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Autor(en) / Beteiligte
Titel
Lie-Specific Involvement of Dorsolateral Prefrontal Cortex in Deception
Ist Teil von
  • Cerebral cortex (New York, N.Y. 1991), 2008-02, Vol.18 (2), p.451-455
Ort / Verlag
United States: Oxford University Press
Erscheinungsjahr
2008
Quelle
Oxford Journals 2020 Medicine
Beschreibungen/Notizen
  • Lies are intentional distortions of event knowledge. No experimental data are available on manipulating lying processes. To address this issue, we stimulated the dorsolateral prefrontal cortex (DLPFC) using transcranial direct current stimulation (tDCS). Fifteen healthy volunteers were tested before and after tDCS (anodal, cathodal, and sham). Two types of truthful (truthful selected: TS; truthful unselected: TU) and deceptive (lie selected: LS; lie unselected: LU) responses were evaluated using a computer-controlled task. Reaction times (RTs) and accuracy were collected and used as dependent variables. In the baseline task, the RT was significantly longer for lie responses than for true responses ([mean ± standard error] 1153.4 ± 42.0 ms vs. 1039.6 ± 36.6 ms; F1,14 = 27.25, P = 0.00013). At baseline, RT for selected pictures was significantly shorter than RT for unselected pictures (1051.26 ± 39.0 ms vs. 1141.76 ± 41.1 ms; F1,14 = 34.85, P = 0.00004). Whereas after cathodal and sham stimulation, lie responses remained unchanged (cathodal 5.26 ± 2.7%; sham 5.66 ± 3.6%), after anodal tDCS, RTs significantly increased but did so only for LS responses (16.86 ± 5.0%; P = 0.002). These findings show that manipulation of brain function with DLPFC tDCS specifically influences experimental deception and that distinctive neural mechanisms underlie different types of lies.
Sprache
Englisch
Identifikatoren
ISSN: 1047-3211
eISSN: 1460-2199
DOI: 10.1093/cercor/bhm088
Titel-ID: cdi_proquest_miscellaneous_70241357

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