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Free Lesions Essays and Papers

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    Cerebellar Lesions

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    Cerebellar Lesions The cerebellum integrates sensory and other inputs to coordinate ongoing movements and participate in motor planning. The cerebellum has no direct connections to the lower motor neurons but modulates motor function through upper motor neurons. The Vermis and flocculonodular lobes regulate balance and eye movements via connections with vestibular nuclei and oculomotor system, these regions control the medial motor systems. The more lateral areas of the cerebellum control

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    Lesions of the Prefrontal Cortex

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    Lesions of the Prefrontal Cortex The prefrontal cortex is involved in a wide variety of functions. It is known as the area of the brain which has “executive control”, taking input from other areas of the brain and combining and applying those functions (Kalat 2004). Lesions to the prefrontal area can greatly impair overt behavior of an inflicted individual. These deficits are dependent upon the severity of the lesion and the specific region of the prefrontal cortex in which the lesion

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    Cerebellar Lesions

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    Cerebellar Lesions According to an article by Rhawn Joseph, Ph.D., each of the deep cerebellar nuclei maintains a semi-independent map of the human body (2000). The cerebellum is tonically active, and is presumed to exert a stabilizing influence on motor function; accordingly, it is functionally responsible for coordination and smooth fine tuning of movement, in addition to influencing timing. Not only is the cerebellum associated with motor functioning, but, importantly, also with classical

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    Cerebellar Lesions

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    Cerebellar Lesions Introduction: The Cerebellum The Cerebellum, accounting for approximately 25 percent of the brain, sits above the brainstem and communicates with nearly all areas of the neuroaxis. It is implicated in sensory, motor, cognitive, emotional and speech processing, display neuroplasticity, learning, and memory. (Joseph, 2000.) The cerebellum is made up of several structures, and differing regions have different functions with a primary motor component, including visual

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    Tumors or Lesions to the Hypothalamus Patient The Hypothalamus is a small area near the base of the brain just ventral to the thalamus. It has widespread connections with the rest of the forebrain and the midbrain. Partly through nerves and partly through hypothalamic hormones, the hypothalamus conveys messages to the pituitary gland, altering its release of hormones (Kalat, 2003). Any type of damage to a hypothalamic nucleus, such as tumors or lesions, may lead to abnormalities in

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    Cerebellar Lesions and The Neurosurgeon

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    Cerebellar Lesions and The Neurosurgeon Modern Surgical Approaches The incorporation of computed topography into stereo tactic techniques coincided with a general interest in stereo tactic approaches to intracranial tumors. Several authors including Moser and Backlund in 1982 and Apuzzo in 1984 reported safe CT based stereo tactic tumor biopsies ofpineal region tumors. Most series of stereo tactic tumor biopsies contain a number of pineal region lesions. The reported mortality and morbidity

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    Behaviors Caused by Hypothalamic and Thalamic Lesions In the field of neuropsychology, the area in the brain that includes the hypothalamus, the thalamus, and the subthalamus is referred to as the subcortex diencephalon (Kalat 2004). In the following section, lesions to these specific areas will be discussed. The results of the lesions will be addressed from the perspective of a neuropsychologist. Neuropsychological assessment refers to the objective evaluation of the cognitive, linguistic

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    Cerebellar Lesions and the Neurologist

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    Cerebellar Lesions and the Neurologist What is a Neurologist? A neurologist is a medical doctor trained in the diagnosis and treatment of nervous system disorders including diseases of the brain, spinal cord, nerves and muscles (www.neurologychannel.com). Common nervous system diseases treated by neurologists include multiple sclerosis, Alzheimer’s disease, headaches, stroke or injury to the nervous system. The types of diagnostic tests employed by neurologists to detect neurological

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    Prefrontal Cortex Lesions from Neurosurgeon and Patient Perspective In this paper, I will discuss lesions of the prefrontal cortex from the perspective of the practice of neurosurgery (in particular, the sub-field of psychosurgery) and then I will consider some studies that look at the implications of lesions to the prefrontal cortex to the brain and behavior, from the perspective of the patient with the lesion. Initially, I will start with the history and explanation of psychosurgery.

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    Subcortex Diencephalon lesions from the view of the Neurologist and the Neurosurgeon The diencephalon, which includes the thalamus, hypothalamus, and subthalamus of the brain will be discussed in this project paper however, the main focus will by on the hypothalamus of the diencephalon structure. To begin a brief review of the functions of the thalamus and hypothalamus, the thalamus is the input center for sensory information and the output center for motor information. The hypothalamus

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