gyrus

(redirected from Middle frontal gyrus)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to Middle frontal gyrus: precentral gyrus, Middle temporal gyrus

gyrus

[′jī·rəs]
(anatomy)
One of the convolutions (ridges) on the surface of the cerebrum.
References in periodicals archive ?
Homogeneous subsets isolated the power differences between the right middle frontal gyrus and the right occipital polar region as the major sources of variance (p<0.
With the help of functional magnetic resonance imaging (fMRI) and positron emission tomography (PET), researchers indicated that cognitive training could improve participants' performance by increasing activation in the middle frontal gyrus, the superior and inferior parietal cortices.
Some studies indicated reduced grey matter in the prefrontal cortex, left orbitofrontal gyrus, left superior frontal gyrus, and bilateral medial, and middle frontal gyrus of chronic schizophrenia [60-64].
In the case of colors, the middle frontal gyrus is notable for what it's not.
Also, oxy-Hb concentrations in the middle frontal gyrus were high when the subjective ratings of the "appreciation of the product" subgroup and the "affective elements" subgroup were high.
Brain sections recommended to establish a diagnosis in most cases of dementia include medulla, pons, midbrain, cerebellar vermis, cerebellar hemisphere including the dentate, hippocampus and adjacent parahippocampal gyrus, basal ganglia (caudate, putamen, and globus pallidus), thalamus, middle frontal gyrus, inferior parietal lobule, occipital lobe, superior and middle temporal gyri, cingulate gyrus, spinal cord if available, and any detectable macroscopic lesions.
In the second examination, tennis imagery, compared with SN, was characterized by a larger activity in the left premotor cortex, whereas SN elicited larger activation in the left middle frontal gyrus and the right hippocampus.
Areas of activation were observed bilaterally in the middle temporal gyrus (BA21) and the inferior frontal gyrus (BA47), the medial frontal gyrus (BA6) of the left hemisphere, the middle frontal gyrus (BA46) and the precentral gyrus (BA6)of the right hemisphere.
The tests showed that reading difficulties in the children, whose average age was 11, were linked to functional problems in a brain region called the left middle frontal gyrus.

Full browser ?