mirror of
https://github.com/jspsych/jsPsych.git
synced 2025-05-10 19:20:55 +00:00
299 lines
10 KiB
JavaScript
299 lines
10 KiB
JavaScript
/**
|
|
* jspsych-iat
|
|
* Kristin Diep
|
|
*
|
|
* plugin for displaying a stimulus and getting a keyboard response
|
|
*
|
|
* documentation: docs.jspsych.org
|
|
*
|
|
**/
|
|
|
|
|
|
jsPsych.plugins['iat-html'] = (function() {
|
|
|
|
var plugin = {};
|
|
|
|
plugin.info = {
|
|
name: 'iat-html',
|
|
description: '',
|
|
parameters: {
|
|
stimulus: {
|
|
type: jsPsych.plugins.parameterType.HTML_STRING,
|
|
default: undefined,
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
left_category_key: {
|
|
type: jsPsych.plugins.parameterType.HTML,
|
|
default: 'E',
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
right_category_key: {
|
|
type: jsPsych.plugins.parameterType.STRING,
|
|
default: 'I',
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
left_category_label: {
|
|
type: jsPsych.plugins.parameterType.STRING,
|
|
array: true,
|
|
default: ['left'],
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
right_category_label: {
|
|
type: jsPsych.plugins.parameterType.STRING,
|
|
array: true,
|
|
default: ['right'],
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
key_to_move_forward: {
|
|
type: jsPsych.plugins.parameterType.KEYCODE,
|
|
array: true,
|
|
default: jsPsych.ALL_KEYS,
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
display_feedback: {
|
|
type: jsPsych.plugins.parameterType.BOOL,
|
|
default: false,
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
html_when_wrong: {
|
|
type: jsPsych.plugins.parameterType.HTML_STRING,
|
|
default: '<span style="color: red; font-size: 80px">X</span>',
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
bottom_instructions: {
|
|
type: jsPsych.plugins.parameterType.HTML_STRING,
|
|
default: '<p>If you press the wrong key, a red X will appear. Press any key to continue.</p>',
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
force_correct_key_press: {
|
|
type: jsPsych.plugins.parameterType.BOOL,
|
|
default: false,
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
stim_key_association: {
|
|
type: jsPsych.plugins.parameterType.HTML,
|
|
default: 'undefined',
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
response_ends_trial: {
|
|
type: jsPsych.plugins.parameterType.BOOL,
|
|
default: true,
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
trial_duration: {
|
|
type: jsPsych.plugins.parameterType.INT,
|
|
default: -1,
|
|
no_function: false,
|
|
description: ''
|
|
},
|
|
}
|
|
}
|
|
|
|
|
|
plugin.trial = function(display_element, trial) {
|
|
|
|
// set default values for the parameters
|
|
trial.left_category_key = trial.left_category_key || 'E';
|
|
trial.right_category_key = trial.right_category_key || 'I';
|
|
trial.left_category_label = trial.left_category_label || ['left'];
|
|
trial.right_category_label = trial.right_category_label || ['right'];
|
|
trial.key_to_move_forward = trial.key_to_move_forward || jsPsych.ALL_KEYS;
|
|
trial.display_feedback = typeof trial.display_feedback == 'undefined' ? false : trial.display_feedback;
|
|
trial.html_when_wrong = trial.html_when_wrong || '<span style="color: red; font-size: 80px">X</span>';
|
|
trial.bottom_instructions = trial.bottom_instructions || "<p>If you press the wrong key, a red X will appear. Press any key to continue.</p>";
