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Free research papers and essays on topics related to: neurotransmitter

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  • Aging Theories - 1,709 words
    Aging Theories This report outlines the main theories of how the process of aging works. Since researchers have not discovered a universally-accepted theory of aging, the theories discussed are potential explanations of how we age. The likelihood of each hypothesis is considered roughly equal. The different theories discussed focus on the workings of different parts of the body, from the molecular level of DNA mutations and replication, to the organism level of becoming "worn out." Aging is a very complex and gradual process, and its ongoing operation is present to some degree in all individuals. It is a journey to the maturity, as well as to the degeneration of the body. Because aging affec ...
    Related: aging, aging process, cell division, free radicals, gradual
  • 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
  • Alcoholosm - 1,165 words
    ... ven a small head size. Furthermore, FAS children may develop hearing problems, heart defects and physical and behavioural problems. Researchers have also found that some children who were exposed to alcohol during fetal development show only some of the characteristics of FAS, these children are diagnosed as having fetal alcohol effects (FAE). However, both FAS and FAE individuals may have some degree of brain damage (Brent, 1991). Clearly, in addition to physiological, social, and psychological factors which all play a role in contributing to alcoholism, recent studies reveal that there may be a genetic predisposition to alcoholism. More specifically, medical research indicates that alc ...
    Related: natural history, university press, york oxford university press, science, abnormal
  • Alzheimers - 435 words
    ALZHEIMER'S Brian Foster Health March 2, 1999 Alzheimer's disease was first described by Alois Alzheimer. Alois Alzheimer was a German psychiatrist and neuropathologist and he first described it in 1906. The disease was first thought to be a rare condition affecting only young people, and was referred to as presenite dementia. About 10 percent of the United States population over the age of 65 is affected by Alzheimer's disease, and up to 45 percent of those over the age of 85 may have the disease. Up to 2 million people suffer from it, or one percent of the population. During the early stages of the disease, a person forgets daily events, but they can still recall things that happened many ...
    Related: alois alzheimer, book encyclopedia, united states population, drug administration, familiar
  • Alzheimers Disease - 1,259 words
    ... ors leading outside (Alzheimers disease sufferers are known to wander off); clearing floors of clutter; and reducing the contents of closets in order to simplify choices (Alzheimer, 1992, p.17). Costs are typically paid for by the victim's family. Many of these, and other more expensive modifications are introduced in long-term care settings. They help in maintaining the safety and security of the victim as well as reducing their confusion. The patient's and the family's condition should be assessed every six months (Alzheimer, 1992, p.21). In response to constantly changing needs, the aspects of care must be constantly modified. Other issues that usually arise during the care of the pat ...
    Related: alzheimer's disease, alzheimers disease, muscular dystrophy, long term care, alleviating
  • Alzheimers Disease - 1,694 words
    Alzheimer's Disease Alzheimer's Disease With all of the advanced technology that the medical field possesses today, there is still suffering that occurs from incurable diseases. Alzheimer's Disease is one of those incurable diseases that take the lives of many today. This paper will examine this disease thoroughly by looking at its definition, and discussing general information, facts, and figures. The cause of Alzheimer's Disease, and the much thought about question of if it is genetic or not will disputed. Also the symptoms, diagnosis, and treatment of Alzheimer's Disease will be addressed. Included will also be tips on how to make the life of an Alzheimer's patient easier. What is Alzheim ...
    Related: alois alzheimer, alzheimer's disease, alzheimers disease, heart disease, nursing home
  • Attention Deficit Disorder - 1,480 words
    Attention Deficit Disorder Attention Deficit Disorder Five year old Danny is in kindergarten. It is playtime and he hops from chair to chair, swinging his arms and legs restlessly, and then begins to fiddle with the light switches, turning the lights on and off again to everyone's annoyance--all the while talking nonstop. When his teacher encourages him to join a group of other children busy in the playroom, Danny interrupts a game that was already in progress and takes over, causing the other children to complain of his bossiness and drift away to other activities. Even when Danny has the toys to himself, he fidgets aimlessly with them and seems unable to entertain himself quietly. To many, ...
    Related: attention deficit, attention deficit disorder, compulsive disorder, conduct disorder, defiant disorder, deficit, deficit disorder
  • Brain Scans Show Pattern In Violent Behavior - 485 words
    Brain Scans Show Pattern In Violent Behavior Murderers and other people prone to violence have distinct brain patterns that can be scanned and that might be changed with drugs and other therapies, researchers said. Most people's brain can rein in overreaction to emotions such as fear or anger. But in pathologically violent people, this control system gets short-circuited. Several studies have shown this rewiring can be seen in images such as PET(positron emission tomography) scans. Impulsive,affective aggression may be the product of a failure of emotion regulation, University of Wisconsin-Madison psychologist Richard Davidson and colleagues wrote in their report, published in journal scienc ...
    Related: brain, violent behavior, research center, positron emission tomography, adaptive
  • Cell Communication - 1,237 words
    Cell Communication Physiology In the human body there are many parts that work together in order for everything to function properly, but even these parts need to have a way to know what to do. This is where cell communication comes into play. Tiny cells in the body contain astounding networks that allow for this communication. Scientists are discovering why these messages from cell to cell are so efficient, and this could lead to new therapies for diseases. In the past 15 years, scientists have discovered more of the code the cells use for their internal communications. Signal transmission begins when a messenger "docks" temporarily with a specific receptor on a recipient cell. This recepto ...
