Brodmann area 19

Brodmann area 19 (BA19), also known as the parastriate cortex, is one of the cytoarchitectonic areas of the human brain as defined by Korbinian Brodmann. It is involved in the processing of visual information, particularly in the recognition of complex objects and scenes.

Anatomy

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Brodmann area 19 shown in green on lateral and medial views of the brain

BA19 is located in the occipital lobe, surrounding the secondary visual cortex (BA18). It is part of the visual cortex, which is responsible for processing visual information. BA19 is found in both hemispheres of the brain.

Function

The primary function of BA19 is the processing of visual information. It is particularly involved in the recognition of complex objects and scenes, and is thought to play a role in the perception of color and motion. It also contributes to visual attention and the integration of visual information with other sensory modalities.

Clinical significance

Damage to BA19 can result in a variety of visual disorders, including visual agnosia, a condition characterized by an inability to recognize objects, faces, or scenes, despite having normal visual acuity. It can also lead to hemianopsia, a condition characterized by loss of vision in half of the visual field.

See also

• Brodmann area
• Visual cortex
• Visual agnosia
• Hemianopsia