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Free research papers and essays on topics related to: lobe

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  • Add And Learning Strategies - 1,641 words
    Add And Learning Strategies Attention can be defined as the process of selecting certain environmental inputs needed for cognitive processing. Information that we are capable of sensing stays with us in the sensory register for a very brief period of time. From this point the information is cognitively processed. The role of attention can be found in the moving of this information from the sensory register into the working memory. Normal attention span seems to develop in three stages. First, the childs attention is said to be overly exclusive. This is a term used by psychologists to describe attention that is focused on a single object for a long period of time while tuning out all other st ...
    Related: classroom learning, learning environment, learning experience, learning strategies, family history
  • Addadhd - 1,128 words
    ADD/ADHD Factual Data Attention deficit hyperactive disorder (ADHD) refers to a group of symptoms that begin in infancy and can continue into adulthood, causing difficulties for people at home, at school, at their jobs, and within their communities. The severity of symptoms varies among people with ADHD. Some people have difficulty with overactivity (hyperactivity), while others have difficulty remembering, thinking, making judgments, and solving problems. The most common symptom of ADHD is difficulty remaining focused on a task until it is completed. People with ADHD have a hard time completing tasks that are boring, repetitive, or difficult for them. Many people with ADHD have trouble cont ...
    Related: deficit hyperactive disorder, social behavior, personal relationships, relationships, norepinephrine
  • Agression - 2,144 words
    Agression Aggression Aggression is a critical part of animal existence, which is an inherent driving force to humans, as we, too, are animals. The source of aggression within humans is a long summative list, but before trying to understand its source one must apply a working definition of aggression. Aggressive behavior is defined by Encyclopedia Britannica as any action of an animal that serves to injure an opponent or prey animal or to cause an opponent to retreat. (7) David G. Myers states that aggression is any physical or verbal behavior intended to hurt or destroy.(9) There are many types of aggressive behaviors, which can be differentiated from the factual act to the hidden motives. F ...
    Related: agression, slave labor, final solution, verbal behavior, track
  • Alcoholism - 1,162 words
    Alcoholism Alcoholism is perhaps the most common form of drug abuse in America today. In 1995, in the United States 67% of all the population over the age of 12 reported drinking alcohol with in the previous year. Even more astounding, is the fact that nearly 50% reported drinking some type of alcoholic beverage with in the past month. Scientist report that the reason alcohol is so popular to drinkers is because it is pleasant, relaxing, and is considered a "social beverage." But what the drinkers often do not take in to consideration are the facts that alcohol dulls the brain and confuses physical reactions. Which leads to numerous injuries, accidents, and death. Roughly 1.3 million people ...
    Related: alcoholism, social situations, blood alcohol, america today, beverage
  • Amnesia And Its Causes - 1,104 words
    Amnesia And Its Causes Amnesia, the partial or complete loss of memory, most commonly is temporary and for only a short span of experience. There are both organic and psychological causes for amnesia. Some organic causes include inflammation of the brain, head injury, or stroke. This type of memory loss occurs suddenly and can last a long time. The person may be able to recall events in the distant past but not yesterday or today. If the amnesia is caused by alcohol abuse, it is a progressive disorder, and there are usually neurological problems like uncoordinated movements and loss of feeling in the fingers and toes. Once these problems occur, it may be too late to stop drinking. In contras ...
    Related: amnesia, huntington's disease, memory loss, early childhood, daniel
  • Aphasia - 789 words
    Aphasia What is Aphasia? Aphasia is the impairment of spoken or written language caused by injury to the brain. It is also commonly referred to as Dysphasia. There are several different categories and many different types of Aphasia. What causes Aphasia? Aphasia is usually the result of a brain tumor, lesion, stroke, or severe blow to the head. Right-handed people can only acquire Aphasia if they have an injury in the left cerebral hemisphere, whereas left-handed people can quire Aphasia from an injury in either the right or left cerebral hemisphere. Therefor, left-handed people are more prone to getting Aphasia. Categories of Aphasia There are several different systems for categorizing Apha ...
    Related: aphasia, greek philosopher, brain tumor, written language, statistics
  • Brain Cancer - 635 words
    Brain Cancer The body normally forms new cells only when they are needed to replace old or damaged ones. If something happens to disturb this controlled process, abnormal or excessive cells are produced. When this occurs a tumor is developed. This is known as cancer. When a tumor is developed on the brain, it is called a brain tumor or brain cancer. Brain tumors can be benign or malignant (benign being not cancerous and malignant being cancerous). Both types can be deadly when dealing with the brain. Benign brain tumors consist of very slow growing cells. They have distinct borders and rarely spread to other locations. When viewed under a microscope, the cells of a benign tumor have an almos ...
