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DMDX: a windows display program with millisecond accuracy.

Kenneth I Forster1, Jonathan C Forster

  • 1Department of Psychology, University of Arizona, Tucson 85721, USA. kforster@u.arizona.edu

Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc
|May 2, 2003
PubMed
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DMDX is a Windows program for language experiments, ensuring accurate audio-visual timing using DirectX. This software offers precise synchronization for research but does not provide source code access.

Area of Science:

  • Cognitive psychology
  • Computational linguistics
  • Experimental psychology

Background:

  • Accurate timing is crucial for language processing research.
  • Existing software may not meet the precise synchronization needs of experiments.

Purpose of the Study:

  • To introduce DMDX, a Windows-based program for language processing experiments.
  • To detail the design and timing accuracy of DMDX.

Main Methods:

  • Utilizes Pentium class CPUs and DirectX libraries for synchronized output.
  • Performance was evaluated through timing accuracy tests.

Main Results:

  • DMDX demonstrates accurate timing and synchronization of visual and audio stimuli.
  • The program leverages hardware features for enhanced experimental control.

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Conclusions:

  • DMDX is a viable tool for researchers needing precise stimulus presentation in language experiments.
  • The software is available for download, facilitating its adoption in the scientific community.