Prefrontal Cortex Lesions from Neurosurgeon and Patient Perspective :: Surgery Surgical Health Essays

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. Psychosurgery is the branch of neurosurgery that involves severing or otherwise disabling areas of the brain to treat a personality disorder, behavior disorder, or other mental illness (Rodgers 1992). Modern psychosurgical techniques target the pathways between the limbic system (the portion of the brain on the inner edge of the cerebral cortex) that is believed to regulate emotions, and the frontal cortex, where thought processes are seated. The field of neurosurgery as a specialty was not defined until the end of the 19th century. In earlier days, surgeries had to be tailored to poor lighting and lack of magnification (Valenstein 1986). The development and implementation of the operating microscope in the 1960s allowed surgeons to operate through a narrow tunnel to resect deep-seated lesions (Valenstein 1986). Psychosurgery, and lobotomy in particular, reached the height of use just after World War II. Between 1946 and 1949, the use of the lobotomy grew from 500 to 5,000 annual procedures in the United States (Valenstein 1986). Lobotomy is a psychosurgical procedure involving selective destruction of connective nerve fibers or tissue. It is performed on the frontal lobe of the brain and its purpose is to alleviate mental illness and chronic pain symptoms (Valenstein 1986). At that time, the procedure was viewed as a possible solution to the overcrowded and understaffed conditions in state-run mental hospitals and asylums. Known as prefrontal or transorbital lobotomy, depending on the surgical technique used and area of the brain targeted, these early operations were performed with surgical knives, electrodes, suction, or ice picks, to cut or sweep out portions of the frontal lobe. Today's psychosurgical techniques are much more refined. These technological advances include the use of computer- assisted stereotaxis, intra-operative ultrasound, brain mapping and endoscopy. Minimally invasive surgery is a major advance in neurosurgery and refers not only to a more limited skin incision

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1. How will you find the right caregiver for our family? During the initial assessment, we take detailed notes about your loved one’s hobbies, interests and needs. We then review our caregiver pool to find the person with the matching personality and skills. A member of our team will also be present on the first day of home care for the caregiver introduction and to ensure a smooth start. 2. Do you train your caregivers? Yes, extensively. We start by hiring caregivers who have experience working in senior care, then we provide education on Senior Helpers’ processes, standards and core values. New caregivers complete a 6-hour orientation training that includes topics such as rights of clients, infection control, client care tips and more. All caregivers have access to dozens of training topics about health care and senior care. 3. Do I pay the caregiver directly? No, you should never pay a caregiver directly. One designated family member will receive an invoice every other week, and payment should be remitted directly to our office. 4. What can I expect in a typical day with my caregiver? It depends on the type of service you have requested. It might include grocery shopping and running errands in the morning, preparing and eating lunch, preparing dinner for later, and going for a walk and playing games in the afternoon. We also have many activities available for our caregivers to check out from our Client Resource Library, including mind-stimulating programs for our clients with Alzheimer’s or dementia. 5. Will we have the same caregiver every time? We can’t guarantee your caregiver will always be available, but we’ll make every effort to have the same caregiver for every visit. We may occasionally introduce a new caregiver ... ...commended by their doctor. 12. How quickly can service start? Right away. Golden Oasis is known for our quick-start home care approach, which provides the care you need, when you need it. 13. Do I have to sign a contract or keep services for a specified period of time? We do have a standard service agreement that outlines the services that we will provide, which protects you and us. However, you can cancel our service at any time with at least two weeks notice. 14. Can I make changes to the schedule if I have an appointment? Absolutely! We just ask that you give us as much notice as possible by calling our office. Any cancellations with less than 24 hours notice may be subject to fees. 15. If I have a problem or question, whom should I contact? If you have any concerns or questions, please don’t hesitate to contact our office and speak with a member of our team.

