mirror of
https://github.com/jspsych/jsPsych.git
synced 2025-05-11 16:18:11 +00:00
122 lines
3.4 KiB
JavaScript
122 lines
3.4 KiB
JavaScript
/**
|
|
* jspsych-reconstruction
|
|
* a jspsych plugin for a reconstruction task where the subject recreates
|
|
* a stimulus from memory
|
|
*
|
|
* Josh de Leeuw
|
|
*
|
|
* documentation: docs.jspsych.org
|
|
*
|
|
*/
|
|
|
|
(function($) {
|
|
jsPsych['reconstruction'] = (function() {
|
|
|
|
var plugin = {};
|
|
|
|
plugin.create = function(params) {
|
|
|
|
//params = jsPsych.pluginAPI.enforceArray(params, ['data']);
|
|
|
|
var n_trials = (typeof params.starting_value == 'undefined') ? 1 : params.starting_value.length
|
|
|
|
var trials = [];
|
|
for (var i = 0; i < n_trials; i++) {
|
|
trials.push({
|
|
starting_value: (typeof params.starting_value == 'undefined') ? 0.5 : params.starting_value[i],
|
|
stim_function: params.stim_function,
|
|
step_size: params.step_size || 0.05,
|
|
key_increase: params.key_increase || 'h',
|
|
key_decrease: params.key_decrease || 'g'
|
|
});
|
|
}
|
|
return trials;
|
|
};
|
|
|
|
plugin.trial = function(display_element, trial) {
|
|
|
|
// if any trial variables are functions
|
|
// this evaluates the function and replaces
|
|
// it with the output of the function
|
|
trial = jsPsych.pluginAPI.normalizeTrialVariables(trial, ['stim_function']);
|
|
|
|
// current param level
|
|
var param = trial.starting_value;
|
|
|
|
// set-up key listeners
|
|
var after_response = function(info){
|
|
|
|
//console.log('fire');
|
|
|
|
var key_i = (typeof trial.key_increase == 'string') ? jsPsych.pluginAPI.convertKeyCharacterToKeyCode(trial.key_increase) : trial.key_increase;
|
|
var key_d = (typeof trial.key_decrease == 'string') ? jsPsych.pluginAPI.convertKeyCharacterToKeyCode(trial.key_decrease) : trial.key_decrease;
|
|
|
|
// get new param value
|
|
if(info.key == key_i) {
|
|
param = param + trial.step_size;
|
|
} else if(info.key == key_d) {
|
|
param = param - trial.step_size;
|
|
}
|
|
param = Math.max(Math.min(1,param),0);
|
|
|
|
// refresh the display
|
|
draw(param);
|
|
}
|
|
|
|
// listen for responses
|
|
var key_listener = jsPsych.pluginAPI.getKeyboardResponse(after_response, [trial.key_increase, trial.key_decrease], 'date', true);
|
|
|
|
// draw first iteration
|
|
draw(param);
|
|
|
|
function draw(param){
|
|
|
|
//console.log(param);
|
|
|
|
display_element.html('');
|
|
|
|
display_element.append($('<div id="jspsych-reconstruction-stim-container"></div>'));
|
|
|
|
$('#jspsych-reconstruction-stim-container').html(trial.stim_function(param));
|
|
|
|
// add submit button
|
|
display_element.append($('<button>', {
|
|
'id': 'jspsych-survey-text-next',
|
|
'class': 'jspsych-survey-text'
|
|
}));
|
|
$("#jspsych-survey-text-next").html('Submit Answers');
|
|
$("#jspsych-survey-text-next").click(endTrial);
|
|
}
|
|
|
|
function endTrial(){
|
|
// measure response time
|
|
var endTime = (new Date()).getTime();
|
|
var response_time = endTime - startTime;
|
|
|
|
// save data
|
|
jsPsych.data.write($.extend({}, {
|
|
"rt": response_time,
|
|
"final_value": param,
|
|
"start_value": trial.starting_value
|
|
}, trial.data));
|
|
|
|
display_element.html('');
|
|
|
|
// next trial
|
|
if (trial.timing_post_trial > 0) {
|
|
setTimeout(function() {
|
|
jsPsych.finishTrial();
|
|
}, trial.timing_post_trial);
|
|
} else {
|
|
jsPsych.finishTrial();
|
|
}
|
|
}
|
|
|
|
var startTime = (new Date()).getTime();
|
|
|
|
};
|
|
|
|
return plugin;
|
|
})();
|
|
})(jQuery);
|