Response bar updated by multiple presses

[Paul Groot]

hi,

It seems that you now have a stimulus screen (with a static contents) that
stays on screen until all presses are collected. Then, when the Stimulus
object finishes, you start an inline script that processes all past button
presses. If you would like to update the bar immediately after each button
press, you need a different construct. I think it would be very similar to
the code I used in my VAS example script:
http://pfcgroot.nl/e-prime/83-example-scripts/80-visual-analogue-scale-example-for-e-prime.html
(look at the DragScale function). Also note that you should set the
duration of the Stimulus screen to zero, or set the prerelease to same as
duration.

Best
Paul




On 6 June 2013 18:02, free_operant_task <hollysully at gmail.com> wrote:

> Hi,
>
> I hope someone can help and apologies in advance for my elementary coding
> skills.
>
> I am trying to create a response bar (drawn by the canvas function) that
> is incrementally filled by each button press (each of the multiple button
> presses required for an individual trial). I have tried to combine the
> ScoreBar and MultipleResponseCollection sample scripts from the PST eprime
> support site. I want the number of presses required to be randomly
> determined by an attribute called MaxCount (which is set by RewardProb) at
> the beginning of each trial. Eventually, the duration of each trial will
> also vary depending on RewardProb (this bit works well in another script I
> have).
>
> I am attaching the script that I have so far. It seems to be partially
> working. When the number of presses set by the attribute MaxCount is
> reached, the trial terminates as it should, however, there is a substantial
> delay before the response bar starts filling. Also, I would like the canvas
> to be cleared of all images after each trial (because the next thing I am
> going to work on is making the size of the response bar variable on each
> trial). But for now, I would greatly appreciate any help with getting a
> response bar that fills with each press on a single trial and clears after
> the trial is finished.
>
> Many thanks in advance if you can help!
>
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