Visual Search Performance With 3-D Auditory Cues: Effects of Motion, Target Location, and Practice

Objectives: We evaluate visual search performance in both static (nonmoving) and dynamic (moving) search environments with and without spatial (3-D) auditory cues to target location. Additionally, the effects of target trajectory, target location, and practice are assessed. Background: Previous research on aurally aided visual search has shown a significant reduction in response times when 3-D auditory cues are displayed, relative to unaided search. However, the vast majority of this research has examined only searches for static targets in static visual environments. The present experiment was conducted to examine the effect of dynamic stimuli upon aurally aided visual search performance. Method: The 8 participants conducted repeated searches for a single visual target hidden among 15 distracting stimuli. The four main conditions of the experiment consisted of the four possible combinations of 3-D auditory cues (present or absent) and search environment (static or dynamic). Results: The auditory cues were comparably effective at reducing search times in dynamic environments (—25%) as in static environments (—22%). Audio cues helped all participants. The cues were most beneficial when the target appeared at large eccentricities and on the horizontal plane. After a brief initial exposure to 3-D audio, no training or practice effects with 3-D audio were found. Conclusion: We conclude that 3-D audio is as beneficial in environments comprising moving stimuli as in those comprising static stimuli. Application: Operators in dynamic environments, such as aircraft cockpits, ground vehicles, and command-and-control centers, could benefit greatly from 3-D auditory technology when searching their environments for visual targets or other time-critical information.

[1]  P. Lachenbruch Statistical Power Analysis for the Behavioral Sciences (2nd ed.) , 1989 .

[2]  K. Jambrosic,et al.  Sound localization , 2004, Proceedings. Elmar-2004. 46th International Symposium on Electronics in Marine.

[3]  Robert S. Bolia,et al.  Aurally Aided Visual Search in Three-Dimensional Space , 1999, Hum. Factors.

[4]  B. Papsin,et al.  The effect of aging on horizontal plane sound localization. , 2000, The Journal of the Acoustical Society of America.

[5]  Richard L. McKinley,et al.  Aurally Aided Visual Search under Virtual and Free-Field Listening Conditions , 1996, Hum. Factors.

[6]  R. Ratcliff Methods for dealing with reaction time outliers. , 1993, Psychological bulletin.

[7]  R A ERICKSON VISUAL SEARCH PERFORMANCE IN MOVING STRUCTURED FIELD. , 1964, Journal of the Optical Society of America.

[8]  K. Saberi,et al.  Auditory psychomotor coordination and visual search performance , 1990, Perception & psychophysics.

[9]  Paul R. Havig,et al.  Aurally aided visual search performance in a dynamic environment , 2008, SPIE Defense + Commercial Sensing.

[10]  G. Glass Primary, Secondary, and Meta-Analysis of Research1 , 1976 .

[11]  Elizabeth M. Wenzel,et al.  A software-based system for interactive spatial sound synthesis , 2000 .

[12]  Derek Brock,et al.  Using an auditory display to manage attention in a dual task, multiscreen environment , 2002 .

[13]  V. Ralph Algazi,et al.  The Use of Head-and-Torso Models for Improved Spatial Sound Synthesis , 2002 .

[14]  Adelbert W. Bronkhorst,et al.  Application of a Three-Dimensional Auditory Display in a Flight Task , 1996, Hum. Factors.

[15]  Michael W. Haas,et al.  Effects of Localized Auditory Information on Visual Target Detection Performance Using a Helmet-Mounted Display , 1998, Hum. Factors.

[16]  Russell L. Martin,et al.  Aurally and Visually Guided Visual Search in a Virtual Environment , 1998, Hum. Factors.

[17]  G. Glass,et al.  Meta-analysis in social research , 1981 .

[18]  T Z Strybel,et al.  Aurally Aided Visual Search in the Central Visual Field: Effects of Visual Load and Visual Enhancement of the Target , 1991, Human factors.

[19]  Jacob Cohen Statistical Power Analysis for the Behavioral Sciences , 1969, The SAGE Encyclopedia of Research Design.

[20]  G M Long,et al.  Dynamic Visual Acuity and Contrast Sensitivity for Static and Flickered Gratings in a College Sample , 1992, Optometry and vision science : official publication of the American Academy of Optometry.

[21]  E D Megaw,et al.  Target Uncertainty and Visual Scanning Strategies , 1979, Human factors.

[22]  K. Saberi,et al.  Minimum audible movement angles as a function of sound source trajectory. , 1990, The Journal of the Acoustical Society of America.

[23]  Tommy R. Morrison A Review of Dynamic Visual Acuity. , 1980 .

[24]  T. Anderson,et al.  Binaural and spatial hearing in real and virtual environments , 1997 .

[25]  D W Grantham,et al.  Minimum audible movement angle in the horizontal plane as a function of stimulus frequency and bandwidth, source azimuth, and velocity. , 1990, The Journal of the Acoustical Society of America.

[26]  Chandler Dw,et al.  Minimum audible movement angle in the horizontal plane as a function of stimulus frequency and bandwidth, source azimuth, and velocity. , 1992 .

[27]  John Paul McIntire Visual Search Performance in a Dynamic Environment with 3D Auditory Cues , 2007 .