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An extension of Kieras' general experiment programming system for computer-aided experimentation is described. The extension includes a support system for program preparation and data recovery and an efficient experiment control system. The result is a system that can run multiple subjects independently with a minimal amount of effort expended in preparation for the experiment. The implementation procedure for this system is outlined, and the paper concludes with a discussion of the type of facility which could make best use of the system. [ABSTRACT FROM AUTHOR]

The language SP-12 for a PDP-12 computer is described. SP-12 is an example of how a special-purpose language can be constructed from a set of machine-language subroutines that are called by a simple interpreter. Symbolic source programs make it easy to learn the language. Preliminary translation of the source program into binary code, using an assembler, greatly increases the speed of the interpreter. [ABSTRACT FROM AUTHOR]

A PDP-12 is used to conduct operant experiments in which peak force, duration, time integral of force, and interresponse time may each serve as the criterion response property for reinforcement, and all four properties are simultaneously recorded as dependent variables. Calibration, acquisition and control, and data analysis programs are described. [ABSTRACT FROM AUTHOR]