Flanker task under (perceived) time pressure

Sussman, Rachel F.; Sekuler, Robert; Villalonga, Mercedes B.; Snyder, Hannah R.

doi:10.1167/jov.21.9.2953

Cited by 2 publications

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“…Interestingly, the effect is accompanied by (i) heightened autonomic activation and (ii) self-reports of increased stress. Shrinking the interval between trials without altering other aspects of an experiment, also disrupts performance on Eriksen’s Flanker Task, especially on trials most dependent on selective attention (Sussman et al, 2021). It would be worthwhile to explore these seemingly parallel effects from the Flanker Task and Fish Police!!…”

Section: Discussionmentioning

confidence: 99%

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Costs and benefits of audiovisual interactions

2022

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A strong temporal correlation promotes integration of concurrent sensory signals, either within a single sensory modality, or from different modalities. Although the benefits of such integration are well known, far less attention has been given to possible costs incurred when concurrent sensory signals are uncorrelated. In two experiments, subjects categorized the rate at which a visual object modulated in size, while they also tried to ignore a concurrent task-irrelevant broadband sound. Overall, the experiments showed that (i) losses in accuracy from mismatched auditory and visual rates were larger than gains from matched rates and (ii) mismatched auditory and visual rates slowed responses more than they were sped up when rates matched. Experiment One showed that audiovisual interaction varied with the difference between the visual modulation rate and the modulation rate of a concurrent auditory stimulus. Experiment Two showed that audiovisual interaction depended upon the strength of the task-irrelevant auditory modulation. Although our stimuli involved abstract, low-dimensional stimuli, not speech, the effects we observed parallel key findings on interference in multi-speaker settings.

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Section: Discussionmentioning

confidence: 99%

“…The next trial began two seconds later. We chose that inter-trial interval expecting it would suffice to control time pressure and subject stress (Sun and Sekuler, 2021; Sussman et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

Costs and benefits of audiovisual interactions

2022

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“…The text remained visible for one-second. Then a two-second inter-trial interval elapsed before the onset of the next trial (Sussman et al, 2021). The order in which the three stimulus types (visual modulation rate Increasing, Decreasing, or remaining Constant) were presented was randomized over trials.…”

Section: Phase Amentioning

confidence: 99%

Audiovisual interaction with rate-varying signals

Sekuler

2022

i-Perception

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A task-irrelevant, amplitude-modulating sound influences perception of a size-modulating visual stimulus. To probe the limits of this audiovisual interaction we vary the second temporal derivative of object size and of sound amplitude. In the study’s first phase subjects see a visual stimulus size-modulating with [Formula: see text]0, 0, or <0, and judge each one’s rate as increasing, constant, or decreasing. Visual stimuli are accompanied by a steady, non-modulated auditory stimulus. The novel combination of multiple stimuli and multi-alternative responses allows subjects’ similarity space to be estimated from the stimulus-response confusion matrix. In the study’s second phase, rate-varying visual stimuli are presented in concert with auditory stimuli whose second derivative also varied. Subjects identified each visual stimuli as one of the three types, while trying to ignore the accompanying sound. Unlike some previous results with [Formula: see text] fixed at 0, performance benefits relatively little when visual and auditory stimuli share the same directional change in modulation. However, performance does drop when visual and auditory stimului differ in their directions of rate change. Our task’s computational demands may make it particularly vulnerable to the effects of a dynamic task-irrelevant stimulus.

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Flanker task under (perceived) time pressure

Cited by 2 publications

References 0 publications

Costs and benefits of audiovisual interactions

Costs and benefits of audiovisual interactions

Audiovisual interaction with rate-varying signals

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