International Product Life Cycle Essay

The international product life cycle (IPLC) theory, developed and verified by economists to explain trade in a context of comparative advantage, describes the diffusion process of an innovation across national boundaries. The life cycle begins when a developed country, having a new product to satisfy consumer needs, wants to exploit its technological breakthrough by selling abroad. Other advanced nations soon start up their own production facilities, and before long LDCs do the same Efficiency/comparative advantage shifts from developed countries to developing nations. Finally, advanced nations, no longer cost-effective, import products from their former customers. The moral of this process could be that an advanced nation becomes a victim of its own creation. IPLC theory has the potential to be a valuable framework for marketing planning on a multinational basis. In this section the IPLC is examined from the marketing perspective, and marketing implications for both innovators and initiators are discussed below. Stages and Characteristics There are five distinct stages (Stage 0 through Stage 4) in the IPLC. Table below shows the major characteristics of the IPLC stages, with the United States as the developer of the innovation in question. Exhibit shows three life-cycle curves for the same innovation: one for the initiating country (i. . , the United States in this instance), one for other advanced nations, and one for LDCs. For each curve, net export results when the curve is above the horizontal line; if under the horizontal line, net import results for that particular country. As the innovation moves through time, directions of all three curves change. Time is relative, because the time needed for a cycle to be completed varies from one kind of product to another.

