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eXpTools: a C++ class library for animation, tachistoscopic presentation, and response timing.

C B Warner1, M K Martin

  • 1Department of Psychology, Kutztown University, PA 19530, USA. warner@kutztown.edu

Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc
|September 30, 1999
PubMed
Summary

The eXpTools Library offers advanced animation and tachistoscopic presentation for psychological experiments. This tool enhances visual response time studies using specialized VGA graphics and bit-plane techniques.

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Area of Science:

  • Psychology
  • Computer Science
  • Experimental Design

Background:

  • Developing psychological experiments requires specialized software for precise stimulus presentation.
  • Existing tools may lack advanced animation and high-resolution graphics capabilities.
  • Visual response time experiments demand accurate timing and data collection.

Purpose of the Study:

  • Introduce the eXpTools Library for psychological experiment development.
  • Detail its capabilities in combining animation with tachistoscopic presentation.
  • Highlight its specialized functions for visual response time experiments.

Main Methods:

  • Utilizes C++ classes and assembly language functions for specialized experiment development.
  • Employs bit-plane animation techniques and a novel high-resolution graphics mode.

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  • Supports standard 16-color VGA modes with extended capabilities.

    • Main Results:

    • Enables complex animation and tachistoscopic presentations with hundreds or thousands of frames.
    • Integrates features like page flipping, screen blanking, and video-refresh synchronization.
    • Provides interrupt-driven millisecond timing and keyboard response collection.

    Conclusions:

    • The eXpTools Library provides a powerful, versatile tool for creating sophisticated psychological experiments.
    • Its advanced graphics and timing features enhance the accuracy and complexity of visual response time studies.
    • The library's techniques offer significant improvements over standard VGA capabilities for experimental research.