Graded Prioritisation of Targets in Search: Reward Diminishes the Low Prevalence Effect

Autor/inn/en	Hadjipanayi, Veronica; Ludwig, Casimir J. H.; Kent, Christopher
Titel	Graded Prioritisation of Targets in Search: Reward Diminishes the Low Prevalence Effect
Quelle	In: Cognitive Research: Principles and Implications, 8 (2023), Artikel 52 (23 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Hadjipanayi, Veronica)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
DOI	10.1186/s41235-023-00507-9
Schlagwörter	Search Strategies; Observation; Visual Discrimination; Visual Perception; Rewards; Incidence; Grades (Scholastic); Interaction + Suchen Sie Ihr Suchwort? Suchstrategie; Beobachtung; Visuelle Wahrnehmung; Reward; Belohnung; Vorkommen; Notenspiegel; Interaktion
Abstract	In many real-life contexts, observers are required to search for targets that are rarely present (e.g. tumours in X-rays; dangerous items in airport security screenings). Despite the rarity of these items, they are of enormous importance for the health and safety of the public, yet they are easily missed during visual search. This is referred to as the prevalence effect. In the current series of experiments, we investigate whether unequal reward can modulate the prevalence effect, in a "multiple" target search task. Having first established the impact of prevalence (Experiment 1) and reward (Experiment 2) on how efficiently participants can find one of several targets in the current paradigm, we then combined the two forms of priority to investigate their interaction. An "unequal" reward distribution (where lower prevalence items are more rewarded; Experiment 3) was found to diminish the effect of prevalence, compared to an equal reward distribution (Experiment 4) as indicated by faster response times and fewer misses. These findings suggest that when combined with an unequal reward distribution, the low prevalence effect can be diminished. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01