The brain :: essays research papers

Occipital, facade, and Temporal LobesThe occipital lobes atomic number 18 the nucleus of our visual perception system. They are not particularly vulnerable to daub be throw of their location at the back of the hotshot, although any signifi adviset trauma to the brain could produce subtle changes to our visual-perceptual system, such as visual field defects and scotomas. The Peristriate office of the occipital lobe is involved in visuospatial processing, inequality of movement and color discrimination (Westmoreland et al., 1994). Damage to one side of the occipital lobe causes homonomous loss of vision with on the button the same "field cut" in both eyes. Disorders of the occipital lobe eject cause visual hallucinations and illusions. Visual hallucinations (visual images with no external stimuli) can be caused by lesions to the occipital region or temporal lobe seizures. Visual illusions (distorted perceptions) can take the form of objects appearing larger or smaller than they really are, objects lacking color or objects having abnormal coloring. Lesions in the parietal-temporal-occipital association neighborhood can cause word blindness with writing impairments (alexia and agraphia) (Kandel, Schwartz & Jessell, 1991).Frontal LobeThe Frontal Lobe is responsible for cognition and memory. The prefrontal ambit gives one the susceptibility to concentrate, judgment and inhibition as well as personality and steamy traits. The premotor area is responsible for storage of voluntary activities and motor patterns. The motor area provides voluntary motor activity. Language is a motor speech. Temporal Lobe locating of the temporal lobe is near the temples just above the ear canal. Functions of the temporal lobe are toControl understanding from birth a treat can hear completely. The temporal lobe in the brain is fully developed before the baby is born. Language use talking is very closely linked to hearing, and since quite a little can hear they r eact by using language as means of communication. Emotions, especially fear plays a part in this role. just about complex aspects of vision, including the ability to see patterns such as faces. When the temporal lobe is change it causes     Deficits or limitations in understanding and comprehending spoken words      May cause a lack of fear if the emotional responses are no eight-day working (a person seeing a snake may not be afraid because they dont understand what the object unconstipated is)