What are the occipital lobe functions?

The primary function of the occipital lobe includes certain aspects of visual processing. Information received by the eyes is sent to the primary visual bark in the occipital lobe, which is further processed by two levels of the bark of the visual association. Damage to the primary visual cortex may result in blindness, while damage to the bark of the visual association can cause visual agnosia. When the brain is divided into two hemispheres, right and left, it contains two of each lobe, each with a different function in the brain. The frontal lobe is involved in movement and planning, while the temporary lobe is involved in the auditory processing. The primary function of the parietal lobe is the perception of the body or somatosensation, while the occipital lobe, which is located towards the back of the cortex, is involved in vision.

Visual processing is achieved by the primary visual bark using the optical nerves associated with the eyes that send information to Thalam; This information is then sent to the primary visual bark. When the information is acceptedThe primary sensory peel is sent to regions located in the neighborhood called Sensory Association Cortex. One of the main functions of the occipital lobe is to send information from the primary visual cortex to the bark of the visual association. The visual association cortex is located in more than one lobe, which means that other lobes, in addition to the rear lobe functions, are also involved in vision. These areas analyze visual information that receives the primary visual bark and stores visual memories.

There are two levels of bark of the visual association. The first level, which is located around the primary visual bark, receives information about the movement of objects and color, and also receives information about the perception of shapes. The second level, located in the middle of a parietal lobe, is responsible for perception of movement and location. This level is also located at the bottom of the temporal lobe, which is responsible for information about the three -dimensional form.

Damage to occipital lobe functions causes various visual disorders. If it isThe primary visual bark is completely damaged, it will result in blindness, because the primary visual bark has a field of view on its surface. Therefore, damage results in dysfunction in this mapped area. The lesions to the visual association cortex do not lead to blindness; Instead, the patient may have difficulty recognizing objects, a deficit called Visual Agnosia. For example, the patient may be able to pick up the clock and recognize the object over the touch; However, if it shows a picture of the clock, it will only be able to describe the elements of the image, such as the TON round surface of the face clock.