orbital gyrus


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orbital gyrus

Any of the gyri forming the inferior, concave surface of the frontal lobe, which lies along the orbital surface of the frontal bone.
See also: gyrus
References in periodicals archive ?
Here the current study extended these findings by demonstrating a particular region of the prefrontal cortex, the right middle orbital gyrus, as strongly linked to both attentional control and intelligence, perhaps providing important neurobiological substrata for attention-control capacity necessary for instrumental learning [38].
In summary, the current findings pointed to a specific and strong role of attention-control capacity in intelligence, which may be mediated in large part by OFC structures, particularly the middle orbital gyrus. However, the current study is limited by its correlational design and its region-of-interest focus on OFC structures, which did not allow for examination of intelligence in relation to whole-brain network properties.
Baxter and his colleagues propose that dominant-hemisphere activity in the orbital gyrus may increase beyond the capacity of the caudate nuclei to integrate the information relayed its way.
In these scans, it increases markedly in the left-hemisphere orbital gyrus and caudate nuclei of an obsessive-compulsive whose symptoms improved with drug treatment.