|
|
trial.force_correct_key_press = trial.force_correct_key_press || false; //If true, key_to_move_forward is no longer needed
|
|
trial.stim_key_association = trial.stim_key_association || 'undefined';
|
|
trial.response_ends_trial = (typeof trial.response_ends_trial == 'undefined') ? true : trial.response_ends_trial;
|
|
trial.trial_duration = trial.trial_duration || -1;
|
|
trial.key_to_move_forward = trial.key_to_move_forward || jsPsych.ALL_KEYS;
|
|
|
|
var html_str = "";
|
|
|
|
html_str += "<div style='position: absolute; height: 20%; width: 100%; margin-left: auto; margin-right: auto; top: 42%; left: 0; right: 0'><p id='jspsych-iat-stim'>" + trial.stimulus + "</p></div>";
|
|
|
|
html_str += "<div id='trial_left_align' style='position: absolute; top: 18%; left: 20%'>";
|
|
|
|
if(trial.left_category_label.length == 1) {
|
|
html_str += "<p>Press " + trial.left_category_key + " for:<br> " +
|
|
trial.left_category_label[0].bold() + "</p></div>";
|
|
} else {
|
|
html_str += "<p>Press " + trial.left_category_key + " for:<br> " +
|
|
trial.left_category_label[0].bold() + "<br>" + "or<br>" +
|
|
trial.left_category_label[1].bold() + "</p></div>";
|
|
}
|
|
|
|
html_str += "<div id='trial_right_align' style='position: absolute; top: 18%; right: 20%'>";
|
|
|
|
if(trial.right_category_label.length == 1) {
|
|
html_str += "<p>Press " + trial.right_category_key + " for:<br> " +
|
|
trial.right_category_label[0].bold() + '</p></div>';
|
|
} else {
|
|
html_str += "<p>Press " + trial.right_category_key + " for:<br> " +
|
|
trial.right_category_label[0].bold() + "<br>" + "or<br>" +
|
|
trial.right_category_label[1].bold() + "</p></div>";
|
|
}
|
|
|
|
html_str += "<div id='wrongImgID' style='position:relative; top: 300px; margin-left: auto; margin-right: auto; left: 0; right: 0'>";
|
|
|
|
if(trial.display_feedback === true) {
|
|
html_str += "<div id='wrongImgContainer' style='visibility: hidden; position: absolute; top: -75px; margin-left: auto; margin-right: auto; left: 0; right: 0'><p>"+trial.html_when_wrong+"</p></div>";
|
|
html_str += "<div>"+trial.bottom_instructions+"</div>";
|
|
} else {
|
|
html_str += "<div>"+trial.bottom_instructions+"</div>";
|
|
}
|
|
|
|
html_str += "</div>";
|
|
|
|
display_element.innerHTML = html_str;
|
|
|
|
|
|
// store response
|
|
var response = {
|
|
rt: -1,
|
|
key: -1,
|
|
correct: false
|
|
};
|
|
|
|
// function to end trial when it is time
|
|
var end_trial = function() {
|
|
|
|
// kill any remaining setTimeout handlers
|
|
jsPsych.pluginAPI.clearAllTimeouts();
|
|
|
|
// kill keyboard listeners
|
|
if (typeof keyboardListener !== 'undefined') {
|
|
jsPsych.pluginAPI.cancelKeyboardResponse(keyboardListener);
|
|
}
|
|
|
|
// gather the data to store for the trial
|
|
var trial_data = {
|
|
"rt": response.rt,
|
|
"stimulus": trial.stimulus,
|
|
"key_press": response.key,
|
|
"correct": response.correct
|
|
};
|
|
|
|
// clears the display
|
|
display_element.innerHTML = '';
|
|
|
|
// move on to the next trial
|
|
jsPsych.finishTrial(trial_data);
|
|
};
|
|
|
|
var leftKeyCode = jsPsych.pluginAPI.convertKeyCharacterToKeyCode(trial.left_category_key);
|
|
var rightKeyCode = jsPsych.pluginAPI.convertKeyCharacterToKeyCode(trial.right_category_key);
|
|
|
|
// function to handle responses by the subject
|
|
var after_response = function(info) {
|
|
