Using keyboard buttons to move slider direction left and right

[eakwayena]

If this template helps then use it. If not then just delete and start from scratch.

OS : Windows 10 Home Version 21 H2 OS Build 19044.1645
PsychoPy version (e.g. 1.84.x): 2020.1.2
What are you trying to achieve?: My experiment uses a slider and participants are asked to move the slider marker to various positions (either in the left or right direction). This experiment will be run online and in a scanner, so I will be using keyboard presses instead of the mouse, but am unsure how to successfully code the values 1, 2, and 3 (in builder or the coder) to indicate left, right and to confirm the selection. Is there a way to do this in the builder or can it only be done through the coder window?

What did you try to make it work?: In the coder I tried: leftKeys=‘1’, rightKeys = ‘2’, acceptKeys=‘3’)

What specifically went wrong when you tried that?:
Include pasted full error message if possible. “That didn’t work” is not enough information. “TypeError: init() got an unexpected keyword argument ‘leftKeys’”

[sjw42]

Hello - I am trying to achieve the same basic thing that you described in your post. Where you able to get a keyboard-controlled slider working? If so, any chance you would be willing to share your code or info about how you set things up? Thanks very much for considering!

[eakwayena]

Absolutely! This is a screenshot from the each frame tab. In addition to this. I also created a keyboard component in the builder that has ‘1’ and ‘2’ as allowable keys. Basically the code states that clicking 2 moves the slider marker position to the left and 3 moves the slidermarker pos to the right. Granularity just represents the slider speed so feel free to customize as you wish. Hope this helps!