What Does The Right Frontal Lobe Control

Frontal Lobes

The frontal lobes are considered our emotional control center and dwelling house to our personality. In that location is no other function of the brain where lesions can cause such a wide variety of symptoms (Kolb & Wishaw, 1990). The frontal lobes are involved in motor function, trouble solving, spontaneity, retentivity, linguistic communication, initiation, judgement, impulse control, and social and sexual behavior. The frontal lobes are extremely vulnerable to injury due to their location at the front of the attic, proximity to the sphenoid wing and their big size. MRI studies take shown that the frontal area is the near common region of injury following balmy to moderate traumatic encephalon injury (Levin et al., 1987).

There are important asymmetrical differences in the frontal lobes. The left frontal lobe is involved in controlling language related movement, whereas the correct frontal lobe plays a role in non-verbal abilities. Some researchers emphasize that this dominion is not accented and that with many people, both lobes are involved in nearly all behavior.

Disturbance of motor function is typically characterized by loss of fine movements and strength of the arms, easily and fingers (Kuypers, 1981). Complex bondage of motor movement likewise seem to exist controlled by the frontal lobes (Leonard et al., 1988). Patients with frontal lobe damage showroom little spontaneous facial expression, which points to the role of the frontal lobes in facial expression (Kolb & Milner, 1981). Broca'southward Aphasia, or difficulty in speaking, has been associated with frontal harm by Brownish (1972).

An interesting miracle of frontal lobe damage is the insignificant effect information technology can have on traditional IQ testing. Researchers believe that this may accept to do with IQ tests typically assessing convergent rather than divergent thinking. Frontal lobe damage seems to have an impact on divergent thinking, or flexibility and trouble solving ability. There is also show showing lingering interference with attention and memory even afterwards proficient recovery from a TBI (Stuss et al., 1985).

Some other area often associated with frontal impairment is that of "behavioral sponteneity." Kolb & Milner (1981) plant that individual with frontal damage displayed fewer spontaneous facial movements, spoke fewer words (left frontal lesions) or excessively (right frontal lesions).

One of the nigh mutual characteristics of frontal lobe damage is difficulty in interpreting feedback from the environment. Perseverating on a response (Milner, 1964), chance taking, and not-compliance with rules (Miller, 1985), and dumb associated learning (using external cues to help guide behavior) (Drewe, 1975) are a few examples of this blazon of deficit.

The frontal lobes are also thought to play a role in our spatial orientation, including our body'south orientation in space (Semmes et al., 1963).

I of the most common effects of frontal harm can exist a dramatic change in social behavior. A person's personality tin can undergo significant changes after an injury to the frontal lobes, peculiarly when both lobes are involved. There are some differences in the left versus correct frontal lobes in this area. Left frontal damage normally manifests as pseudodepression and right frontal damage as pseudopsychopathic (Blumer and Benson, 1975).

Sexual beliefs tin likewise be effected by frontal lesions. Orbital frontal damage can innovate abnormal sexual behavior, while dorolateral lesions may reduce sexual interest (Walker and Blummer, 1975).

Some common tests for frontal lobe function are: Wisconsin Card Sorting (response inhibition); Finger Tapping (motor skills); Token Examination (linguistic communication skills).

References:

Blumer, D., & Benson, D. Personality changes with frontal and temporal lobe lesions. In D. Benson and D. Blumer, eds. Psychiatric Aspects of Neurologic Disease. New York: Grune & Stratton, 1975.

Dark-brown, J. Aphasia, Apraxia and Agnosia. Springfield, IL: Charles C. Thomas, 1972.

Drewe, East. (1975). Go-no-go learning after frontal lobe lesion in humans. Cortex, 11:8-16.

Kolb, B., & Milner, B. (1981). Performance of complex arm and facial movements subsequently focal encephalon lesions. Neuropsychologia, 19:505-514.

Kuypers, H. Beefcake of the descending pathways. In 5. Brooks, ed. The Nervous System, Handbook of Physiology, vol. 2. Baltimore: Williams and Wilkins, 1981.

Leonard, K., Jones, L., & Milner, B. (1988). Rest impairment in handgrip strength later unilateral frontal-lobe lesions. Neuropsychologia, 26:555-564.

Levin et al. (1987). Magnetic resonance imaging and computerized tomography in relation to the neurobehavioral sequelae of mild and moderate head injuries. Journal of Neurosurgery, 66, 706-713.

Miller, Fifty. (1985). Cognitive risk taking after frontal or temporal lobectomy. I. The synthesis of fragmented visual information. Neuropsychologia, 23:359-369.

Milner, B. Some effects of frontal lobectomy in human being. In J. Warren and K. Akert, eds. The Frontal Granular Cortex and Behavior. New York: McGraw-Hill, 1964.

Semmes, J., Weinstein, S., Ghent, L., & Teuber, H. (1963). Impaired orientation in personal and extrapersonal space. Brain, 86:747-772.

Stuss, D. et al. (1985). Subtle neuropsychological deficits in patients with good recovery after closed head injury. Neurosurgery, 17, 41-47.

Walker, E., & Blumer, D. The localization of sex in the brain. In K.J. Zulch, O. Creutzfeldt, and G. Galbraith, eds. Cerebral Localization, Berlin and New York: Springer-Verlag, 1975.

What Does The Right Frontal Lobe Control,

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