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Lies in the lexicon : a corpus-based exploration of lexicon in truthful and deceitful narrative accounts

Johansson, Victoria LU ; Gullberg, Kajsa LU orcid and Johansson, Roger LU orcid (2025) In Linguistics Vanguard
Abstract
Corpus linguistic studies have shown that lexicon varies according to linguistic register, and cognitive studies have demonstrated that lexical aspects play a significant role in determining the veracity of people’s accounts. Both lines of research underpin the present study, where the aim is to explore how overall lexical properties (lexical density and lexical diversity, and noun, verb, and adjective density) are related to the veracity of narratives. We make use of a corpus of 576 spoken and written narratives, especially collected with the purpose of investigating linguistic properties in truthful and deceitful accounts. Data were collected in an experiment involving 36 participants who viewed four elicitation films depicting minor... (More)
Corpus linguistic studies have shown that lexicon varies according to linguistic register, and cognitive studies have demonstrated that lexical aspects play a significant role in determining the veracity of people’s accounts. Both lines of research underpin the present study, where the aim is to explore how overall lexical properties (lexical density and lexical diversity, and noun, verb, and adjective density) are related to the veracity of narratives. We make use of a corpus of 576 spoken and written narratives, especially collected with the purpose of investigating linguistic properties in truthful and deceitful accounts. Data were collected in an experiment involving 36 participants who viewed four elicitation films depicting minor misdemeanors, and subsequently recounted the events in both written and spoken formats, resulting in four narrative accounts (two truthful and two deceitful, in which they were asked to alter a critical event regarding “who did it”). The results reveal some significant differences in how verb, noun, and adjective density relate to veracity, but the results are inconclusive. A cautious interpretation is that narrators make use of different lexical strategies depending on veracity but that elicitation material may strongly influence the effects, stressing the difficulties in characterizing deceptive written texts. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
verbal lie detection, corpus linguistics, lexical density, lexical diversity, fake news
in
Linguistics Vanguard
pages
19 pages
publisher
De Gruyter
ISSN
2199-174X
DOI
10.1515/lingvan-2024-0177
project
Spoken and written processes in invented and experienced narratives
Based on a true story? How to differentiate between invented and self-experienced narratives through comparing linguistic processes in speaking and writing.
language
English
LU publication?
yes
id
9398823a-b8b3-4768-a01f-a9facda8b359
date added to LUP
2025-11-06 09:02:00
date last changed
2025-11-06 12:20:24
@article{9398823a-b8b3-4768-a01f-a9facda8b359,
  abstract     = {{Corpus linguistic studies have shown that lexicon varies according to linguistic register, and cognitive studies have demonstrated that lexical aspects play a significant role in determining the veracity of people’s accounts. Both lines of research underpin the present study, where the aim is to explore how overall lexical properties (lexical density and lexical diversity, and noun, verb, and adjective density) are related to the veracity of narratives. We make use of a corpus of 576 spoken and written narratives, especially collected with the purpose of investigating linguistic properties in truthful and deceitful accounts. Data were collected in an experiment involving 36 participants who viewed four elicitation films depicting minor misdemeanors, and subsequently recounted the events in both written and spoken formats, resulting in four narrative accounts (two truthful and two deceitful, in which they were asked to alter a critical event regarding “who did it”). The results reveal some significant differences in how verb, noun, and adjective density relate to veracity, but the results are inconclusive. A cautious interpretation is that narrators make use of different lexical strategies depending on veracity but that elicitation material may strongly influence the effects, stressing the difficulties in characterizing deceptive written texts.}},
  author       = {{Johansson, Victoria and Gullberg, Kajsa and Johansson, Roger}},
  issn         = {{2199-174X}},
  keywords     = {{verbal lie detection; corpus linguistics; lexical density; lexical diversity; fake news}},
  language     = {{eng}},
  publisher    = {{De Gruyter}},
  series       = {{Linguistics Vanguard}},
  title        = {{Lies in the lexicon : a corpus-based exploration of lexicon in truthful and deceitful narrative accounts}},
  url          = {{http://dx.doi.org/10.1515/lingvan-2024-0177}},
  doi          = {{10.1515/lingvan-2024-0177}},
  year         = {{2025}},
}