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 language | English (US) |
|---|---|
| Pages (from-to) | 475-485 |
| Number of pages | 11 |
| Journal | Behavior Research Methods, Instruments, & Computers |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 1992 |
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Psychology (miscellaneous)
- General Psychology