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Titre
Both High Cognitive Load and Transcranial Direct Current Stimulation Over the Right Inferior Frontal Cortex Make Truth and Lie Responses More Similar
Autor(es)
Sujet
Transcranial direct current stimulation
Deception
Cognitive load
Inhibitory control
Inferior frontal cortex
Clasificación UNESCO
6106 Psicología Experimental
3205.07 Neurología
6104.01 Procesos Cognitivos
6106.10 Psicología Fisiológica
Fecha de publicación
2020-05-19
Citación
Sánchez, N., Masip, J., & Gómez-Ariza, C. J. (2020). Both high cognitive load and transcranial direct current stimulation over the right inferior frontal cortex make truth and lie responses more similar. Frontiers in Psychology, 11, 776. doi:10.3389/fpsyg.2020.00776
Resumen
[EN]Deception scholars have argued that increasing the liar’s cognitive system artificially
can produce deception cues. However, if too much load is imposed, the truth tellers’
performance can also be impaired. To address this issue, we designed a veracity task
that incorporated a secondary task to increase cognitive load gradually. Also, because
deception has been associated with activity in the inferior frontal cortex (IFC), we
examined the influence of transcranial direct current stimulation (tDCS) of the IFC on
performance. During stimulation, participants truthfully or deceptively indicated whether
each of a number of statements shown on screen was true or not. Higher load
decreased recall but not general compliance or response times (RTs). Truthful trials
yielded higher compliance rates and faster RTs than deceptive trials except for the
highest load level. Anodal right stimulation decreased compliance in truthful trials when
participants were not overloaded. Truth telling was more vulnerable to cognitive load
and tDCS than lying.
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