gyrus

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Related to gyri: neuron, basal ganglia

gyrus

[′jī·rəs]
(anatomy)
One of the convolutions (ridges) on the surface of the cerebrum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Furthermore, says Aguirre, a 1987 study of four brain-damaged individuals demonstrated that the parahippocampal gyri are crucial to the storage and recall of spatial information.
The VMHC was significantly different in the visual region (inferior occipital and fusiform gyri) and the sensorimotor region (paracentral lobule) across the three groups ( P < 0.05, FDR corrected).
Histologic features of the incidentally found lesion of the right side of the frontal lobe demonstrated that the lesion expanded the gyri, blurred the grey-white mater junction, and distorted the normal cortical cytoarchitecture, indicating that the lesion was infiltrative.
After ovulation, rising levels of progesterone cause the gyri to shrink back.
Note the partially inverterted cingulate gyrus anteriorly while posteriorly the vertically oriented gyri and sulci radiate from the CSF space.
Animal studies, notes Baxter, indicatethat the orbital gyri are involved in directing attention toward specific objects.
For the right hemisphere stroke group, during right (corresponding to nonparetic) hand action observation, activity was found in the left premotor cortex, bilateral precentral gyri, bilateral superior parietal lobules, and bilateral occipital cortices, among other areas (Figure 1; Supplementary Table 1).
The increase in vasogenic oedema results in brain swelling and well appreciated in cortical regions as gyri swelling/sulci effacement.
demonstrated that one female patient who restored her vision after keratoprosthesis exihibited enhanced responses in the fusiform, lingual and calcarine gyri, but a decreased response in the visiual cortex that engaged the dorsal pathway especially the middle temporal complex (MT+).
It is characterized macroscopically by an excessive number of small gyri and microscopically by abnormal lamination of the involved cortex [2].