Dataset Information

Speech cues to deception in bilinguals.

ABSTRACT: Acoustic cues to deception on a picture naming task were analyzed in three groups of English speakers: monolinguals, bilinguals with English as their first language (English-L1), and bilinguals with English as a second language (English-L2). Results revealed that all participants had longer reaction times when generating falsehoods than when producing truths, and that the effect was more robust for English-L2 bilinguals than for the other two groups. Articulation rate was higher for all groups when producing lies. Mean fundamental frequency and intensity cues were not reliable cues to deception, but there was lower variance in both of these parameters when generating false vs. true labels for all participants. Results suggest that naming latency was the only cue to deception that differed by language background. These findings broadly support the cognitive-load theory of deception, suggesting that a combination of producing deceptive speech and using a second language puts an extra load on the speaker.

SUBMITTER: McDonald M

PROVIDER: S-EPMC7995834 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Speech cues to deception in bilinguals.

McDonald Margarethe M Mormer Elizabeth E Kaushanskaya Margarita M

Applied psycholinguistics 20200724 5

Acoustic cues to deception on a picture naming task were analyzed in three groups of English speakers: monolinguals, bilinguals with English as their first language (English-L1), and bilinguals with English as a second language (English-L2). Results revealed that all participants had longer reaction times when generating falsehoods than when producing truths, and that the effect was more robust for English-L2 bilinguals than for the other two groups. Articulation rate was higher for all groups w ...[more]

PMID: 33776167

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Project description:Previous work on placement expressions (e.g., "she put the cup on the table") has demonstrated cross-linguistic differences in the specificity of placement expressions in the native language (L1), with some languages preferring more general, widely applicable expressions and others preferring more specific expressions based on more fine-grained distinctions. Research on second language (L2) acquisition of an additional spoken language has shown that learning the appropriate L2 placement distinctions poses a challenge for adult learners whose L2 semantic representations can be non-target like and have fuzzy boundaries. Unknown is whether similar effects apply to learners acquiring a L2 in a different sensory-motor modality, e.g., hearing learners of a sign language. Placement verbs in signed languages tend to be highly iconic and to exhibit transparent semantic boundaries. This may facilitate acquisition of signed placement verbs. In addition, little is known about how exposure to different semantic boundaries in placement events in a typologically different language affects lexical semantic meaning in the L1. In this study, we examined placement event descriptions (in American Sign Language (ASL) and English) in hearing L2 learners of ASL who were native speakers of English. L2 signers' ASL placement descriptions looked similar to those of two Deaf, native ASL signer controls, suggesting that the iconicity and transparency of placement distinctions in the visual modality may facilitate L2 acquisition. Nevertheless, L2 signers used a wider range of handshapes in ASL and used them less appropriately, indicating that fuzzy semantic boundaries occur in cross-modal L2 acquisition as well. In addition, while the L2 signers' English verbal expressions were not different from those of a non-signing control group, placement distinctions expressed in co-speech gesture were marginally more ASL-like for L2 signers, suggesting that exposure to different semantic boundaries can cause changes to how placement is conceptualized in the L1 as well.

Dataset Information

Speech cues to deception in bilinguals.

Publications

Speech cues to deception in bilinguals.

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