Worth a quick look? Initial scene previews can guide eye movements as a function of domain-specific expertise but can also have unforeseen costs

Journal of Experimental Psychology. Human Perception and Performance
Damien Litchfield, Tim Donovan

Abstract

Rapid scene recognition is a global visual process we can all exploit to guide search. This ability is thought to underpin expertise in medical image perception yet there is no direct evidence that isolates the expertise-specific contribution of processing scene previews on subsequent eye movement performance. We used the flash-preview moving window paradigm (Castelhano & Henderson, 2007) to investigate this issue. Expert radiologists and novice observers underwent 2 experiments whereby participants viewed a 250-ms scene preview or a mask before searching for a target. Observers looked for everyday objects from real-world scenes (Experiment 1), and searched for lung nodules from medical images (Experiment 2). Both expertise groups exploited the brief preview of the upcoming scene to more efficiently guide windowed search in Experiment 1, but there was only a weak effect of domain-specific expertise in Experiment 2, with experts showing small improvements in search metrics with scene previews. Expert diagnostic performance was better than novices in all conditions but was not contingent on seeing the scene preview, and scene preview actually impaired novice diagnostic performance. Experiment 3 required novice and experienced obs...Continue Reading

Citations

Dec 14, 2017·Frontiers in Psychology·Tim DonovanTrevor J Crawford
Jul 10, 2019·Cognitive Research: Principles and Implications·Lauren H Williams, Trafton Drew
Oct 17, 2017·Frontiers in Psychology·Heather Sheridan, Eyal M Reingold
Jul 12, 2019·Frontiers in Human Neuroscience·Stephen WaiteSusana Martinez-Conde
Aug 29, 2019·Frontiers in Human Neuroscience·Stephen WaiteSusana Martinez-Conde
Nov 19, 2019·Vision·Carrick C Williams, Monica S Castelhano
Apr 27, 2021·Neural Networks : the Official Journal of the International Neural Network Society·Ryan BurtJose C Principe

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