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Behavior Research Methods & Instrumentation

, Volume 7, Issue 2, pp 137–142 | Cite as

4K laboratory FOCAL

  • S. W. Link
Session VI Contributed Papers: Programming Languages And Systems
  • 139 Downloads

Abstract

While FOCAL has become a commonplace calculational language in many small computer laboratories, the use of FOCAL as an experimental control system has been largely ignored. In the present paper, a 4K FOCAL laboratory system is described. Extensions to the FOCAL function and command lists provide for integer manipulations, high- and low-speed output, and a variable DO statement. By providing access to experimental peripheral devices, FOCAL can be used as a powerful operating system. As an illustration, a two-choice reaction time experiment is discussed, a FOCAL control program for this experiment is described, and an assembly language listing illustrates how changes to FOCAL can be made.

Keywords

Assembly Language Probability Display Memory Area Focal Program Focal Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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Copyright information

© Psychonomic Society, Inc. 1975

Authors and Affiliations

  • S. W. Link
    • 1
  1. 1.Department of PsychologyMcMaster UniversityHamiltonCanada

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