Psychtoolbox

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Win

Psychophysics Toolbox

Help

Reporting bugs and asking for help
Help for Psychtoolbox
Help for MATLAB
Bug in Psychtoolbox
Bug in MATLAB

Reporting bugs and asking for help

Bug reports and requests for help are much easier to deal with if you're using the current version of the software, which you can get from the download page.

Help for Psychtoolbox

For beginners: Psychtoolbox Tutorial and Ione Fine's Psychtoolbox Tutorial.
The Psychtoolbox includes built-in help available from the MATLAB command line.
- Enter "help Psychtoolbox" at the MATLAB prompt for a list of Psychtoolbox function categories.
- To display a list of Psychtoolbox functions within a category ask for help with the category, e.g. "help PsychBasic."
- To get help for a Psychtoolbox function ask for help on the function, e.g. "help GetChar."
- Psychtoolbox functions such as Screen,which accept a subcommand as an argument, include built-in help for there subcommands.
  - For a list of all subcommands issue the function call with no arguments, e.g. enter "Screen" at the command line.
  - To display documentation for a subcommand invoke the subcommand with a trailing question mark, e.g. Screen('OpenWindow?')
Read our answers to frequently asked questions.
Your friends and colleagues might help. Check out the Psychtoolbox forum.

Help for MATLAB

Typing "doc" in MATLAB will activate their browser-based help system, which is quite handy.
You can search the Mathworks web site.
There's an active MATLAB newsgroup (mostly Windows and unix users).
Typing "help" and "help help" at the MATLAB command line will list help topics and explain MATLAB help.

Bug in Psychtoolbox

Known unrepaired bugs are listed for Mac, Win and OS X. Bugs which have been repaired in a future (not-yet-released) versions of the Psychtoolbox are listed for Mac, Win and OS X.

It's ok to report bugs that are already on the list. Multiple reports can be helpful because they tell us in which versions of Windows and MATLAB the bug appears.

Reporting a bug in the Psychtoolbox

We're happy to receive bug reports in any form, but ideally you might include:

a brief statement of the problem, including the exact error message, if any
a minimal length MATLAB program that exhibits the fault
a report from ScreenTest.m, to document your computer environment. (Win & OS X: ScreenTest.m is still quite minimal, so just tell us what versions of Windows, MATLAB, and the Psychtoolbox you are using, including any updates that you've applied.)
Email your bug report to the Psychtoolbox Forum at psychtoolbox@yahoogroups.com. David, Denis and Allen read the forum.

Bug in MATLAB

Check our list of known bugs in MATLAB for Macintosh.
If you find bug in MATLAB, please report it to Mathworks: bugs@mathworks.com.
You can help your friends by sending a copy (cc: psychtoolbox@yahoogroups.com) to the Psychtoolbox forum.

visitors since 20 March 2000.

David Brainard, Denis Pelli & Allen Ingling.
psychtoolbox@yahoogroups.com

10 April 2000