', {
+ html: trial.a_path,
+ id: 'jspsych-single-stim-stimulus'
+ }));
+ }
- //show prompt if there is one
- if (trial.prompt !== "") {
- display_element.append(trial.prompt);
- }
+ //show prompt if there is one
+ if (trial.prompt !== "") {
+ display_element.append(trial.prompt);
+ }
- // function to end trial when it is time
- var end_trial = function(info) {
+ // function to end trial when it is time
+ var end_trial = function(info) {
- // kill any remaining setTimeout handlers
- for(var i = 0; i < setTimeoutHandlers.length; i++){
- clearTimeout(setTimeoutHandlers[i]);
- }
+ // kill any remaining setTimeout handlers
+ for(var i = 0; i < setTimeoutHandlers.length; i++){
+ clearTimeout(setTimeoutHandlers[i]);
+ }
- // kill keyboard listeners
- jsPsych.pluginAPI.cancelKeyboardResponse(keyboardListener);
+ // kill keyboard listeners
+ jsPsych.pluginAPI.cancelKeyboardResponse(keyboardListener);
- // gather the data to store for the trial
- var trial_data = {
- "trial_type": "single-stim",
- "trial_index": block.trial_idx,
- "rt": info.rt,
- "stimulus": trial.a_path,
- "key_press": info.key
- };
+ // gather the data to store for the trial
+ var trial_data = {
+ "rt": info.rt,
+ "stimulus": trial.a_path,
+ "key_press": info.key
+ };
- block.writeData($.extend({}, trial_data, trial.data));
+ block.writeData($.extend({}, trial_data, trial.data));
- // clear the display
- display_element.html('');
+ // clear the display
+ display_element.html('');
- // move on to the next trial
- if (trial.timing_post_trial > 0) {
- setTimeout(function() {
- block.next();
- }, trial.timing_post_trial);
- }
- else {
- block.next();
- }
- };
+ // move on to the next trial
+ if (trial.timing_post_trial > 0) {
+ setTimeout(function() {
+ block.next();
+ }, trial.timing_post_trial);
+ } else {
+ block.next();
+ }
+ };
- // function to handle responses by the subject
- var after_response = function(info) {
+ // function to handle responses by the subject
+ var after_response = function(info) {
- // 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
- $("#jspsych-single-stim-stimulus").addClass('responded');
+ // 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
+ $("#jspsych-single-stim-stimulus").addClass('responded');
- if (trial.continue_after_response) {
- // response triggers the next trial in this case.
- // if hide_image_after_response is true, then next
- // trial should be triggered by timeout function below.
- end_trial(info);
- }
- };
+ if (trial.continue_after_response) {
+ // response triggers the next trial in this case.
+ // if hide_image_after_response is true, then next
+ // trial should be triggered by timeout function below.
+ end_trial(info);
+ }
+ };
- // start the response listener
- var keyboardListener = jsPsych.pluginAPI.getKeyboardResponse(after_response, trial.choices);
+ // start the response listener
+ var keyboardListener = jsPsych.pluginAPI.getKeyboardResponse(after_response, trial.choices);
- // hide image if timing is set
- if (trial.timing_stim > 0) {
- var t1 = setTimeout(function() {
- $('#jspsych-single-stim-stimulus').css('visibility', 'hidden');
- }, trial.timing_stim);
- setTimeoutHandlers.push(t1);
- }
+ // hide image if timing is set
+ if (trial.timing_stim > 0) {
+ var t1 = setTimeout(function() {
+ $('#jspsych-single-stim-stimulus').css('visibility', 'hidden');
+ }, trial.timing_stim);
+ setTimeoutHandlers.push(t1);
+ }
- // end trial if time limit is set
- if (trial.timing_response > 0) {
- var t2 = setTimeout(function() {
- end_trial({rt: -1, key: -1});
- }, trial.timing_response);
- setTimeoutHandlers.push(t2);
- }
+ // end trial if time limit is set
+ if (trial.timing_response > 0) {
+ var t2 = setTimeout(function() {
+ end_trial({rt: -1, key: -1});
+ }, trial.timing_response);
+ setTimeoutHandlers.push(t2);
+ }
};