Calendar

May 27

13th Intl. Conf. on New Interfaces for Musical Expression

May 28

Graphics Interface 2013

May 29

Intl. Workshop on Design and Spontaneity in Computer-Supported Collaborative Learning (DS-CSCL 2013)

May 22

“ User error: replace user and press any key to continue. ”

-- Popular computer one-liner

Share this quote on...
Get more quotes via RSS or by joining our Usability Quote of the Day Facebook Page

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

Help us help you!

Spread the word:
Donate
Other ways to help

Barry S. Grant

Add description

← Button will not work: You have not enabled Javascript. How do I enable it?

Rename / change spelling

Add publication

← Button will not work: You have not enabled Javascript. How do I enable it?

Publications by Barry S. Grant (bibliography)

1995

Edit | Del

Grant, Barry S., Kiefer, Raymond J. and Wierwille, Walter W. (1995): Drivers' Detection and Identification of Head-Up versus Head-Down Telltale Warnings in Automobiles. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 1087-1091.

“Previous automotive head-up display (HUD) research reported in the human factors literature has focused almost exclusively on the presentation of speed information. This paper, however, reports the results of a study which focused on telltale warning detection and identification. In this on-road study, eight younger (21 to 36 years) and eight older (63 to 72 years) drivers were tested. During a short familiarization drive, an unexpected brake telltale was presented up to four times in either a head-up or head-down display condition. The ability of drivers to detect (i.e., visually fixate upon) and identify (i.e., report) the brake telltale was assessed via self-reports and video analysis of the drivers' eye movements in response to telltale onsets. Later in the study, drivers were explicitly instructed to perform various tasks, including telltale detection, under both display conditions. Detection rates for an expected brake telltale were analyzed. Results of the study suggest that drivers will detect and identify briefly presented telltale warnings sooner, and with greater probability, when they are presented on a HUD as opposed to a conventional head-down display.”

1992

Edit | Del

Grant, Barry S. and Wierwille, Walter W. (1992): An Accuracy Analysis of Techniques for Measuring the Durations of In-Car Manual Tasks. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. pp. 1190-1194.

“Human factors research of automobile driver behavior often calls for timing in-car manual tasks. The present study was designed to compare the accuracy, bias, and consistency of various techniques for measuring in-car manual task durations. Additionally, this research was intended to reveal how closely these techniques approach the preciseness of the frame-by-frame video analysis method, which is time-consuming and expensive to perform. Six subjects were required to use an electronic stopwatch to measure "hand-off-wheel" times for 30 driver tasks. Each subject performed this procedure three times: while sitting as an observer in the back seat of a research vehicle, while watching a real-time video recording of task performance, and while watching a one-sixth real-time video recording of task performance. Timing Method (three levels), Duration of in-car task (three levels), and Subject (six levels) served as independent variables. Dependent measures gathered were raw timing error (a measure of response bias), absolute timing error (a measure of response accuracy), and squared timing error (a measure of response consistency). Timing error was obtained by subtracting the measured time for a particular task from the "true" task time obtained by using the frame-by-frame video analysis technique. Analysis of the data indicated a significant effect of method on response bias. Specifically, use of the slow-motion video technique resulted in overestimation of in-car task durations, and use of the two real-time techniques resulted in estimates of task durations that were either equal to or less than the true durations. Significant effects of Subject, Gender, and Subject x Method were also revealed. The results suggest that the on-road timing technique should be used in the future, since this procedure requires little in terms of cost and implementation time, and errors are small when compared with the frame-by-frame technique.”

Add publication