Rating Scale Memory Leak, changing to Slider

Builder
1

Hi,

I have encountered the known issue with the rating scale having a memory leak.
As such, I have swapped my experiment over to using the slider feature. However, I am attempting to have the input for the slider tied to a keyboard (left, right, accept) buttons.
For the rating scale, I was able to code that, however, I do not see a way to code that for the slider feature.

Any feedback would be greatly helpful.

2

Hi @nsurdel, add a slider and keyboard (set to not end routine on keypress), and use the following code (note keyboard and slider are called key_resp and slider, respectively):

# Begin Routine
slider.markerPos = 2  # Or whatever the middle value of your slider is

# Each Frame
if key_resp.status == STARTED and not waitOnFlip:
    if len(theseKeys):
        if theseKeys[0].name == 'left':
            slider.markerPos -= 1
        elif theseKeys[0].name == 'right':
            slider.markerPos += 1
3

Hi David,

Thanks for your response.
This hasn’t quite appeared to work.

Neither the marker appeared nor the keys move any figurative marker.

Is there, perhaps another way it might work?

4

This should work, here is the Builder file:

controlSlider.psyexp (7.7 KB)