Figure 1.
Behavioral results. Mean accuracy rates (A) and reaction times (B) of men and women for deceptive and truthful responses.
Error bars represent standard error of the mean. No between-gender effect reached significance.
Figure 2.
Differential reaction times (RT) of men and women for general and personal information.
Error bars represent standard error of the mean. In men, differential RT for personal information were significantly longer than for general information, whereas in women no such differences were observed.
Figure 3.
Brain regions showing increased activity during lying compared to truth-telling.
The activations are superimposed on a Colin27 template image in the MNI space. The colored bar represents t-values; L – left side; R- right side.
Table 1.
Brain regions with significant BOLD activity for all subjects in the ‘lie vs. truth’ direct contrast for both general and personal information.
Table 2.
Brain regions with significant BOLD activity for all subjects in the ‘lie vs. truth’ direct contrast separately for general and personal information.
Figure 4.
Brain activation map contrasting personal “lie” versus general “lie”.
The activations are superimposed on a Colin27 template image in the MNI space. The colored bar represents t-values; L – left side; R- right side.
Table 3.
Brain regions with significant BOLD activity for all subjects in the personal “lie” vs. general “lie” contrast.
Table 4.
Brain regions with significant BOLD activity for the ‘lie vs. truth’ direct contrast for both general and personal information separately in men and women groups.
Table 5.
Brain regions with significant BOLD activity for men and women separately in the ‘lie vs. truth’ direct contrasts for general information.
Figure 5.
Differences between lying and truth-telling in men and women in the left middle frontal gyrus area.
The bar chart represents the mean contrast value of the cluster. The activation is superimposed on a Colin27 template image in the MNI space. The colored bar represents t-values; L – left side; R- right side.
Table 6.
Brain regions with significant BOLD activity for men and women separately in the ‘lie vs. truth’ direct contrasts for personal information.
Figure 6.
Experimental design of the study.
The instruction was presented above the fixation point and, after 2 seconds, was followed by a question that appeared below the fixation point for 3 seconds. The inter-stimulus interval was varied from 8–12 s (for details see text).