Effects of Stereoscopic Depth on Vigilance Performance and Cerebral Hemodynamics.

Autor:	Greenlee ET; University of Alabama, Tuscaloosa., Funke GJ; Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio Gregory.Funke.1@us.af.mil., Warm JS; University of Dayton Research Institute, Dayton, Ohio., Finomore VS Jr; Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio., Patterson RE; Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio., Barnes LE; Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio., Funke ME; Naval Medical Research Unit, Dayton, Ohio., Vidulich MA; Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio.
Jazyk:	angličtina
Zdroj:	Human factors [Hum Factors] 2015 Sep; Vol. 57 (6), pp. 1063-75. Date of Electronic Publication: 2015 Feb 11.
DOI:	10.1177/0018720815572468
Abstrakt:	Objective: We tested the possibility that monitoring a display wherein critical signals for detection were defined by a stereoscopic three-dimensional (3-D) image might be more resistant to the vigilance decrement, and to temporal declines in cerebral blood flow velocity (CBFV), than monitoring a display featuring a customary two-dimensional (2-D) image. Background: Hancock has asserted that vigilance studies typically employ stimuli for detection that do not exemplify those that occur in the natural world. As a result, human performance is suboptimal. From this perspective, tasks that better approximate perception in natural environments should enhance performance efficiency. To test that possibility, we made use of stereopsis, an important means by which observers interact with their everyday surroundings. Method: Observers monitored a circular display in which a vertical line was embedded. Critical signals for detection in a 2-D condition were instances in which the line was rotated clockwise from vertical. In a 3-D condition, critical signals were cases in which the line appeared to move outward toward the observer. Results: The overall level of signal detection and the stability of detection over time were greater when observers monitored for 3-D changes in target depth compared to 2-D changes in target orientation. However, the 3-D display did not retard the temporal decline in CBFV. Conclusion: These results provide the initial demonstration that 3-D displays can enhance performance in vigilance tasks. Application: The use of 3-D displays may be productive in augmenting system reliability when operator vigilance is vital. (© 2015, Human Factors and Ergonomics Society.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu