EXTRASTRIATE AREA Meaning and
Definition
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The extrastriate area refers to a region of the brain's cerebral cortex that lies adjacent and superior to the primary visual cortex or striate cortex. The primary function of the extrastriate area is to process visual information received from the eyes and extract more complex features from visual stimuli. This area contains a network of interconnected neurons that analyze and interpret visual input after it leaves the primary visual cortex.
The extrastriate area is divided into several sub-regions, each responsible for different aspects of visual processing, such as motion perception, object recognition, color perception, and face recognition. These sub-regions work together in a complex manner to integrate visual information and give rise to our perception of the external world.
Studies utilizing neuroimaging techniques have helped identify specific regions within the extrastriate area that respond to certain visual stimuli. For instance, the lateral occipital cortex is involved in object recognition, and the fusiform face area is specialized for processing facial features.
Overall, the extrastriate area plays a crucial role in transforming basic visual information into meaningful representations, enabling us to perceive and navigate the visual environment. Continued research into the functioning and organization of the extrastriate area contributes to our understanding of higher-level visual processing and the intricate workings of the human brain.
Common Misspellings for EXTRASTRIATE AREA
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Etymology of EXTRASTRIATE AREA
The term "extrastriate area" is derived from two main components: "extra-" and "striate area".
1. "Extra-" is a prefix that comes from the Latin word "extra", meaning "outside" or "beyond". In English, it signifies something additional or supplementary to what is usual or expected.
2. "Striate area" refers to the primary visual cortex, also known as "striate cortex" or "V1". It is called "striate" because of the distinct bands or stripes formed by layers of cells in this region. The "striate area" is responsible for initial processing of visual input and is located at the posterior end of the occipital lobe.
Therefore, "extrastriate area" refers to regions in the cerebral cortex that are situated outside the primary visual cortex (V1).
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