gyrus

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gyrus

[′jī·rəs]
(anatomy)
One of the convolutions (ridges) on the surface of the cerebrum.
References in periodicals archive ?
Speaking: Areas of activation were observed bilaterally in the superior frontal gyrus (BA6), and the insula (BA13) and the inferior parietal lobule (BA47), the superior parietal lobule (BA7), the superior temporal gyrus (BA22) and the postcentral gyrus (BA43) of the left hemisphere, the superior temporal gyrus (BA 42, 38) and the precentral gyrus (BA6) of the right hemisphere.
As a result, other brain areas may be pressed into service instead--areas such as the inferior frontal gyrus, which is usually associated with spoken language.
Furthermore, the diabetes group had lower fMRI activation of the left inferior frontal gyrus (Brodmann area 13) in the 1-back versus 0-back (working memory) condition, and had less activation of the left middle frontal gyrus and the superior frontal gyrus in the 2-back versus 0-back comparison, they added.
Groups of neurons in a part of the brain called the inferior frontal gyrus responded to doing the actions and to watching the same actions, researchers led by James Kilner of the Wellcome Trust Center for Neuroimaging at University College London reported.
Broca suspected an abscess and believed that the process began in the posterior aspect of the third left frontal gyrus.
Researchers have also demonstrated a lower correlation of activation in dyslexics between left angular gyms, fusiform gyms, and inferior frontal gyrus (Horwitz, Rumsey, & Donohue, 1998).
One circuit included the medial aspect of the left superior frontal gyrus and the dorsolateral region of the left superior frontal gyrus.
Next, they were given "resting state" MRIs which made it possible to analyze the strength of connections within the mirror neuron system in both the left and right hemispheres of their brains; specifically the inferior frontal gyrus, supramarginal gyrus and angular gyrus.
Measurements of the right hemisphere involved only the temporal pole, en-torhinal cortex, and inferior frontal gyrus.
The brain weighed 1600 g and showed a cortical mass lesion in the left superior frontal gyrus, 4 cm behind the frontal pole.
The most prominent such sites were the inferior frontal gyrus, especially during nonsense word rhyming, and Broca's area, a crucial location for speech processing.
03), The left caudal middle frontal gyrus, and the right paracentral gyrus (P less than .