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Listeners’ perceptions of the certainty and honesty of a speaker are associated with a common prosodic signature
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Listeners’ perceptions of the certainty and honesty of a speaker are associated with a common prosodic signature
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Journal Article
Listeners’ perceptions of the certainty and honesty of a speaker are associated with a common prosodic signature
2021
Overview
The success of human cooperation crucially depends on mechanisms enabling individuals to detect unreliability in their conspecifics. Yet, how such epistemic vigilance is achieved from naturalistic sensory inputs remains unclear. Here we show that listeners’ perceptions of the certainty and honesty of other speakers from their speech are based on a common prosodic signature. Using a data-driven method, we separately decode the prosodic features driving listeners’ perceptions of a speaker’s certainty and honesty across pitch, duration and loudness. We find that these two kinds of judgments rely on a common prosodic signature that is perceived independently from individuals’ conceptual knowledge and native language. Finally, we show that listeners extract this prosodic signature automatically, and that this impacts the way they memorize spoken words. These findings shed light on a unique auditory adaptation that enables human listeners to quickly detect and react to unreliability during linguistic interactions.
It remains unclear whether and how listeners can infer speakers’ reliability from the sound of their voice. Here, the authors show that listeners from several languages rely on a common prosodic signature to infer whether speakers are lying or doubting.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ Female
/ Honesty
/ Humanities and Social Sciences
/ Humans
/ Judgment
/ Language
/ Loudness
/ Lying
/ Male
/ Pitch
/ Science
/ Speech
/ Speech Perception - physiology
/ Speeches
