High visual salience of alert signals can lead to a counterintuitive increase of reaction times.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
17 04 2024
17 04 2024
Historique:
received:
01
08
2019
accepted:
26
03
2024
medline:
19
4
2024
pubmed:
18
4
2024
entrez:
17
4
2024
Statut:
epublish
Résumé
It is often assumed that rendering an alert signal more salient yields faster responses to this alert. Yet, there might be a trade-off between attracting attention and distracting from task execution. Here we tested this in four behavioral experiments with eye-tracking using an abstract alert-signal paradigm. Participants performed a visual discrimination task (primary task) while occasional alert signals occurred in the visual periphery accompanied by a congruently lateralized tone. Participants had to respond to the alert before proceeding with the primary task. When visual salience (contrast) or auditory salience (tone intensity) of the alert were increased, participants directed their gaze to the alert more quickly. This confirms that more salient alerts attract attention more efficiently. Increasing auditory salience yielded quicker responses for the alert and primary tasks, apparently confirming faster responses altogether. However, increasing visual salience did not yield similar benefits: instead, it increased the time between fixating the alert and responding, as high-salience alerts interfered with alert-task execution. Such task interference by high-salience alert-signals counteracts their more efficient attentional guidance. The design of alert signals must be adapted to a "sweet spot" that optimizes this stimulus-dependent trade-off between maximally rapid attentional orienting and minimal task interference.
Identifiants
pubmed: 38632303
doi: 10.1038/s41598-024-58953-4
pii: 10.1038/s41598-024-58953-4
pmc: PMC11024089
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
8858Subventions
Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : Project-ID 416228727-SFB 1410 TP C01
Informations de copyright
© 2024. The Author(s).
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