In a study comparing cases who are successful in inhibitor control with those who are not so in stop signal task, highest response in intracranial electrodes was obtained in the right inferior frontal gyrus
beta band (optimally approximately 16 Hz) (23).
A recent Spanish functional magnetic resonance brain imaging study demonstrated that schizoaffective disorder exhibits features that more closely resemble those of bipolar disorder than schizophrenia, including the finding that patients in clinical remission show failure of deactivation in the medial frontal gyrus
, compared with healthy controls, Dr.
cingulate, insula, inferior frontal gyrus
[IFG], middle temporal gyrus [MTG], and PMA).
When children had drawn a letter freehand, they exhibited increased activity in three areas of the brain that are activated in adults when they read and write: the left fusiform gyrus, the inferior frontal gyrus
and the posterior parietal cortex.
On both sides of the brain, an area toward the top and front in a region called the middle frontal gyrus
seems to be involved in telling blue from green, Franklin and colleagues found.
Exner hypothesised about what has become known as 'Exner's area', a discrete area within the brain located in the left middle frontal gyrus
, which he believed was dedicated to the function of writing.
In the verb generation task, signal increases were noted in anatomically typical expressive language cortex (Broca's area) in the left posterior inferior frontal gyrus
Brain autopsy revealed asymmetric atrophy of the inferior frontal gyrus
with moderate atrophy on the left (Broca region) and mild atrophy on the right.
In her study, functional imaging showed a strong correlation between fatigue and decreased activation in the left inferior frontal gyrus
The difference in brain activity between subjects at risk for bipolar disorder and controls centered on the inferior frontal gyrus
, a part of the frontal lobe thought to be involved in regulating emotions.
Additional brain research has shown increased gray matter in the left cerebellum and left inferior frontal gyrus
(which controls the right side of the body) in left-handed pianists.
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.