feedbackTime
Experiments
How the feedback screen (from feedback, feedbackCorrect, or feedbackIncorrect) ends: auto-advance after a fixed duration, or wait for the participant to press a NEXT button. It only applies once a feedback message has been displayed; it has no effect on trials that never show feedback.
Syntax
Section titled “Syntax”Put the feedback duration in milliseconds in the cell, for example 1500. Leave the cell empty to show a NEXT button instead, so the participant advances at their own pace.
Options
Section titled “Options”| Value | Behavior |
|---|---|
| empty | No auto-advance. A standard button labeled “NEXT” (localized) is shown; clicking it ends the feedback screen |
number (ms), e.g. 1500 | Feedback stays up that many milliseconds, then the trial ends automatically |
Defaults & missing values
Section titled “Defaults & missing values”If the column is absent or the cell is left empty, the feedback screen waits for a NEXT button click; there is no built-in default duration. Non-numeric values are not validated: an unreadable value behaves like a 0 ms delay, so the feedback flashes for roughly one frame and the trial advances immediately.
Works with
Section titled “Works with”- Only applies when one of the
feedback/feedbackCorrect/feedbackIncorrectmessages was actually selected for display; on trials with no matching message the column is ignored. - In button mode, the NEXT click is not recorded as a trial response; it only dismisses the feedback screen.
- In timed mode, the trial advances when the time elapses even if a response window would otherwise still be open.
- The feedback duration is additional to
ITI; the next trial’s ITI runs after the feedback screen ends.
Examples
Section titled “Examples”Auto-advance after 1 second:
| type | stimFormat | stim1 | keyboard | key | feedback | feedbackTime |
|---|---|---|---|---|---|---|
| test | .mp3 | tone | s d | s | correct: Good!;incorrect: Listen again | 1000 |
type,stimFormat,stim1,keyboard,key,feedback,feedbackTime test,.mp3,tone,s d,s,correct: Good!;incorrect: Listen again,1000
Participant-paced feedback (NEXT button):
| type | content | button1 | button2 | key | feedbackIncorrect | feedbackTime |
|---|---|---|---|---|---|---|
| practice | Press the LEFT button | Left | Right | 1 | That was the right button, try again |
type,content,button1,button2,key,feedbackIncorrect,feedbackTime practice,Press the LEFT button,Left,Right,1,"That was the right button, try again",
Tips & gotchas
Section titled “Tips & gotchas”- The NEXT label’s translation follows the experiment language setting.
- A value of
0is NOT the same as an empty cell:0auto-advances immediately, while an empty cell waits for a NEXT click.
Common combinations
Section titled “Common combinations”feedbackTime appears in these worked recipes:
- Deadline with timeout message: Enforce a response deadline and tell participants when they miss it, without interrupting trials they answer in time.
- Accuracy feedback block: Score keyboard responses and show correct, incorrect, or timeout feedback after every trial.
- Practice, then test: Walk participants through instructions and a feedback practice block before the scored test block.