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Caption: Figure 3: Regression of group asymmetry indices for MCI nonconverters and converters in five selected ROIs, including the banks of the superior temporal sulcus (cyan), caudal middle frontal gyrus (red), inferior parietal lobule (blue), pars triangularis (green), entorhinal cortex (yellow), and parahippocampal gyrus (pink).
However, to the best of our knowledge none of these studies investigated the integrity of whole components, including the hippocampus, amygdala, parahippocampal gyrus, cingulum, and fornix together with diffusion tensor imaging (DTI).
Many brain regions were activated, including somatosensory cortex (such as the superior parietal lobule and postcentral gyrus), limbic-paralimbic system (such as the calcarine gyrus, precuneus, cingulate cortex, and parahippocampal gyrus), visual-related cortex (such as the fusiform and occipital gyri), pain regions (such as basal ganglia), and the cerebellum.
Five partial ROI contrasts were performed using explicit masks over the areas related to spatial cognition and semantic executive control: parahippocampal gyrus, entering 900 voxels into the analysis, hippocampus, entering 93 voxels; posterior cingulate cortex (PCC), entering 141 voxels; lingual gyrus, entering 196 voxels, and left PFMG, entering 229 voxels.
In a separate group of healthy patients, imagining a tennis game activated a part of the brain called the pre-motor cortex and imagining walking the streets or through a house activated another structure called the parahippocampal gyrus. The five brain-injured patients who responded to the test had activity in one or both areas when asked questions, the researchers said.
Right smack in the right parahippocampal gyrus is where we find the seat of the exceptional parent's most relied upon tool.
Well, bet you didn't know that the part of the brain responsible for detecting sarcasm is the right parahippocampal gyrus, did you?
When asked to imagine walking through the rooms of her house, activation was seen in the parahippocampal gyrus, posterior parietal cortex, and the lateral premotor cortex.
"This time her parahippocampal gyrus, which generates spatial maps, became active, again just as in healthy volunteers."
The medial temporal structural assessment could be done either qualitatively, on the hippocampus, choroidal fissure, or temporal horn, or quantitatively on the hippocampus, entorhinal cortex, or parahippocampal gyrus. "Studies suggest good sensitivity and specificity for AD and normal patients, and good discrimination of those who will progress from MCI."
In contrast, the women's brains showed greater activity in the left parahippocampal gyrus, including the amygdala an area of the brain associated with stimuli sign alling threat.
A neocortical region adjacent to the hippocampus, the parahippocampal gyrus, connects the hippocampus to the sensory processing regions.