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

McIntire, John P.; Havig, Paul R.; Watamaniuk, Scott; Gilkey, Robert H.

doi:10.1177/0018720810368806

Cited by 21 publications

(21 citation statements)

References 17 publications

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“…In fact, detailed analyses, considering the no sound condition as the baseline, demonstrated that participants particularly benefitted from the presentation of a congruent auditory cue when visual targets were localised in the left or right peripheral areas of the visual search field, the same areas for which they showed higher tone localisation accuracies. A larger benefit of congruent tones on target detection performance with increasing target eccentricity is also compatible with the results of previous studies (e.g., [ 3 , 50 ]). Moreover, on a group level, the participants did not significantly benefit from congruent auditory cues when the visual targets were presented in the left or the right central areas of the visual search field, the same areas in which their auditory localisation capability was considerably less accurate.…”

Section: Discussionsupporting

confidence: 91%

Attentional reorienting triggers spatial asymmetries in a search task with cross-modal spatial cueing

et al. 2018

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Cross-modal spatial cueing can affect performance in a visual search task. For example, search performance improves if a visual target and an auditory cue originate from the same spatial location, and it deteriorates if they originate from different locations. Moreover, it has recently been postulated that multisensory settings, i.e., experimental settings, in which critical stimuli are concurrently presented in different sensory modalities (e.g., visual and auditory), may trigger asymmetries in visuospatial attention. Thereby, a facilitation has been observed for visual stimuli presented in the right compared to the left visual space. However, it remains unclear whether auditory cueing of attention differentially affects search performance in the left and the right hemifields in audio-visual search tasks. The present study investigated whether spatial asymmetries would occur in a search task with cross-modal spatial cueing. Participants completed a visual search task that contained no auditory cues (i.e., unimodal visual condition), spatially congruent, spatially incongruent, and spatially non-informative auditory cues. To further assess participants’ accuracy in localising the auditory cues, a unimodal auditory spatial localisation task was also administered. The results demonstrated no left/right asymmetries in the unimodal visual search condition. Both an additional incongruent, as well as a spatially non-informative, auditory cue resulted in lateral asymmetries. Thereby, search times were increased for targets presented in the left compared to the right hemifield. No such spatial asymmetry was observed in the congruent condition. However, participants’ performance in the congruent condition was modulated by their tone localisation accuracy. The findings of the present study demonstrate that spatial asymmetries in multisensory processing depend on the validity of the cross-modal cues, and occur under specific attentional conditions, i.e., when visual attention has to be reoriented towards the left hemifield.

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Section: Discussionsupporting

confidence: 91%

Attentional reorienting triggers spatial asymmetries in a search task with cross-modal spatial cueing

et al. 2018

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“…Each stimulus image had only one search target. The two types of search targets used were a Landolt C Ring with a gap on the left or right, which were similar to those used by McIntire, Havig, Watamaniuk, and Gilkey (2010). The size of the gap in the target ring was 0.22 degrees of visual angle.…”

Section: Stimulus Materialsmentioning

confidence: 99%

Display Movement Velocity and Dynamic Visual Search Performance

Rong

Chan

2014

Hum Ftrs & Erg Mfg Svc

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In practice, many visual search tasks are performed under dynamic conditions. An experiment was conducted here to test visual search strategy adopted by a person in a dynamic visual search and to investigate the effects of display movement velocity on search time and detection accuracy in it. Thirty‐five participants were randomly tested with all 10 angular velocities of 0, 2, 4, 6, 8, 10, 12, 14, 16, and 32 deg/s. The data obtained fitted the random search model well. The results revealed that observers utilized a random search strategy during the dynamic visual search process and that display movement velocity influenced search performance. In comparison with static visual search, an angular velocity faster than 4 deg/s resulted in a significant decrement in search performance. The variations of duration of individual fixations, the probability of target detection in a single fixation and visual lobe area were discussed. The obtained relationships between display movement velocity, search time and detection accuracy can serve as a useful guide for designing a dynamic search task, thus helping to maximize the cost‐effectiveness of dynamic search tasks while minimizing errors and misses during the search process.

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“…Although specific tasks can be done by automated vision system, human vision still plays a vital role in industrial inspection, military target acquisition and video display tasks (Nalanagula et al 2006, Marmaras et al 2008, Koller, et al 2009, Mclntire et al 2010, Kujala and Saariluoma 2011. The visual lobe is an important aspect of human vision and is used to define the limit of peripheral sensitivity for particular target and background characteristics in a single glimpse/fixation without eye scanning movements.…”

Section: Introductionmentioning

confidence: 99%

Effect of display polarity and luminance contrast on visual lobe shape characteristics

2012

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The effect of display polarity and luminance contrast on visual lobe (effective visual field) shape characteristics was studied using three levels of luminance contrast with combinations of positive and negative polarities. The binocular effective visual field for a detection task, with a peripherally presented target (V) embedded in a homogeneous competing background (Xs), was mapped on 24 imaginary axes passing through the fixation point. The results showed that visual lobes mapped using positive polarity were statistically larger in area, rounder and more regular in shape than those for negative polarity. The medium contrast condition lobes were more symmetric and regular than low contrast condition lobes, and lobe area and perimeter increased with increasing luminance contrast ratio. Under the interaction of positive polarity and high luminance contrast, visual lobes were found to be larger, smoother and rounder. The high level of luminance and contrast however resulted in a higher degree of visual discomfort. The results indicated that positive polarity and contrast of medium (26:1) to high (41:1) levels are possible display settings for better visual lobe characteristics and better anticipated search performance.Practitioner Summary: The effect of display polarity and luminance contrast on visual lobe shape characteristics was examined with uniform stimulus materials in this study. The results help to identify the optimum display settings for luminance contrast and display polarity to enhance lobe shape characteristics and hence search performance in industrial inspection tasks.

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

Abstract: 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.

Cited by 21 publications

References 17 publications

Attentional reorienting triggers spatial asymmetries in a search task with cross-modal spatial cueing

Attentional reorienting triggers spatial asymmetries in a search task with cross-modal spatial cueing

Display Movement Velocity and Dynamic Visual Search Performance

Effect of display polarity and luminance contrast on visual lobe shape characteristics

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