# Fwd: Re: \[psychtoolbox\] generating stimuli

**URL:** <https://psychtoolbox.discourse.group/t/fwd-re-psychtoolbox-generating-stimuli/1420>\
**Category:** Uncategorized\
**Created:** [September 16, 2002, 9:15pm UTC](https://psychtoolbox.discourse.group/t/fwd-re-psychtoolbox-generating-stimuli/1420 "2002-09-16T21:15:05Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![denispelli](https://avatars.discourse-cdn.com/v4/letter/d/cdc98d/32.png) [@denispelli](https://psychtoolbox.discourse.group/u/denispelli)\
**Post date:** [September 16, 2002, 9:15pm UTC](https://psychtoolbox.discourse.group/t/fwd-re-psychtoolbox-generating-stimuli/1420/1 "2002-09-16T21:15:05Z")

</div>

> \>Date: Mon, 16 Sep 2002 17:14:37 -0400  
> \>To: [CHRISTKN@...](mailto:CHRISTKN@...)  
> \>From: Denis Pelli \<[denis.pelli@...](mailto:denis.pelli@...)\>  
> \>Subject: Re: [psychtoolbox] generating stimuli  
> \>Cc:  
> \>Bcc:  
> \>X-Attachments:  
> \>  
> \>\>I need a program that can randomly generate stimuli using given parameters  
> \>\>on every trial. Can psychophysics tool box do this? If so, how?   
> \>\>  
> \>\>Kristin  
> \>\>  
> \>  
> \>dear kristin  
> \>  
> \>yes. you have to write it.  
> \>  
> \>NoiseDemo is an example of that. It shows different noise every time.  
> \>Matlab is a complete powerful programming language and it has random   
> \>number generators so it's straightforward to introduce whatever   
> \>degree of randomness you like into the stimulus synthesis process  
> \>  
> \>best  
> \>  
> \>denis