'}
return feedback;
}
function too_slow() {
return jsPsych.randomization.sampleWithoutReplacement(['Snooze ya lose!', 'Oops!', 'Cmon Grandma!'], 1)[0]
}
function nj_helper(sb, ml) {
if (boolean()) {var dl = "dots"}
else {var dl = "lines"}
if (relevant_dimension == dl) {var distance = rel_wi_distance}
if (relevant_dimension != dl) {var distance = irr_distance}
if (dl == "dots") {
if (ml == "more") {
if (sb >= 5) {
var num_dim = calculate_x_values(sb-4);
var number = min_dot_density + (max_dot_density-min_dot_density)*num_dim;
number = round(number, -2);
} else {
var num_dim = calculate_x_values(sb)-distance;
var number = min_dot_density + (max_dot_density-min_dot_density)*num_dim;
number = round(number, -2);
if(number<0) {number=50}
}
} else/* ml == "less" */{
if (sb <= 12) {
var num_dim = calculate_x_values(sb+4);
var number = min_dot_density + (max_dot_density-min_dot_density)*num_dim;
number = round(number, -2);
} else {
var num_dim = calculate_x_values(sb)+distance;
var number = min_dot_density + (max_dot_density-min_dot_density)*num_dim;
number = round(number, -2);
}
}
} else/* dl == "lines" */{
if (ml == "more") {
if (sb%4==1) {
var num_dim = calculate_y_values(sb)-distance;
var number = min_line_density + (max_line_density-min_line_density)*num_dim;
number = round(number, -1);
if(number<0) {number=10}
} else {
var num_dim = calculate_y_values(sb-1);
var number = min_line_density + (max_line_density-min_line_density)*num_dim;
number = round(number, -1);
}
} else/* ml == "less" */{
if (sb%4==0) {
var num_dim = calculate_y_values(sb)+distance;
var number = min_line_density + (max_line_density-min_line_density)*num_dim;
number = round(number, -1);
} else {
var num_dim = calculate_y_values(sb+1)
var number = min_line_density + (max_line_density-min_line_density)*num_dim;
number = round(number, -1);
}
}
}
var question = "<p>" + number + " " + dl + "?</p>";
return '<div class="center">' + question + '</p></div>';
}
// create timeline
var timeline = [];
//INSTRUCTIONS
var welcome = {
type: "html-keyboard-response",
stimulus: "Welcome to the experiment. Press any key to begin."
};
timeline.push(welcome);
var instructions = {
type: "html-keyboard-response",
choices: 'L',
stimulus: "In this second task, you will be asked to estimate the relative amount of dots or lines on a particular sunburst. </p> \
<p>You will be presented with one sunburst at a time and asked to respond to statements like, <em>400 lines?</em></p> \
<p>To indicate that there are <strong>more</strong> than the stated amount, <em>press <strong>M</strong></em> on the keyboard. </p> \
<p>To indicate that there are <strong>less</strong> than the stated amount, <em>press <strong>L</strong></em> on the keyboard. </p> \
<p><div class='center';'><img src='jspsych-master/img/example_nj.png'></img></p> \
<p class='small'> ex. <strong>Press L</strong> to continue</p></div></p>",
post_trial_gap: 250,
};
{timeline.push(instructions);}
var instructions_pt2 = {
type: "html-keyboard-response",
stimulus: "<p>After you respond, you will receive feedback as to whether your response was correct. </p> \
<p>It may be difficult to estimate the amount of dots or lines, but just try your best to answer correctly. </p> \
<p>Just like before, you will have up to 4 seconds to enter your response. </p> \
<p>After that, it will move on to the next trial, so please do your best to respond within that time! </p> \
<p>Press any key to continue!</p>",
post_trial_gap: 250,
};
{timeline.push(instructions_pt2);}
// test trials
var pause = {
type: 'html-keyboard-response',
stimulus: function () {
if (jsPsych.data.get().last(2).values()[0].key_press != null) {return ''}
else {return "<p>Still with us? Press any key to continue. </p>"}
},
choices: function () {
if (jsPsych.data.get().last(2).values()[0].key_press != null) {return jsPsych.NO_KEYS}
},
trial_duration: function () {
if (jsPsych.data.get().last(2).values()[0].key_press != null) {return 500}
},
data: {test_part: 'pause'}
}
// number judgement task real trial
var test = {
type: "html-keyboard-response",
stimulus: '',
trial_duration: 4000,
choices: ['M', 'L',],
on_start: function(trial) {
var sb = randomize_sunburst();
var x_dim = calculate_x_values(sb);
var y_dim = calculate_y_values(sb);
var sunburst = '<div class="oddball-stim">' + generate_stim(x_dim, y_dim) + '</div>';
var dots = min_dot_density + (max_dot_density-min_dot_density)*x_dim;
var lines = min_line_density + (max_line_density-min_line_density)*y_dim;
var bool = boolean();
if (bool) {var ml = "more"}
else {"less"}
var question = nj_helper(sb, ml);
if (ml == "more") {var correct_response = 'M'}
else {correct_response = 'L'}
var stimulus = sunburst + question;
trial.data = {
dot_density: dots,
line_density: lines,
test_part: 'test',
correct_response: correct_response,
stimulus: sunburst,
}
trial.stimulus = stimulus;
},
on_finish: function(data) {
data.correct = data.key_press == jsPsych.pluginAPI.convertKeyCharacterToKeyCode(data.correct_response);
},
}
// feedback for number judgement trials
var feedback = {
type: "html-keyboard-response",
stimulus: function () {
var lastCorrect = last_correct();
var html = "<style>"
if (lastCorrect == true) {
html += ".oddball-stim { border: 11px solid limegreen; padding: 0;} ";
html += "</style>"
html += jsPsych.data.get().last(1).values()[0].stimulus +
"<p style='position:absolute; width: 100%; left: 0;'>Correct!</p>"
return html;
} else if (jsPsych.data.get().last(1).values()[0].key_press == null) {
html += ".oddball-stim { border: 11px solid red; padding: 0;} ";
html += "</style>"
html += jsPsych.data.get().last(1).values()[0].stimulus +
"<p style='position:absolute; width: 100%; left: 0;'>" + too_slow();
return html;
}
else {
html += ".oddball-stim { border: 11px solid red; padding: 0;} ";
html += "</style>"
html += jsPsych.data.get().last(1).values()[0].stimulus +
"<p style='position:absolute; width: 100%; left: 0;'>Incorrect!</p>"
return html;
}
},
choices: function () {
if (jsPsych.data.get().last(1).values()[0].key_press != null) {return jsPsych.NO_KEYS}
},
trial_duration: function () {
if (jsPsych.data.get().last(1).values()[0].key_press != null) {return 500}
else {return 1000}
},
}
var test_procedure = {
timeline: [pause, test, feedback],
repetitions: 20,
randomize_order: true
}
timeline.push(test_procedure);
// define debrief
var debrief_block = {
type: "html-keyboard-response",
stimulus: function() {
var trials = jsPsych.data.get().filter({test_part: 'test'});
var correct_trials = trials.filter({correct: true});
var accuracy = Math.round(correct_trials.count() / trials.count() * 100);
var rt = Math.round(correct_trials.select('rt').mean());
return "<p>You responded correctly on "+accuracy+"% of the trials.</p>"+
"<p>Your average response time was "+rt+"ms.</p>"+
"<p>Press any key to complete the experiment. Thank you!</p>";
}
};
timeline.push(debrief_block);
// start the experiment
jsPsych.init({
timeline: timeline,
on_finish: function() {
console.log(jsPsych.data.get().ignore('stimulus').json());
}
});
</script>
</html>