Pavlov vis-à-vis Piaget Essay

Looking at the history, many names flourished in the area of psychology in the desire to learn about man and behavior.   These names have contributions that are of significance even to the present-day studies in the field of psychology. This paper deals with two of the notable names in this realm – Ivan Pavlov and Jean Piaget. Ivan Pavlov was a Russian psychologist, physician, and physiologist. He had substantial contributions to the various fields of neurology and physiology. His researches were mostly focused on conditioning, temperament and involuntary reflex actions. He bagged the 1904 Nobel Prize in Physiology and Medicine for his researchers and experiments on digestion which became the foundation of a more extensive research on the digestive system. In his work on involuntary reactions to stress and pain, he broadened the description of the four temperament types: phlegmatic, choleric, sanguine, and melancholic. The study of TMI or transmarginal inhibition was also started by Pavlov and his researchers. TMI is the body’s instinctive reaction of shutting down when exposed to overwhelming stress or pain. Of his contributions, Pavlov is widely recognized for his demonstration of classical conditioning or Pavlovian conditioning. Pavlov’s theory of classical conditioning started while he was working on his study of the digestive process in dogs. He observed that the dogs salivated before they received their food. Even just at the sight of the lab attendant, the dogs salivated. He called this phenomenon ‘psychic secretion.’ He made an experiment on this and used a bell and meat powder. He hit the bell and followed the ring with the meat powder. At the onset, only the meat powder made the dog salivate, but after repeating the practice, the ring of the bell made the dog salivate. Even when the meat powder was eliminated, the dog continued to salivate at the ring of the bell. In this theory, a living being learns to correlate one stimulus with one another. It is learned that the first stimulus is an indicator for the second stimulus. In the above experiment, the ring of the bell cued the dog that food might be coming. The following are the key concepts of Classical Conditioning:  · Unconditioned Stimulus (UCS) – a stimulus that can already elicits a response, like the food in the experiment.  · Unconditioned Response (UR) – response that is elicited by the unconditioned stimulus, like the salivation of the dog in the experiment.  · Conditioned Stimulus (CS) – a new and neutral stimulus that when matched up with a UCS elicits a similar response, like the bell in the experiment.  · Condition Response (CR) – the learned response when the neutral CS is paired with the UCS, like the salivation of the dog to the ring of the bell after repeated pairing of it with the food. (www.niu.edu) Although many evaluators criticize Pavlov’s theory as being tested only to animals, classical conditioning can actually be observed to a person’s behavior, even without the purpose. A person who experienced a traumatic vehicular accident would be frantic about the sound of screeching tires even at a normal situation. That person’s mind was condition that screeching tires mean accident. Jean Piaget was a biologist who was born in Neuchatel, Switzerland in 1896. He originally was studying mollusks but shifted to the study of developmental psychology and human intelligence from which he became a significant experimenter and theorist. At the age of 10 he published his first paper and at the young age of 22 he received his Ph.D. in science from the University of Neuchatel. Although he was technically a biologist and a philosopher, he regarded himself as a â€Å"genetic epistemologist.’ His interest was mainly focused on how an individual comes to know things. The thought process that lies beneath reasoning was his interest, particularly in the development of thinking.   Piaget believed that children have different way in responding compared to adults because of the difference in reasoning.   He started observing children of various ages and began working on his theory on the process of cognitive development. According to his theory, the development of children’s thinking is not a smooth process.   Before children learn new areas and abilities, there are particular stages at which it â€Å"takes off† and move to those new learning. These transitions transpire at about 18 months, 7 years and 11 or 12 years. Piaget’s key ideas include: schema, assimilation, accommodation, adaptation, egocentrism, and equilibrium. Schema are the set of sensori-motor skills which dictate the manner in which an infant discover his environment resulting to gaining more information of the world and more complicated exploratory skills.   These are the â€Å"representation in the mind of a set of perceptions, ideas, and/or actions, which go together.† (www.learningandteaching.info) Assimilation is â€Å"the process by which a person takes material into their mind from the environment, which may mean changing the evidence of their senses to make it fit.† (www.learningandteaching.info) Accommodation is â€Å"the difference made to one’s mind or concepts by the process of assimilation.† (www.learningandteaching.info) Adaptation is â€Å"learning† in layman’s term. Piaget believed that adaptation or learning is a biological process from which the two sides are assimilation and accommodation. Egocentrism is a part of the early stage of psychological development. It is a â€Å"belief that you are the center of the universe and everything revolves around you: the corresponding inability to see the world as someone else does and adapt to it.† (www.learningandteaching.info) According to his theory, there are four stages of cognitive development: sensori-motor stage, pre-operational stage, concrete operational stage, and the formal operational stage. The first stage, sensori-motor stage, lasts from birth to about 2 years of age. In this stage, the infant makes use of his motor abilities and senses to grasp his environment. During the end of this stage, the infant develops more complicated combinations of his sensori-motor skills. The second stage, pre-operational stage, lasts from about 2 until about seven years old. Because of the child’s new abilities, this is a short step to symbol usage. The child now has a clear idea of past and future. This is the stage, though, that a child is egocentric, seeing things only from his point of view. The third stage, concrete operational, lasts from about 7 to about 11. Aside from the representational use of symbols, a child already has the ability to manipulate those symbols sensibly in the context of tangible situations. In this stage is also where a child develops the skill to conserve length, number and liquid volume. The fourth stage, formal operations stage, takes place from about 12 and up. This is the stage where a child develops hypothetical thinking, or the use of logical operations in the abstract, instead of the concrete. Both of these theories talk about learning. Basically, Pavlov and Piaget believe that learning can be directly influenced by the stimuli found in the environment of an individual. Both of them also imply that an individual has an innate and natural response to a stimulus, the unconditioned response (UR) for Pavlov and the schema for Piaget. What differs one from another is the processes and methods of how an individual learns. In Pavlov’s theory, a new learning is acquired through mind conditioning. A normal response of an individual to a normal stimulus can be altered through introduction of another stimulus from which the normal stimulus can be associated to, like what transpire to his experiment with the dog. In Piaget’s theory, on the other hand, learning can also be acquired through exposure to the environment, but at a certain stage, especially to children. A child, for example, won’t have an idea of what is past and future until he reaches the age of around 2, which is called the pre-operational stage. Piaget’s theory implies that the extent of a child’s learning is restricted to the stage or the age of the child. During the early stage of a child, he is said to be egocentric. Having this characteristic, a child’s health and physical condition is put at risk. The schema of grab and thrust is applied by a child to any object, oblivious of any harm that it may cause. He may be used to grabbing his rattle and thrusting it in his mouth, but once he came across a new object, he may use this schema to it, like a small animal or a pointed thing. These two theories are bases of more comprehensive studies of human behavior. Both of them are true in the sense that they can be observed and applied. It is proper to say that these theories are two of the most significant concepts in the world of psychology.

