Psykinematix is a new OpenGL-based software package dedicated to visual psychophysics running on Macintosh computers only. Psykinematix consists in a unique stand-alone application that does not require any programming skill to create and run complex experiments. Easy to use, subject-friendly, powerful and reliable, Psykinematix runs standard psychophysical protocols, generates and presents complex stimuli, collects subject's responses, and analyzes results on the fly. Psykinematix is also a great learning tool to introduce visual perception and to illustrate psychophysical concepts to students.
v1.4
- Addition of minimum mode & value options to staircase properties panel,
- Addition of threshold estimation option (arithmetic vs geometric, and peaks vs throughs) to staircase properties panel, and "Original Estimation" button to staircase options under Plotter panel,
- Support for time-varying Alpha in Stimulus Control Settings palette,
- Carriage Return not sent anymore by default in 'write' serial commands (has to be specified now explicitly using ),
- Addition of serial command 'send' to support binary values,
- Binary & hexadecimal formats not supported anymore by the serial command 'write byte' (use the new 'send byte' command instead),
- Addition of Endianness option for serial command 'send',
- Report a warning instead of an error when measured frame rate differs from system-reported frame rate, Fixed:
- Memory leak with time-varying stimuli (introduced in 1.4),
- Serial command 'write byte' sending a char instead of decimal value,
- Staircase criterion estimation when p-up larger than n-down,
- Problem with exporting data containing accented characters,
- Gamma correction bug in Mac OS X.
