Reset mouse position to center in OSWeb

sebastiaan

Hi all,

Several people have asked me whether it's possible to reset the position of the mouse cursor to the center in OSWeb. This is not possible, because for security reasons you cannot change the mouse-cursor position through JavaScript. (Imagine the consequences if this were possible!)

As a workaround, you can have participants click on the center of the screen, and only continue the experiment when they've clicked sufficiently close to the center. I attached an example script below. The downside is that this disrupts the flow of the experiment, so use with caution!

Cheers,

Sebastiaan

click_on_center.osexp

kiwifoxb612

Hello Sebastiaan,

I can't download this file. Can you upload it again plz?

Thanks!

Best,

Han

sebastiaan

@kiwifoxb612 You can download it again through the link above!

DahmSF

Hi @sebastiaan,

this is a very helpful information!

Maybe it is worth considering to put this info into javascript common functions of the manual in the website which is where i searched first.

Maybe to add: there is no function Mouse.set_pos(pos=(0, 0)) in javascript, but a workaround.

Stephan