Collecting RTs from mouse click (left vs. right mouse button), and show a visual feedback

Builder
1

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

OS (e.g. Win10): Win10
PsychoPy version (e.g. 1.84.x): 2021.2.3
Standard Standalone? (y/n) Yes
**What are you trying to achieve?: I just need a simple task in which participants have to press one button of the mouse (e.g., the left one) if “1” appears, and another button (e.g., the right one) if “2” appears. I want to store RTs (from the onset of the number and the “click” on the mouse), and also I want to display a feedback, saying: “no response”, “correct”, or “error”.

**What did you try to make it work?: I tried to use the code component within the Builder

What specifically went wrong when you tried that?:
Apparently, everything works well, but the feedback that I get is always the same. Moreover, I cannot store RTs properly. My code experiment, and the excel file with conditions, are attached. Many thanks in advance! MD
mouse.psyexp (16.8 KB)
stimuli.xlsx (9.4 KB)

2

Hello MD84,

try the following code in place of your code.

button = mouse.getPressed()
slow = [0,0,0]

if button == slow:
    msg='SLOW'
    msgColor='black'
elif button[0] == 1 and corr == 0:
    msg='O'
    msgColor='green'
elif button[2] == 1 and corr == 2:
    msg='O'
    msgColor='green'
else:
    msg='X'
    msgColor='red'

get.Pressed returns a 3-item list indicating whether or not buttons 0,1,2 are currently pressed.

Best wishes Jens

1 Like
3

Hi there,

Linking this tutorial for feedback from the mouse as it might be helpful. Extending Builder with code — Workshops for PsychoPy 2022 2022 make sure to have your mouse > data stored to “on click”

1 Like
4

Thank you both, I’ve solved my issues.
Best.