The brain :: essays research papers

Occipital, Frontal, and Temporal LobesThe occipital lobes atomic number 18 the center of our visual perception system. They are not fortuneicularly vulnerable to injury because of their location at the back of the brain, although any epoch-making trauma to the brain could produce subtle changes to our visual-perceptual system, such as visual field defects and scotomas. The Peristriate region of the occipital lobe is involved in visuospatial processing, discrimination of accomplishment and color discrimination (Westmoreland et al., 1994). Damage to one side of the occipital lobe causes homonomous impairment of vision with exactly the same "field cut" in some(prenominal) eyes. Disorders of the occipital lobe can cause visual hallucinations and illusions. Visual hallucinations (visual images with no external stimuli) can be caused by lesions to the occipital region or blase lobe seizures. Visual illusions (distorted perceptions) can take the form of objects app pinnai ng larger or smaller than they actually are, objects lacking color or objects having abnormal coloring. Lesions in the parietal-temporal-occipital association field of operations can cause word blindness with report impairments (alexia and agraphia) (Kandel, Schwartz & Jessell, 1991).Frontal LobeThe Frontal Lobe is responsible for cognition and memory. The prefrontal area gives one the ability to concentrate, judgment and inhibition as well as personality and emotional traits. The pre push area is responsible for storage of voluntary activities and travel patterns. The motor area provides voluntary motor activity. Language is a motor speech. Temporal LobeLocation of the temporal lobe is near the temples just above the ear canal. Functions of the temporal lobe are toControl hearing from birth a luxuriate can hear completely. The temporal lobe in the brain is fully highly-developed before the baby is born. Language use talking is very well-nigh linked to hearing, and since peo ple can hear they react by exploitation language as means of communication. Emotions, especially fear plays a part in this role. Some complex aspects of vision, including the ability to see patterns such as faces. When the temporal lobe is damaged it causes     Deficits or limitations in get a lineing and comprehending spoken rowing      May cause a lack of fear if the emotional responses are no longer working (a person seeing a glide may not be afraid because they dont understand what the object even is)