    Related: brain, brain cancer, brain tumor, cancer, cancer research
  • Dementiaa - 3,961 words
    ... re senile plaques (SP) and Neurofibrillary tangles (NFT). There are two types of SP, neuritic and diffuse, both plaques share antigenic determinants with the Beta amyloid 4 protein. Neuritic plaques can be distinguished by their abnormally thickened neurites ( i.e., axons or dendrites) arranged around a central core of amyloid (Mirra & Gearing, 1994). By contrast the diffuse plaques lack the thickened neurites and the amyloid core seen in the neuritic plaques (Mirra & Gearing, 1994). Plaques of both types are found in varying degrees in the neocortex, entorhinal cortex, hippocampus, and in the amygdala. SP also occur in the brains of healthy people. It is only when they exceed a certain ...
    Related: cerebral cortex, nervous system, carbon dioxide, 1984, diagnosis
  • Dissection Frogs Central Nervous System - 813 words
    Dissection Frogs Central Nervous System Dissection of an adult bullfrog's central nervous system (CNS) Experiment consists of the dissection and analyzation of a bullfrogs nervous system. Dissection consists of the isolation of the CNS consisting of the brain and spinal cord. It also consists of analyzing the nervous tissue under the microscope. Materials needed: frog, scalpel, razor blade, dissecting tray, pins, forceps, scissors, microscope, slides, slide covers, water, blue dye, diagram of frogs brain, paper towel. The bullfrogs CNS is composed of the brain, which is further divided into the olfactory bulb, cerebrum, optic tract, optic lobe, pituitary gland, and the cerebellum. Also conta ...
    Related: central nervous, dissection, frogs, nervous, nervous system
  • Earth Worms - 469 words
    Earth Worms Earth Worm Disection Parts Function Digestive System - Prostomium - a small fleshy lobe that extends over the mouth, used to help dig through the soil - Mouth - the entrance for food into the digestive system, located under the prostomium - Pharynx - A tube at the beginning of the digestive tract that creates a sucking action to remove food particles from the soil, located just behind the mouth - Esophagus - a narrow passage in the digestive track that connects the pharynex to the crop - Crop - a temporary storage area in the digestive track , food waits here before it passes to the remainder of the digestive track - Gizzard - an area in the digestive track where strong muscles g ...
    Related: worms, reproductive system, nervous system, circulatory system, brain
  • Epilepsy - 855 words
    Epilepsy Epilepsy - The Silent Stalker By Steven Voskanian What is Epilepsy? Epilepsy, also called seizure disorder, chronic brain disorder that briefly interrupts the normal electrical activity of the brain to cause seizures, characterized by a variety of symptoms including uncontrolled movements of the body, disorientation or confusion, sudden fear, or loss of consciousness. Epilepsy may result from a head injury, stroke, brain tumor, lead poisoning, genetic conditions, or severe infections like meningitis or encephalitis. In over 70 percent of cases no cause for epilepsy were identified. About 1 percent of the world population, or over 2 million people, are diagnosed with epilepsy. How th ...
    Related: epilepsy, temporal lobe, young children, medical history, classified
  • Fossils Categorized As Archaic Homo Sapiens - 554 words
    Fossils Categorized As Archaic Homo Sapiens STUDY GUIDE 9 1.Describe general characteristics of fossils categorized as Archaic homo sapiens, their temporal and geographic range. Exclude Neandertals. Discuss some of the problems associated with the understanding of this fossil taxon. (a) Increased cranial capacity (b) Appear more similar to modern humans (c) Reduced face, less prognathic, greater frontal lobe (d) Thick cranial bones, no chin Archaic fossils have been found in Europe, Africa and Asia. Problems arise because there is very little fossil record and they are too young to date with pot/argon and too old to date with radiocarbon. 2.Over time neandertals have been considered both ext ...
    Related: archaic, fossils, homo, homo erectus, homo sapiens, sapiens
  • Healthcare - 1,142 words
    Healthcare In today's fast-paced world where technology rules, the medical profession is also advancing. In 1991, 2,900 liver transplants were performed in the United States while there were 30,000 canidates for the procedure in the United States alone (Heffron, T. G., 1993). Due to shortages of available organs for donation/transplantation, specifically livers, once again science has come to the rescue. Although the procedure is fairly new in the United States, the concept of living organ donation is fast growing. Living related liver transplantion was first proposed as a theoretical entity in 1969 but it was not until almost twenty years later that the procedure became a clinical reality ( ...
