# No Subject

**URL:** <https://psychtoolbox.discourse.group/t/no-subject/941>\
**Category:** Uncategorized\
**Created:** [March 3, 2005, 5:42pm UTC](https://psychtoolbox.discourse.group/t/no-subject/941 "2005-03-03T17:42:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Allen\_Ingling](https://avatars.discourse-cdn.com/v4/letter/a/a183cd/32.png) [@Allen\_Ingling](https://psychtoolbox.discourse.group/u/Allen_Ingling)\
**Post date:** [March 3, 2005, 5:42pm UTC](https://psychtoolbox.discourse.group/t/no-subject/941/1 "2005-03-03T17:42:11Z")

</div>

Hi everyone,  
  
I have just started using Matlab psychotoolbox to  
programme some tasks I need for my psychology  
experiments.  
  
At the moment, I am trying to find a way that would  
allow me to to limit the time participants have to  
respond. i would like them to only have a couple of  
seconds to respond...  
  
No idea how to do it, though..any idea?  
  
J.B.  
  
  
  
Send instant messages to your online friends [http://uk.messenger.yahoo.com](http://uk.messenger.yahoo.com)

---

<div class="post-metadata">

**Author:** ![xeos](https://avatars.discourse-cdn.com/v4/letter/x/ecae2f/32.png) [@xeos](https://psychtoolbox.discourse.group/u/xeos)\
**Post date:** [March 3, 2005, 6:00pm UTC](https://psychtoolbox.discourse.group/t/no-subject/941/2 "2005-03-03T18:00:35Z")

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Here is the code I use for that exact purpose.  
  
josephine Brown wrote:  

> \>   
> \> Hi everyone,  
> \>   
> \> I have just started using Matlab psychotoolbox to  
> \> programme some tasks I need for my psychology  
> \> experiments.  
> \>   
> \> At the moment, I am trying to find a way that would  
> \> allow me to to limit the time participants have to  
> \> respond. i would like them to only have a couple of  
> \> seconds to respond...  
> \>   
> \> No idea how to do it, though..any idea?  
> \>   
> \> J.B.  
> \>   
> \>   
> \>   
> \> Send instant messages to your online friends [http://uk.messenger.yahoo.com](http://uk.messenger.yahoo.com)   
> \>   
> \>   
> \> Post your message to: [psychtoolbox@yahoogroups.com](mailto:psychtoolbox@yahoogroups.com)  
> \> Please indicate OS9, OSX, or WIN version, and include your full name.  
> \> Denis Pelli, David Brainard, and Allen Ingling.  
> \> [http://psychtoolbox.org](http://psychtoolbox.org)  
> \>   
> \> Yahoo! Groups Links  
> \>   
> \>   
> \>   
> \>   
> \>   
> \>   
> \>