middle frontal gyrus

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Related to middle frontal gyrus: precentral gyrus, Middle temporal gyrus

mid·dle fron·tal gy·rus

a convolution on the convexity of each frontal lobe of the cerebrum running in an anteroposterior direction between the superior and inferior frontal sulci.
Farlex Partner Medical Dictionary © Farlex 2012

middle frontal gyrus

The middle of the three major longitudinal gyri of the lateral surface of the frontal lobe of each cerebral hemisphere; it is part of the prefrontal cortex.
See also: gyrus
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Caption: Figure 4: TG2 mRNA and protein levels are higher in the middle frontal gyrus of ASD subjects.
Five clusters were found with increased brain activation in CRT patients from pre- to post-training, compared with non-CRT patients [Table 3] and [Figure 3],[sup][15],[24],[25],[26],[27],[31] (1) the right middle frontal gyrus (568 mm [sup]3, BA6); (2) the right postcentral gyrus (552 mm [sup]3, BA2); (3) the left medial frontal gyrus (440 mm [sup]3, BA6); (4) the right inferior parietal lobule (280 mm [sup]3, BA40); (5) the left middle frontal gyrus (208 mm [sup]3, BA9).{Table 3}{Figure 3}
Compared with the healthy subjects, we found that the ReHo value in the depression group was higher in the right middle frontal gyrus, triangular part of the right inferior frontal gyrus, and orbital part of the right inferior frontal gyrus; the frontal lobe region showed the most intense activation (the highest peak area was located in the orbital part of the inferior frontal gyrus, t = 6.45).
Compared with the healthy control subjects, the patients with PD showed increased fALFF values in the left inferior temporal gyrus (ITG), right IPL and right middle frontal gyrus (MFG) ( P < 0.01, after correction with AlphaSim) [Table 3], [Figure 1] and [Figure 2].
In the DLB group, the prefrontal cortex showed enhanced brain activity in the following areas: the bilateral middle frontal gyrus (MFG.R and MFG.L), bilateral inferior frontal gyrus, pars triangularis (IFGtriang.R and IFGtriang.L), bilateral inferior frontal gyrus, and pars orbitalis (ORBinf.R and ORBinf.L).
Furthermore, lateralized cortical decreases were observed in the right middle frontal gyrus, inferior frontal gyrus, precentral gyrus, superior temporal gyrus, thalamus, and putamen and in the left cuneus, precuneus, cingulate gyrus, fusiform gyrus, middle temporal gyrus, and medial frontal gyrus.
BA46 is known as anterior middle frontal gyrus. Actually, B A46 roughly corresponds with the dorsolateral prefrontal cortex.
The results demonstrate that a reduction of node degree was distributed in the left postcentral gyrus (PoCG.L), the right hippocampus (HIP.R), the left middle temporal gyrus (MTG.L), the right middle occipital gyrus (MOG.R), the right orbital part of middle frontal gyrus (ORBsupmed.R), the right amygdala (AMYG.R), the left lingual gyrus (LING.L), the medial part of right superior frontal gyrus (SFGmed.R), and the medial part of left superior frontal gyrus (SFGmed.L).
DAN is thought to mediate goal-directed top-down processing [25] and primarily involves the middle and superior occipital gyrus, parietal gyrus, inferior, superior parietal gyrus, middle frontal gyrus, and superior frontal gyrus.
Brain imaging studies of 48 women in the early years of menopause showed that those with subjective cognitive complaints had significantly greater volumes in certain regions of the brain than did noncomplainers, including the right posterior cingulate gyrus (P less than .04), the right transverse temporal cortex (P less than .03), The left caudal middle frontal gyrus, and the right paracentral gyrus (P less than .05 for both), said Lilia Zurkovsky Ph.D., a postdoctoral fellow from the Center for Cognitive Medicine at Vanderbilt University Medical Center in Nashville, Term.
When comparing regions that could better distinguish between physically trained and untrained sequences after training compared to before training, the left angular gyrus (IPC) and right middle frontal gyrus (close to IFS) were the two only regions that could discriminate accurately (i.e., above chance) after training between physically trained and untrained sequences (Figure 5(a) and Table 3(a)).
Component 15 from the SBM analysis showed differences in the brains of schizophrenic and healthy volunteers in the middle frontal gyrus, precentral gyrus, subgyrus, postcentral gyrus, superior frontal gyrus, medial frontal gyrus, cingulate gyrus, and superior temporal gyrus.

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