Nationalism and The Israeli- Plastianian confilict Essay

Nationalism and The Israeli- Plastianian confilict - Essay Example ower of a nation, the ability of modern states to provide the needs of its citizenship depends on a whole set of global and domestic actors that have more than diluted the very fundamentals of nationalism. At the core of this phenomenal decline is the boom in information and informational technologies. Notwithstanding the foregoing, national identity remains enormously important. As globalization continues to transform the world, the very significance nationalistic perceptions of state-sovereignty, citizenship, and inter-state relations will continue to depreciate even further, with their relevance dependent much on the changes and adaptations to the emerging forces that are set to get even more deleterious.   The iron wall, a policy instituted by the hard-line Zionists in Israel with regards to dealing with the Arabs towards finding a lasting peace has had very little effect in terms of actualizing its very purpose. That though the policy has brought forth a comparatively stronger Israel relative to its neighbors militarily, the hard stance has only served to portray the nation’s military actions in uncompromising lenses, thus, the regressive peace agreement that has more than thrown numerous opportunities into disarray. The film on the same is, however, full of facts on the ground, but is far from balanced, for it majors on the views of one and only person, Vladimir Jabotinsky. The issues raised therein, though, remains crucial in determining the facets of a lasting peace in the

Summary of three Leadership profiles Research Paper

Summary of three Leadership profiles - Research Paper Example These qualities have been presented to highlight variable leadership skills that can be obtained from experience or nurturing of the entity to satisfy service delivery. An organization or a group setting formed towards a goal completion is determinant on the leadership skill implemented. This paper defines the aspect of leadership as defined by three personalities, and the theories they applied to attribute the leadership profiles available. Goleman described leadership as a factor created by personalities with a highlighted feature to deliver organization within a group creating order and discipline. He presented six leadership presentations in identifying the forms that may be held in the position (Burchill, 2012). The personality is the most aggressive and expects prompt feedback to his/her orders from the subordinates. The style applies strict measures in task completion with tyrannical techniques applied to deliver results. The measure is best applied where there is the need to create immediate results and emergency procedure. However, is use should be temporary to get the desired results then abandoned to maintain employee satisfaction. The leader identifies himself/herself as the authority and his ideas being revolutionary to deliver results. This measure is effective when the group necessitates a stable direction to deliver the required results. The leader is more flexible and delivers results based on employee encouragement and involvement. The morale or the group is built through offering direction while he is on the supporting team. This measure builds the efforts of the members and generates a positive attitude towards task completion. However, the leader may shy from scolding negative performance for fear of low morale generation. The leader makes decisions based on his/her subordinates. A fair vote is presented to articulate results and equality accorded to the workers. Communication is the applied tool and the leader listen

Leagal case study Term Paper Example | Topics and Well Written Essays - 500 words

Leagal case study - Term Paper Example In December 2002 Mora received a report of detainee abuse at Guantanamo Naval Base, Cuba. Despite the notation that the Navy or Marine Corps and OGC attorneys were not involved, he still went to investigate. Mora admits that this chronological narrative of the significant events pertaining to detainee interrogation, in which he and the OGC participated or had knowledge of, is sadly lacking since he was unable to identify and name all those who participated. Suffice it to say that in other aspects his efforts yielded a lot of good. He was able to uncover an action memo, dated Dec.2, authorizing entitled "Counter -Resistance Techniques" authorized by Secretary Rumsfield and rumored to be partly authorized at a "high level" in Washington permitted the use of certain interrogation techniques. Mora understood the necessity of obtaining information to prevent another 9/11 but to condone such practices to him will cause harm to the national legal, political, military and diplomatic interest s.