post_trial_gap blocked the programme

[ZifengLIU143]

Hi,
when I add a post_trial_gap between two trials, the programme is blocked. It does not work anymore. But it works well when I specify the trial_duration. This is my code, could you please have a look at it? Perhaps I misunderstood some fundamental principles behind these two parameters. Thanks!

`var test = {
  type:jsPsychAudioKeyboardResponse,
  stimulus: function(){
    return jsPsych.timelineVariable("pathFile")},
  choices: "NO_KEYS",
  post_trial_gap: 500
};

var test1 = {
  type: jsPsychHtmlButtonResponse,
  stimulus: "",
  choices:['0','1','2','3','4','5','6','7','8','9','Continue']
};

/* define test procedure */
var test_procedure = {
  timeline: [test, test1],
  timeline_variables: demostimuli,
  randomize_order: true,
};

timeline.push(test_procedure)`

[jodeleeuw]

Hi @ZifengLIU143,

In your audio trial, there is no duration set on the length of the trial, so the trial lasts indefinitely because no keyboard responses are allowed. If you want the trial to end after the audio finishes playing, you can use the trial_ends_after_audio: true parameter.

var test = {
  type:jsPsychAudioKeyboardResponse,
  stimulus: function(){
    return jsPsych.timelineVariable("pathFile")},
  choices: "NO_KEYS",
  trial_ends_after_audio: true,
  post_trial_gap: 500
};

[ZifengLIU143]

Thank you very much! It works now!