Accession Number:

ADA247014

Title:

Program 'Cluster' - An Identification of Fixation Cluster Characteristics

Descriptive Note:

Technical note

Corporate Author:

HUMAN ENGINEERING LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• Pillalamarri, Ramakrishna S.
• Barnette, B. D.
• Karsh, Robert
• Birkmire, Deborah P.

Report Date:

1992-01-01

Pagination or Media Count:

25.0

Abstract:

Innovative software techniques to advance methods of analysis in eye movement research have not kept pace with the development of hardware for collecting the samples of eye position Scinto Barnette, 1986. Eye fixation and duration have been the primary measures focused upon to glean knowledge of subjects performance while engaged in cognitive visual tasks. Program cluster was developed as a means of investigating the dynamics of target examination characteristics that did not lend themselves to traditional eye movement analysis methods. The development of this tool proved to be a valuable means of assessing visual activity at a micro level as compared to the gross measures of distribution of visual attention in various areas of the visual field. This report describes the history surrounding the development of program cluster as an analysis tool, the source of input required for its execution, the mechanics of the execution as an interactive process, the programs products of visual displays and data file output, and potential application of such a tool for analysis of visual activity. clusters target discrimination eye movements visual attention fixations visual examination.

Descriptors:

• *TARGET DISCRIMINATION
• *EYE MOVEMENTS
• COMPUTER PROGRAMS
• INPUT
• TARGETS
• HISTORY
• ATTENTION
• EYE
• MECHANICS
• OUTPUT
• DYNAMICS

Subject Categories:

• Anatomy and Physiology
• Computer Programming and Software
• Fire Control and Bombing Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE