TERM DATABASE

Angular Gyrus

Last update: September 13, 2022
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By BrainMatters

Summary

This area is involved in the functions of language, arithmetic and cognition. Some researchers think it is also involved in understanding and representing metaphors. Damage to the angular gyrus can cause Gerstmann syndrome.

Function

This area has several functions, all related to language, math and cognition. It has been found that people with a large BA 39 are good at math. In fact, this area is active in the exact calculation of certain sums. This area helps with this by retrieving mathematical facts from memory, and storing new knowledge again.

Location

BA 39 is located in the parietal lobe, and is also called the Angular Gyrus. This area lies folded around the end of the superior temporal sulcus.

Fact

Some researchers think this area is important for understanding metaphors. Other researchers think there is no truth to this: these researchers refer to another area for this, namely the somatosensory cortex. Additionally, there are researchers who think that you can't attribute metaphors to one part of the brain, but that several areas are involved. Another example of how much there is still to discover!

Patients

Damage to this area can cause the development of Gerstmann syndrome. This disorder has four main symptoms, dysgraphia (difficulty writing), dyscalculia (difficulty doing math), finger agnosia (difficulty naming indicated fingers) and left-right disorientation.

Author: Myrthe Princen (translated by Thomas von Rein)

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