In comparison to the HCs, the SAD patients had decreased FA values in the white matter of the left insula, left inferior frontal gyrus, left middle temporal gyrus, and left inferior parietal gyrus.
It is particularly interesting that all of significantly decreased FA regions occurred in the left hemisphere including the left insula cortex, left inferior frontal gyrus, left inferior parietal gyrus, and left middle temporal gyrus in the SAD patient group.
The frequency of right superior, left superior, and left inferior pulmonary veins involvement is similar.
Further peaks were observed in the left inferior angular gyrus, left inferior frontal gyrus and bilateral medial frontal lobe.
Further voxels showing a significant negative correlation with Frequency for action words were found in the left inferior parietal lobe, left inferior and right medial frontal gyrus.
In contrast to the left inferior frontal gyrus-left posterior middle temporal gyrus network, co-activation of the left inferior frontal gyrus and left inferior parietal lobule cluster does not seem to be required for core syntactic functions.
In the controls, both the left inferior frontal gyrus and left inferior parietal lobule, angular gyrus and supramarginal gyrus were activated by the presence of a syntactic ambiguity.
Interestingly, Frequency of action words also modulated brain areas in the left inferior parietal lobule and left inferior frontal cortex, which were associated with complex actions or action recognition in previous studies (Jeannerod et al., 1995; Rizzolatti & Luppino, 2001).
Based on previous studies, it was hypothesized that one or both of the most commonly activated regions, the left inferior frontal gyrus and left inferior parietal lobe, will prove to be essential for inner speech.
The objects stimulus contrast demonstrated activation clusters in controls overlying the left inferior temporal gyrus, left fusiform gyrus, left inferior and middle occipital gyrus.
> -wrap-foot> Deceptive responses elicited stronger fMRI activation at the left inferior, middle, and superior frontal gyrus; left inferior parietal gyrus, and right inferior frontal gyrus (see Fig. 3 A).
