A system of interfaces for the Commodore 64 (C-64) microcomputer for use in the operant laboratory is described. This system frees the experimenter from limitations on the number of I/O lines available on the user port of the C-64 and offers the control of operant chambers for a low cost. Subroutines in machine code to control the interfaces, offering millisecond timing of external events, are presented. A sample BASIC program demonstrates how the subroutines are called from BASIC to run a simple discrimination experiment.
|Original language||English (US)|
|Number of pages||7|
|Journal||Behavior Research Methods, Instruments, & Computers|
|State||Published - Jan 1 1990|
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Psychology (miscellaneous)