Accession Number : ADA334286

Title :   Dynamically Adaptive Interfaces: A Preliminary Investigation

Descriptive Note : Interim rept. Jan 96-Mar 97

Corporate Author : WRIGHT STATE UNIV DAYTON OH DEPT OF PSYCHOLOGY

Personal Author(s) : Bennett, Kevin B.

PDF Url : ADA334286

Report Date : AUG 1997

Pagination or Media Count : 41

Abstract : A dynamically adaptive interface (DAI) changes it's display or control characteristics based on behavioral or physiologic measures of the human operator in real time. The goal of a dynamically adaptive interface is to anticipate informational needs or desires of the operator and to provide that information without the requirement for an explicit control input. DAIs have the potential to improve overall human machine system performance if properly designed. This report documents an initial exploration of both theoretical and practical issues in dynamically adaptive interfaces. A DAI concept demonstrator was developed to assist in precision low level navigation tasks. Advanced controls (a force reflecting stick) and displays (a flight director display) were incorporated into a dynamically adaptive interface concept demonstrator. A pilot study to evaluate the DAI was conducted. Three experimental conditions were evaluated: a baseline interface (conventional controls and displays), an advanced interface (advanced controls and displays), and an adaptive interface (dynamically alternating between baseline and advanced). The results indicated that there were significant performance advantages associated with both the advanced and adaptive interfaces relative to the baseline interface for tracking the optimal flight path.

Descriptors :   *ADAPTIVE CONTROL SYSTEMS, *MAN MACHINE SYSTEMS, *MAN COMPUTER INTERFACE, FLIGHT CONTROL SYSTEMS, COCKPITS, REAL TIME, HUMAN FACTORS ENGINEERING, PATTERN RECOGNITION, HEAD UP DISPLAYS, DECISION SUPPORT SYSTEMS.

Subject Categories : Flight Control and Instrumentation
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE