Recording and analyzing eye-position data using a microcomputer workstation

C. F. Nodine, H. L. Kundel, L. C. Toto, E. A. Krupinski

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

This paper presents a PC-based eye-position data collection and analysis system. Software routines are described that supplement hardware calibration procedures, improving data-collection accuracy and reducing the number of unusable trials. Collected eye-position data can be remapped over a displayed stimulus image and spatially and temporally represented by parameters such as individual fixations, clusters of fixations (Nodine, Carmody, & Kundel, 1978), cumulative clusters, and gaze durations. An important feature of the system is that the software routines preserve scan-path information that provides a sequential dimension to the analysis of eye-position data. A "hotspot" analysis is also described, which cumulates, across 1 or more observers, the frequency of eye-position landings or "hits" on designated areas of interest for a given stimulus. Experimental applications in the fields of radiology, psychology, and art are provided, illustrating how eye-position data can be interpreted both in signal detection and in information-processing frameworks using the present methods of analysis.

Original languageEnglish (US)
Pages (from-to)475-485
Number of pages11
JournalBehavior Research Methods, Instruments, & Computers
Volume24
Issue number3
DOIs
StatePublished - Sep 1992
Externally publishedYes

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Psychology (miscellaneous)
  • Psychology(all)

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