var wImg = document.getElementById("wrongImgContainer");
|
|
// after a valid response, the stimulus will have the CSS class 'responded'
|
|
// which can be used to provide visual feedback that a response was recorded
|
|
display_element.querySelector('#jspsych-iat-stim').className += ' responded';
|
|
|
|
// only record the first response
|
|
if (response.key == -1 ) {
|
|
response = info;
|
|
}
|
|
|
|
if(trial.stim_key_association == "right") {
|
|
if(response.rt > -1 && response.key == rightKeyCode) {
|
|
response.correct = true;
|
|
if (trial.response_ends_trial) {
|
|
end_trial();
|
|
}
|
|
} else {
|
|
response.correct = false;
|
|
if(!trial.response_ends_trial && trial.display_feedback == true) {
|
|
wImg.style.visibility = "visible";
|
|
}
|
|
if (trial.response_ends_trial && trial.display_feedback == true) {
|
|
wImg.style.visibility = "visible";
|
|
if(trial.force_correct_key_press) {
|
|
var keyListener = jsPsych.pluginAPI.getKeyboardResponse({
|
|
callback_function: end_trial,
|
|
valid_responses: [trial.right_category_key]
|
|
});
|
|
} else {
|
|
var keyListener = jsPsych.pluginAPI.getKeyboardResponse({
|
|
callback_function: end_trial,
|
|
valid_responses: trial.key_to_move_forward
|
|
});}
|
|
} else if(trial.response_ends_trial && trial.display_feedback != true) {
|
|
var keyListener = jsPsych.pluginAPI.getKeyboardResponse({
|
|
callback_function: end_trial,
|
|
valid_responses: [jsPsych.ALL_KEYS]
|
|
});
|
|
} else if(!trial.response_ends_trial && trial.display_feedback != true) {
|
|
|
|
}
|
|
}
|
|
} else if(trial.stim_key_association == "left") {
|
|
if(response.rt > -1 && response.key == leftKeyCode) {
|
|
response.correct = true;
|
|
if (trial.response_ends_trial) {
|
|
end_trial();
|
|
}
|
|
} else {
|
|
response.correct = false;
|
|
if(!trial.response_ends_trial && trial.display_feedback == true) {
|
|
wImg.style.visibility = "visible";
|
|
}
|
|
if (trial.response_ends_trial && trial.display_feedback == true) {
|
|
wImg.style.visibility = "visible";
|
|
if(trial.force_correct_key_press) {
|
|
var keyListener = jsPsych.pluginAPI.getKeyboardResponse({
|
|
callback_function: end_trial,
|
|
valid_responses: [trial.left_category_key]
|
|
});
|
|
} else {
|
|
var keyListener = jsPsych.pluginAPI.getKeyboardResponse({
|
|
callback_function: end_trial,
|
|
valid_responses: trial.key_to_move_forward
|
|
});}
|
|
} else if(trial.response_ends_trial && trial.display_feedback != true) {
|
|
var keyListener = jsPsych.pluginAPI.getKeyboardResponse({
|
|
callback_function: end_trial,
|
|
valid_responses: [jsPsych.ALL_KEYS]
|
|
});
|
|
} else if(!trial.response_ends_trial && trial.display_feedback != true) {
|
|
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
// start the response listener
|
|
if (trial.left_category_key != jsPsych.NO_KEYS && trial.right_category_key != jsPsych.NO_KEYS) {
|
|
var keyboardListener = jsPsych.pluginAPI.getKeyboardResponse({
|
|
callback_function: after_response,
|
|
valid_responses: [trial.left_category_key, trial.right_category_key],
|
|
rt_method: 'date',
|
|
persist: false,
|
|
allow_held_key: false
|
|
});
|
|
}
|
|
|
|
// end trial if time limit is set
|
|
if (trial.trial_duration > 0 && trial.response_ends_trial != true) {
|
|
jsPsych.pluginAPI.setTimeout(function() {
|
|
end_trial();
|
|
}, trial.trial_duration);
|
|
}
|
|
|
|
};
|
|
|
|
return plugin;
|
|
})();
|