Zooming in on the cause of the perceptual load effect in the go/no-go paradigm

Journal of Experimental Psychology. Human Perception and Performance
Zhe Chen, Kyle R Cave

Abstract

Perceptual load theory (Lavie, 2005) claims that attentional capacity that is not used for the current task is allocated to irrelevant distractors. It predicts that if the attentional demands of the current task are high, distractor interference will be low. One particularly powerful demonstration of perceptual load effects on distractor processing relies on a go/no-go cue that is interpreted by either simple feature detection or feature conjunction (Lavie, 1995). However, a possible alternative interpretation of these effects is that the differential degree of distractor processing is caused by how broadly attention is allocated (attentional zoom) rather than to perceptual load. In 4 experiments, we show that when stimuli are arranged to equalize the extent of spatial attention across conditions, distractor interference varies little whether cues are defined by a simple feature or a conjunction, and that the typical perceptual load effect emerges only when attentional zoom can covary with perceptual load. These results suggest that attentional zoom can account for the differential degree of distractor processing traditionally attributed to perceptual load in the go/no-go paradigm. They also provide new insight into how differe...Continue Reading

Citations

Sep 15, 2016·Frontiers in Psychology·Gillian Murphy, Ciara M Greene
May 5, 2021·Psychonomic Bulletin & Review·Zhe Chen, Makayla Szu-Yu Chen

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