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Ventricular-brain ratio (VBR), also known as the ventricle-to-brain ratio or ventricle-brain ratio, is the ratio of total ventricle area to total brain area, which can be calculated with
planimetry Planimetrics is the study of plane measurements, including angles, distances, and areas. History To measure planimetrics a planimeter or dot planimeter is used. This rather advanced analog technology is being taken over by simple image measurement ...
from brain imagining techniques such as
CT scan A computed tomography scan (CT scan; formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed internal images of the body. The personnel that perform CT scans are called radiographers ...
s. (). . It is a common measure of ventricular dilation or cerebral atrophy in patients with traumatic brain injury or hydrocephalus ''ex vacuo''. VBR also tends to increase with age. Generally, a higher VBR means a worse prognosis for recovering from a brain injury. For example, VBR is significantly correlated with performance on the Luria-Nebraska neuropsychological battery. Studies have found people with schizophrenia have larger third ventricles and VBR. Correlational studies have found relationships between ventricle-brain ratio and
binge eating Binge eating is a pattern of disordered eating which consists of episodes of uncontrollable eating. It is a common symptom of eating disorders such as binge eating disorder and bulimia nervosa. During such binges, a person rapidly consumes an exc ...
and inversely with plasma thyroid hormone concentration.


See also

*
Sarnoff A. Mednick Sarnoff Andrei Mednick, (January 27, 1928 – April 10, 2015) was a psychologist who pioneered the prospective high-risk, longitudinal study to investigate the etiology (causes) of psychopathology, or mental disorders. His emphasis was on sc ...
* Ventriculomegaly


References

Behavioral neuroscience {{Psychology stub