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. 2024 Jul 23;14(8):627.
doi: 10.3390/bs14080627.

Neural Signals Associated with Orienting Response and Arousal Inhibition in Concealed Information Test

Wang Feng  1   2   3 , Fei Wang  1   2   3 , Hongyi Zhu  1   2   3 , Chen Jiang  1   2   3 , Liyang Sai  1   2   3
Affiliations

Neural Signals Associated with Orienting Response and Arousal Inhibition in Concealed Information Test

Wang Feng et al. Behav Sci (Basel). .

Abstract

Recent theory suggests that both the orienting response and arousal inhibition play roles in the effect of the concealed information test (CIT). However, the neural signatures associated with these two processes remain unclear. To address this issue, participants were motivated to either conceal or reveal crime-related stimulus during CIT while EEG was recorded. By using a temporal principal component analysis, we found that crime-related stimuli produced a larger early P3 than crime-irrelevant stimuli in both the conceal condition and reveal condition. This result suggests that this early P3 reflects an orienting response. In addition, we found that crime-related stimuli elicited a larger frontal negative slow wave than crime-irrelevant stimuli in the conceal condition but not the reveal condition, which suggests that the frontal negative slow wave reflects the arousal inhibition process. These results provide crucial evidence for understanding the neural basis underlying CIT.

Keywords: ERPs; arousal inhibition; concealed information test; orienting response.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
The task structure of the concealed information test.
Figure 2
Figure 2
Grand-average ERP waveforms evoked by the probe and irrelevant as measured at the Pz electrode.
Figure 3
Figure 3
Grand-average ERP waveforms evoked by the probe and irrelevant as measured at the Fz electrode.
Figure 4
Figure 4
Virtual ERP components extracted from the temporal PCA (combining conceal and reveal conditions).
Figure 5
Figure 5
Scalp topographies of temporal principal component analyzed ERPs locked to probe or irrelevant.
Figure 6
Figure 6
The scatter plots: the ERP amplitude differences in 1850 ms at the frontal region vs. inhibition score.
See this image and copyright information in PMC

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