What does the dot-probe task measure? A reverse correlation analysis of electrocortical activity

Psychophysiology
Nina N ThigpenAndreas Keil

Abstract

The dot-probe task is considered a gold standard for assessing the intrinsic attentive selection of one of two lateralized visual cues, measured by the response time to a subsequent, lateralized response probe. However, this task has recently been associated with poor reliability and conflicting results. To resolve these discrepancies, we tested the underlying assumption of the dot-probe task-that fast probe responses index heightened cue selection-using an electrophysiological measure of selective attention. Specifically, we used a reverse correlation approach in combination with frequency-tagged steady-state visual potentials (ssVEPs). Twenty-one participants completed a modified dot-probe task in which each member of a pair of lateralized face cues, varying in emotional expression (angry-angry, neutral-angry, neutral-neutral), flickered at one of two frequencies (15 or 20 Hz), to evoke ssVEPs. One cue was then replaced by a response probe, and participants indicated the probe orientation (0° or 90°). We analyzed the ssVEP evoked by the cues as a function of response speed to the subsequent probe (i.e., a reverse correlation analysis). Electrophysiological measures of cue processing varied with probe hemifield location: Faste...Continue Reading

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Citations

Nov 30, 2019·The British Journal of Developmental Psychology·Marina KammermeierMarkus Paulus
May 20, 2020·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Matthias J Wieser, Andreas Keil
May 25, 2021·Frontiers in Psychology·Nü LongJia Chen
Dec 3, 2021·Cognition & Emotion·Angela MarottaMirta Fiorio

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