Xpyriment
The xpyriment back-end is built on top of Expyriment, a library that has been designed specifically for creating cognitive and neuroscientific experiments. It is a light-weight hardware-accelerated back-end with excellent timing properties. If you care about temporal precision, but do not plan on generating complex stimuli (i.e. Gabor patches, random-dot gratings, etc.) xpyriment is a good choice.
Using Expyriment directly
You can find extensive documentation on Expyriment at http://www.expyriment.org/doc. The following code snippet shows a line of text:
from expyriment import stimuli
text = stimuli.TextLine('This is expyriment!')
text.present()
Installing Expyriment on Ubuntu
Ubuntu users can install Expyriment from the Cogsci.nl PPA:
sudo add-apt-repository ppa:smathot/cogscinl
sudo apt-get update
sudo apt-get install expyriment
Citation
Although Expyriment is bundled with the binary distributions of OpenSesame, it is a separate project. When appropriate, please provide the following citation in addition to citing OpenSesame:
Krause, F., & Lindemann, O. (in press). Expyriment: A Python library for cognitive and neuroscientific experiments. Behavior Research Methods.
