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Hardware and software for tachistoscopy: how to make accurate measurements on any PC utilizing the Microsoft Windows operating system.

Publication ,  Journal Article
McKinney, CJ; MacCormac, ER; Welsh-Bohmer, KA
Published in: Behav Res Methods Instrum Comput
February 1999

Methods for automated stimulus display and accurate response time measurement with IBM-compatible PCs are of great importance in cognitive research designs. Accurate measurements of reaction times are required to interpolate other measures, such as speed of mental processing. We present a description of hardware and software that displays stimulus images and performs reaction timing that is not dependent on PC performance characteristics. This is accomplished by electronically bypassing timing errors normally inherent to the operation of the computer. A high-precision external timer measures the time between stimulus onset and a subject's push-button response while a video blanking circuit controls the video presented to the monitor screen. Two options for accurately detecting stimulus onset are presented: (1) A photodetector can be used to sense the actual onset of the stimulus on a secondary video monitor screen; (2) the video blanking circuit can provide a signal coincident with the initiation of video to the monitor. Both methods result in a system timing accuracy of 100 microseconds.

Duke Scholars

Published In

Behav Res Methods Instrum Comput

DOI

ISSN

0743-3808

Publication Date

February 1999

Volume

31

Issue

1

Start / End Page

129 / 136

Location

United States

Related Subject Headings

  • Software
  • Reaction Time
  • Psychology
  • Photic Stimulation
  • Microcomputers
  • Humans
  • Experimental Psychology
  • Computers
  • 5204 Cognitive and computational psychology
  • 5202 Biological psychology
 

Citation

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ICMJE
MLA
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McKinney, C. J., MacCormac, E. R., & Welsh-Bohmer, K. A. (1999). Hardware and software for tachistoscopy: how to make accurate measurements on any PC utilizing the Microsoft Windows operating system. Behav Res Methods Instrum Comput, 31(1), 129–136. https://doi.org/10.3758/bf03207703
McKinney, C. J., E. R. MacCormac, and K. A. Welsh-Bohmer. “Hardware and software for tachistoscopy: how to make accurate measurements on any PC utilizing the Microsoft Windows operating system.Behav Res Methods Instrum Comput 31, no. 1 (February 1999): 129–36. https://doi.org/10.3758/bf03207703.
McKinney CJ, MacCormac ER, Welsh-Bohmer KA. Hardware and software for tachistoscopy: how to make accurate measurements on any PC utilizing the Microsoft Windows operating system. Behav Res Methods Instrum Comput. 1999 Feb;31(1):129–36.
McKinney, C. J., et al. “Hardware and software for tachistoscopy: how to make accurate measurements on any PC utilizing the Microsoft Windows operating system.Behav Res Methods Instrum Comput, vol. 31, no. 1, Feb. 1999, pp. 129–36. Pubmed, doi:10.3758/bf03207703.
McKinney CJ, MacCormac ER, Welsh-Bohmer KA. Hardware and software for tachistoscopy: how to make accurate measurements on any PC utilizing the Microsoft Windows operating system. Behav Res Methods Instrum Comput. 1999 Feb;31(1):129–136.

Published In

Behav Res Methods Instrum Comput

DOI

ISSN

0743-3808

Publication Date

February 1999

Volume

31

Issue

1

Start / End Page

129 / 136

Location

United States

Related Subject Headings

  • Software
  • Reaction Time
  • Psychology
  • Photic Stimulation
  • Microcomputers
  • Humans
  • Experimental Psychology
  • Computers
  • 5204 Cognitive and computational psychology
  • 5202 Biological psychology