octave-psychtoolbox-3 – toolbox for vision research – Octave bindings

Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and GNU/Octave functions for vision research. It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer.

The Psychophysics Toolbox interfaces between Matlab or Octave and the computer hardware. The Psychtoolbox’s core routines provide access to the display frame buffer and color lookup table, allow synchronization with the vertical retrace, support millisecond timing, allow access to OpenGL commands, and facilitate the collection of observer responses. Ancillary routines support common needs like color space transformations and the QUEST threshold seeking algorithm.

See also http://www.psychtoolbox.org/UsingPsychtoolboxOnUbuntu for additional information about systems tune-up and initial configuration.

This package contains bindings for Octave.


David H. Brainard (1997). The Psychophysics Toolbox. Spatial Vision, 10, 443-446. [DOI]

D.G. Pelli (1997). The VideoToolbox software for visual psychophysics: Transforming numbers into movies. Spatial Vision, 10, 437-442. [DOI] [Pubmed]

Package availability chart


Base version

Our version


Debian GNU/Linux 10.0 (buster)

i386, amd64, ppc64el

Debian GNU/Linux 11.0 (bullseye)

i386, amd64

Debian GNU/Linux 12.0 (bookworm)

i386, amd64

Debian GNU/Linux 9.0 (stretch)

i386, amd64

Debian testing (trixie)

Debian unstable (sid)

i386, amd64

Ubuntu 16.04 “Xenial Xerus” (xenial)

i386, amd64

Ubuntu 18.04 “Bionic Beaver” (bionic)

i386, amd64

Ubuntu 20.04 “Focal Fossa” (focal)


Ubuntu 22.04 “Jammy Jellyfish” (jammy)



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