What is the role of the occipital lobe?
paired occipital brain lobes play a major role in visual processing of sensory data received from the eyes. Uncooked data is transformed into meaningful information, which is then transmitted to other areas of the brain. This part of the brain, located in the back of the brain under the occipital bone of the skull, is relatively well protected from injury. If an injury occurs, visualistic, visual distortion and hallucination may occur. Studies analyzing injuries or other damage in this part of the brain helped scientists determine the functions of the occipital lobe. Although each of these aspects is processed individually, the information is again processed to create a single meaningful image. Damage to specific areas of the occipital lobe can lead to spatial distortion, while the objects appear too large or such. Colors can be missing or changed when another area of lobe is disturbed. If the primary area of visual processing suffers damage, the overall loss of vision may occur.
studies of patients with conditions affecting the rear lobes show that hallucinations and illusions are generated by this area of visual brain processing. Damage to the occipital lobe can be caused by tumors, injuries and strokes. The rare form of epilepsy - occipital epilepsy - is accompanied by visual symptoms. Fleetizing visualizations of flashes of light and color, loss of vision or spreading hallucinator formulas are characteristic of epilepsy of occipital epilepsy. They are similar to Auras migraines, but they are usually more colorful and appear only for seconds.
tumors and lesions in occipital lobes cause disorders and disruption of visual visuals. The vision may be lost in one or both eyes. It can be blurred or images can be doubled. The ability to recognize familiar objects and faces can also be disturbed. All visual symptoms caused by any form of damage to this part of the brain help scientists determine the roles that play withPecify areas of the occipital lobe.
In addition to its duties of visual processing, it is assumed that the occipital lobe of the brain plays a role in dreaming. One study examined the reported loss of dreams in a patient with a stroke whose occipital lobes were damaged. Although she also suffered a loss of vision for several days, the complete loss of dreams continued for months. She had no other sleep disorders, she was still experiencing a rapid eye movement (REM), but no accompanying dreams. One year after the stroke the patient dreamed again, but not with the frequency or living she had experienced before the stroke.