    Related: healthcare, liver disease, medical profession, important role, holistic
  • Hearing Loss - 1,091 words
    Hearing Loss Being deaf is a handicap that afflicts millions of people around the world every year. Hearing loss can result from any number of afflictions that can affect the outer, middle, or inner ear. The range of hearing loss can also vary from mild to severe. The ear is made up of the outer, middle and inner ear. The outer ear consists of the auricle, the external auditory canal and the lobe. The outer ear helps to funnel sound and noise into the middle ear. The middle ear consists of the eardrum and the three middle ear bones, the Mallues, Incus, and the Stapes. The middle ears primary function is to conduct sound. The inner ear is where sound is interpreted through electrical impulses ...
    Related: hearing, hearing loss, carbon dioxide, developed countries, complication
  • How Does The Brain Perceive - 1,338 words
    How Does the Brain Perceive How does a human hear? When an object makes a noise, it sends vibrations (better known as sound waves) speeding through the air. These vibrations are then funneled into your ear canal by your outer ear. As the vibrations move into your middle ear, they hit your eardrum and cause it to vibrate as well. This sets off a chain reaction of vibrations. Your eardrum, which is smaller and thinner than the nail on your pinky finger, vibrates the three smallest bones in your body: first, the hammer, then the anvil, and finally, the stirrup. The stirrup passes the vibrations into a coiled tube in the inner ear called the cochlea. The fluid-filled cochlea contains thousands o ...
    Related: brain, perceive, relative, canal
  • Huntingtons Disease - 1,066 words
    Huntingtons Disease Huntington's Background Huntington's disease is inherited as an autosomal dominant disease that gives rise to progressive, elective (localized) neural cell death associated with choreic movements (uncontrollable movements of the arms, legs, and face) and dementia. It is one of the more common inherited brain disorders. About 25,000 Americans have it and another 60,000 or so will carry the defective gene and will develop the disorder as they age. Physical deterioration occurs over a period of 10 to 20 years, usually beginning in a person's 30's or 40's. The gene is dominant and thus does not skip generations. Having the gene means a 92 percent chance of getting the disease ...
    Related: huntington's disease, temporal lobe, hopkins university, genetic testing, minute
  • Jurassic Park And Tech - 1,297 words
    ... entually clone or study them. Unfortunately attempts to isolate ancient bacteria have been inconclusive. The chief concern in isolating ancient bacteria is the contamination of the sample by modern bacteria through fractures in the amber. Despite the extensive sterilization techniques, scientists cannot be sure whether the bacteria isolated are truly ancient bacteria (Poinar, 1994). For instance, Bacillus subtilis bacteria were cultured from an amber from an amber specimen of a stingless bee from the Dominican Republic, but these bacteria are commonly found in both the alimentary canal of the modern-day stingless bee and in the soil. Also problems arise in extracting the DNA from the sin ...
    Related: jurassic, jurassic park, park, tech, mitochondrial dna
  • Killer Whales Scientific Classification: Order Genus - 1,836 words
    Killer Whales Scientific Classification: Order & Genus Killer Whales Scientific Classification: Order & Genus. The scientific order of all types of whales is Cetacea. This large order is broken down into three further groups as well: the toothed whales or Odontoceti, which includes killer whales, dolphins, porpoises, beluga whales, and sperm whales, the baleen whales or Mysticeti, which include blue whales, humpback whales, gray whales, and right whales, and the Archaeoceti order, which are all now extinct. The genus of these species is Orcinus orca. Family. The killer whale is the largest in its family of delphinid. Bottlenose dolphins, common dolphins, and Pacific white-sided dolphins are ...
    Related: genus, killer, more important, body weight, buds
  • Killer Whales: Gentle Giants, Or Viscous Killers - 1,396 words
    "Killer Whales: Gentle Giants, or Viscous Killers?" Killer whales are an important subject of mythology for many indigenous peoples, especially the Native Americans of the Pacific Northwest. The whales have not been hunted extensively by humans, although they have been hunted by some shore whaling operations, and some individuals have been taken as aquarium show animals from the waters around the Pacific Northwest and Iceland. Killer whales are perceived by many near-shore fishermen to be in competition with human fishing activity (Anheiser Busch 1). The killer whale, or Orcinus orca can be found worldwide in all seas from both tropics to Arctic and Antarctic oceans. They are one of the most ...
    Related: gentle, killer, works cited, multiple choice, lecture
  • Lung Cancer - 1,671 words
    ... . There are three subtypes within this group. Some types grow more quickly than others. Ask your doctor to explain which of these you have. There are a few other rare types of lung cancer not covered in this document. Staging is the process of finding out how far the cancer has spread. This is very important because your treatment and the outlook for your recovery depend on the stage of your cancer. There are different staging systems for small cell and non-small cell lung cancer. Small cell lung cancer staging For small cell lung cancer a two-stage system is most often used. These are limited stage and extensive stage. Limited stage usually means that the cancer is only in one lung and ...
    Related: cancer, cancer treatment, lung, lung cancer, lung disease
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