BA19

BA19, or Brodmann area 19, is a region of the cerebral cortex defined by its cytoarchitecture as catalogued by Korbinian Brodmann. It is located in the occipital lobe, adjacent to the primary (BA17) and secondary (BA18) visual cortices, and is part of the extrastriate visual cortex.

Functionally, BA19 participates in higher-order visual processing, including integration of color, form, motion, and complex shapes, contributing to object recognition and visual perception. It also connects with both the ventral and dorsal visual streams.

In research and clinical contexts, neuroimaging studies frequently show BA19 activation during tasks requiring complex visual analysis, and lesions can affect higher-level visual processing, depending on the extent of damage.

As with other Brodmann areas, the precise boundaries of BA19 vary between individuals, and it remains a component of the broader extrastriate visual network identified in modern parcellations.