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Implementation of a movement paradigm using the Commodore 64 microcomputer.

K Mewes, P D Cheney, J W Trank

    Journal of Neuroscience Methods
    |October 1, 1985
    PubMed
    Summary
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    This study details a cost-effective Commodore 64 microcomputer system for creating alternating movement paradigms in monkeys. The system precisely monitors behavior, provides auditory cues, and delivers rewards, enhancing neuroscience research capabilities.

    Area of Science:

    • Neuroscience
    • Behavioral Science
    • Computer Science

    Background:

    • Implementing precise behavioral paradigms in animal research often requires specialized and expensive equipment.
    • Developing adaptable and affordable systems is crucial for broader accessibility in scientific research.

    Purpose of the Study:

    • To describe the development and implementation of an inexpensive microcomputer-based system for controlling alternating movement paradigms in non-human primates.
    • To demonstrate the versatility of the Commodore 64 microcomputer for complex behavioral task control in neuroscience.

    Main Methods:

    • Utilized a Commodore 64 microcomputer to monitor user-selectable input signals (e.g., joint position) and display them as a cursor on a video monitor.
    • Developed a two-part software package (BASIC and machine language) to manage task functions, hardware interfaces, and user-defined parameters.

    Related Experiment Videos

  • Integrated auditory cues and a reward delivery system (e.g., applesauce) for trial completion feedback.

    • Main Results:

    • The system successfully implemented an alternating movement paradigm, accurately tracking cursor movement and target acquisition.
    • User-defined parameters such as in-target holding time and reinforcement ratio were effectively controlled.
    • The system demonstrated reliable acquisition and display of analog input signals and control of auditory cues and rewards.

    Conclusions:

    • An inexpensive Commodore 64 system can be effectively utilized to implement sophisticated alternating movement paradigms for animal research.
    • The described software and hardware approach offers a versatile and cost-efficient solution for behavioral neuroscience studies.
    • This methodology is applicable to a range of tasks requiring the alternation of behavioral parameters between defined zones.