gyrus

(redirected from Inferior frontal gyrus)
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Related to Inferior frontal gyrus: Broca's area, Middle frontal gyrus

gyrus

[′jī·rəs]
(anatomy)
One of the convolutions (ridges) on the surface of the cerebrum.
References in periodicals archive ?
Eight significant clusters were found with increased brain activation from pre- to post-training, compared with non-CRT patients [Table 2] and [Figure 2], (1) the left inferior frontal gyrus (1120 mm [sup]3, BA9); (2) the left medial frontal gyrus (512 mm [sup]3, BA32); (3) the right middle frontal gyrus (464 mm [sup]3, BA6); (4) the left precentral gyrus (416 mm [sup]3, BA6); (5) the right postcentral gyrus (416 mm [sup]3, BA2); (6) the left medial frontal gyrus (352 mm [sup]3, BA6); (7) the right sub-gyral (296 mm [sup]3, BA6); and (8) the left sub-gyral (216 mm [sup]3, BA6).
Role of the left inferior frontal gyrus in covert word retrieval: Neural correlates of switching during verbal fluency.
Further, a study using near-infrared spectroscopy (NIRS) found increased concentrations of oxygenated hemoglobin (oxy-Hb) in regions in the inferior frontal gyrus (BA45), precentral gyrus (BA6, BA44), and superior temporal sulcus (BA22) when participants were handed an object in a way that was easy to receive, compared to when they were handed it in a way that was difficult to receive (Shibata, Suzuki, & Gyoba, 2007).
The score differences in the chemotherapy group "were mainly due to lower pretreatment activation in an area of the prefrontal cortex supporting working memory the anatomical left inferior frontal gyrus, at the higher task demand," Dr.
Damage to the inferior frontal gyrus (IFG) can produce difficulties in emotion recognition.
The independent samples t-test revealed that recent users had greater SWM response than abstinent users in the following regions: a large cluster spanning medial bilateral cingulate, medial frontal gyrus, and left superior and middle frontal gyri (Brodmann's area [BA] 8); medial bilateral superior frontal gyrus (BA 6/8); left insula and precentral gyrus (BA 13); and right insula and inferior frontal gyrus (BA 13; see Table 3 and Figure 3).
Along with the TSD, impaired response inhibition may result from impaired function of the right ventral cortex, typically with the inferior frontal gyrus (Chuah et al.
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.
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.
In both the controls and the subjects, a humorous cartoon increased activation of the thalamus, amygdala, VTA, nucleus accumbens, hypothalamus and the right inferior frontal gyrus (IFG, a convolution on the cortex of the lower frontal lobe that may play a role in inhibiting one's motor responses to humor).
First, all three types of statements stimulated the classical language areas of the LH: moving roughly from front to back, the left inferior frontal gyrus, the left inferior temporal gyrus, and the left inferior extrastriate region.
For example, when a girl skips rope, her mirror neurons fire in the inferior frontal gyrus of the brain.

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