scholarly journals What Can Intraindividual Variability Teach Us About Dual-Target Visual Search?

2018 ◽  
Vol 18 (10) ◽  
pp. 640
Author(s):  
Robert Sall ◽  
Emily Lefebvre ◽  
Shevaun Neupert ◽  
Jing Feng
Keyword(s):  
Visual Search ◽  
Intraindividual Variability ◽  
Dual Target

scholarly journals Accuracy in dual-target visual search is hindered by anticipatory anxiety

2011 ◽  
Vol 11 (11) ◽  
pp. 1339-1339
Author(s):  
M. S. Cain ◽  
J. E. Dunsmoor ◽  
K. S. LaBar ◽  
S. R. Mitroff
Keyword(s):  
Visual Search ◽  
Anticipatory Anxiety ◽  
Dual Target

Does the Dual-Target Cost in Visual Search Increase When Objects Overlap, and Can it be Reduced by the Presence of Depth Information?

2014 ◽  
Author(s):  
Hayward J. Godwin ◽  
Tamaryn Menneer ◽  
Simon Liversedge ◽  
Kyle Cave ◽  
Nick S. Holliman ◽  
...  
Keyword(s):  
Visual Search ◽  
Depth Information ◽  
Target Cost ◽  
Dual Target

High or low target prevalence increases the dual-target cost in visual search.

2010 ◽  
Vol 16 (2) ◽  
pp. 133-144 ◽  
Author(s):  
Tamaryn Menneer ◽  
Nick Donnelly ◽  
Hayward J. Godwin ◽  
Kyle R. Cave
Keyword(s):  
Visual Search ◽  
Target Cost ◽  
Target Prevalence ◽  
Dual Target

scholarly journals Concurrent evaluation of independently cued features during perceptual decisions and saccadic targeting in visual search

2019 ◽  
Vol 82 (3) ◽  
pp. 966-984 ◽  
Author(s):  
Doug J. K. Barrett ◽  
Oliver Zobay
Keyword(s):  
Visual Search ◽  
Signal Detection ◽  
Visual Input ◽  
Limited Resources ◽  
Single Item ◽  
Target Discrimination ◽  
Set Size ◽  
Target Cost ◽  
Single Target ◽  
Dual Target

Abstract Simultaneous search for one of two targets is slower and less accurate than search for a single target. Within the Signal Detection Theoretic (SDT) framework, this can be attributed to the division of resources during the comparison of visual input against independently cued targets. The current study used one or two cues to elicit single- and dual-target searches for orientation targets among similar and dissimilar distractors. In Experiment 1, the accuracy of target discrimination in brief displays was compared at setsizes of 1, 2 and 4. Results revealed a reduction in accuracy that scaled with the product of set size and the number of cued targets. In Experiment 2, the accuracy and latency of observers’ saccadic targeting were compared. Fixations on single-target searches were highly selective towards the target. On dual-target searches, the requirement to detect one of two targets produced a significant reduction in target fixations and equivalent rates of fixations to distractors with opposite orientations. For most observers, the dual-target cost was predicted by an SDT model that simulated increases in decision-noise and the distribution of capacity-limited resources during the comparison of selected input against independently cued targets. For others, search accuracy was consistent with a single-item limit on perceptual decisions and saccadic targeting during search. These findings support a flexible account of the dual-target cost based on different strategies to resolve competition between independently cued targets.

scholarly journals A novel, unbiased approach to evaluating subsequent search misses in dual target visual search

2020 ◽  
Vol 82 (7) ◽  
pp. 3357-3373
Author(s):  
Mark W. Becker ◽  
Kaitlyn Anderson ◽  
Jan W. Brascamp
Keyword(s):  
Visual Search ◽  
Effect Size ◽  
Traditional Method ◽  
Published Data ◽  
Data Sets ◽  
Data Set ◽  
Novel Method ◽  
Subsequent Search Misses ◽  
Dual Target ◽  
Rule Out

Abstract Research in radiology and visual cognition suggest that finding one target during visual search may result in increased misses for a second target, an effect known as subsequent search misses (SSM). Here, we demonstrate that the common method of calculating second-target detection performance is biased and could produce spurious SSM effects. We describe the source of that bias and document factors that influence its magnitude. We use a modification of signal-detection theory to develop a novel, unbiased method of calculating the expected value for dual-target performance under the null hypothesis. We then apply our novel method to two of our data sets that showed modest SSM effects when calculated in the traditional manner. Our correction reduced the effect size to the point that there was no longer a significant SSM effect. We then applied our method to a published data set that had a larger effect size when calculated using the traditional calculation as well as when using an alternative calculation that was recently proposed to account for biases in the traditional method. We find that both the traditional method and the recently proposed alternative substantially overestimate the magnitude of the SSM effect in these data, but a significant SSM effect persisted even with our calculation. We recommend that future SSM studies use our method to ensure accurate effect-size estimates, and suggest that the method be applied to reanalyze published results, particularly those with small effect sizes, to rule out the possibility that they were spurious.

scholarly journals Stimuli similarity in subsequent search misses

2018 ◽  
Vol 11 (3) ◽  
pp. 51-62
Author(s):  
A.A. Lanina ◽  
E.S. Gorbunova
Keyword(s):  
Visual Search ◽  
Target Detection ◽  
Search Task ◽  
Visual Search Task ◽  
Search Time ◽  
Resource Depletion ◽  
Target Condition ◽  
Subsequent Search Misses ◽  
Dual Target

The role of targets categorical similarity in subsequent search misses (SSM) effect, which assumes second target omission after the first target was found in visual search task, was observed. Participant’s task was to search for the targets (even or odd digits) among distracters (odd or ever digits, respectively). On each trial, it could be two, one or no targets. In dual target condition, the targets could be equal digits or different. 22 participants were tested, mean age — 18.73. Accuracy at detecting the second target after the first one was found was compared. Targets similarity had the significant effect on second target detection performance, F (1, 30) = 9.69, p = 0.002, ηp2 = 0.316, and on the search time, F (1, 31) = 28.29, p < 0.000, ηp2 = 0.574. In two dissimilar targets condition the participants missed the second target more often and found it slowly as compared to two similar targets condition. The results are discussed in the context perceptual set and resource depletion theories.

scholarly journals Dual-target cost in visual search for multiple unfamiliar faces.

2017 ◽  
Vol 43 (8) ◽  
pp. 1504-1519 ◽  
Author(s):  
Natalie Mestry ◽  
Tamaryn Menneer ◽  
Kyle R. Cave ◽  
Hayward J. Godwin ◽  
Nick Donnelly
Keyword(s):  
Visual Search ◽  
Target Cost ◽  
Unfamiliar Faces ◽  
Dual Target

scholarly journals Dual-Target Cost in Visual Search for Multiple Unfamiliar Faces

2015 ◽  
Vol 15 (12) ◽  
pp. 58
Author(s):  
Natalie Mestry ◽  
Tamaryn Menneer ◽  
Hayward Godwin ◽  
Kyle Cave ◽  
Nick Donnelly
Keyword(s):  
Visual Search ◽  
Target Cost ◽  
Unfamiliar Faces ◽  
Dual Target
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