    Related: cell, communication system, human cells, building blocks, module
  • Chemical Warfare - 1,216 words
    Chemical Warfare Chemical Warfare In this report I will be giving a history of chemical warfare. I will also be showing a chart that includes the Agent, and many other useful information about nerve gas agents which are the main item for chemical warfare. This report will also include the effects of nerve gas on the human body. Chemical Warfare is an extremely dangerous form of warfare. An inquisitive scientist accidentally stumbled upon the engineering of nerve gas agents in the 30s by the name of Gerhard Schrader. He was working on a solution to the troublesome insects in Germany when he stumbled onto a solution for a larger problemhumans. With World War II less than a decade later the Ger ...
    Related: chemical engineering, chemical warfare, chemical weapons, warfare, human body
  • Cocaine Abuse - 909 words
    Cocaine Abuse It is used in offices, parties, on street corners, in homes, and even in schools. With so much widespread abuse, cocaine is in extreme demand. Cocaine abuse has risen 118% since 1990, and continues to rise. Cocaine addiction is easy to understand-- it [cocaine] produces a good feeling, so naturally people would tend to want more of it. The question now though, is how does it produce these feelings, and why is the addiction so strong. By taking a look at cocaine from its entrance into the body, to the end of it's high, and the side effects it produces, the answers to these questions will become clear. When a user takes cocaine the user experiences pleasure beyond what a person u ...
    Related: abuse, cocaine, cocaine addiction, limbic system, side effects
  • Controversy Has Been Revolving Around Cannabis For Decades, But The Plant Itself Has Been In Existence For Centuries The Plan - 1,338 words
    Controversy has been revolving around cannabis for decades, but the plant itself has been in existence for centuries. The plant as a whole has many different uses from medicinal, to recreational, to industrial. Cannabis uses stretch from treating glaucoma patients all the way to making durable clothing. Marijuana, as it is also known, has been in use as far back as ancient times for its psychoactive effects as well as for its great healing properties, and continues to be used to the present day. Many myths and unknowns still exist around this plant despite many years of extensive testing, especially regarding the health and mental aspects of the plants usage. According to research, smoking c ...
    Related: cannabis, controversy, plant, revolving, administrative law
  • Creativity In Dreams - 1,394 words
    Creativity In Dreams Creativity in Dreams The mind at its Creative Peak That which the dream shows is the shadow of such wisdom as exists in man, even if during his waking state he may know nothing about it.. We do not know it because we are fooling away our time with outward and perishing things, and are sleep in regard to that which is real within ourselves.-Paracles The quote on dreams, taken out of the novel by Ann Faraday entitled The Dream Game, sums up the necessity for the dream and the importance of our creativity in the dream state. Not only is it imperative to understand this importance of creativity, but to ask and find out how this process we call dreaming takes place. One can a ...
    Related: creativity, dreams, famous people, final solution, generator
  • 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
  • Depression And Suicide In Adolescents - 1,126 words
    Depression And Suicide In Adolescents Depression and Suicide In Adolescents. As a state of extreme grief and all-encompassing sadness, depression, if left untreated, may lead to a deliberate murder of oneself, suicide. Depression effects individuals with out discriminating against race, gender, or age, yet among adolescents, the incidents of depression have increased significantly. Such increase is the potential cause of the rise of suicide rates amidst adolescents. Therefore it is imperative to treat depression before attempts of suicide are made, for if neglected, such attempts could become successful. Through out the years, adolescence has been regarded as the most confusing and difficult ...
    Related: depression inventory, suicide, suicide rates, social interaction, american medical
  • Diagnosis And Treatment Of Depression In The Elderly - 1,176 words
    Diagnosis and Treatment of Depression in the Elderly Mental disorders are becoming more prevalent in todays society as people add stress and pressure to their daily lives. The elderly population is not eliminated as a candidate for a disorder just because they may be retired. In fact, mental disorders affect 1 in 5 elderly people. One would think that with disorders being rather prevalent in this age group that there would be an abundance of treatment programs, but this is not the case. Because the diagnosis of an individuals mental state is subjective in nature, many troubled people go untreated regularly (summer 1998). Depression in the elderly population is a common occurrence, yet the di ...
    Related: diagnosis, elderly, elderly people, treating depression, treatment of depression, treatment programs
  • Diary Of Dispair - 1,387 words
    Diary Of Dispair A Diary of Despair A Chronicle of Heroin Abuse As Seen through the Eyes Of a Mother Jennifer Bernstein Drug Use and Abuse Professor Santucci 4/26/99 Dear Diary, I think back, and I smile at the little girl I used to have, all pigtails and lace. I can still hear her laughter echoing through the hallways of our home; see her swinging on the swing set in our backyard, her long curly blonde hair, full of pink ribbons, sailing behind her like a pool of melted gold. When the sun hit her face, she just glowed, her green eyes sparkling, her red cheeks, full, lush and alive. What happened to that little girl? Where the hell did I go wrong?!? Why am I sitting in a cold empty room, whe ...
    Related: dear diary, diary, teddy bear, common theme, yesterday
  • Ectasy - 1,400 words
    Ectasy Drugs are a ridiculous way to handle all kinds of things. A recent Teen Magazine survey noted that: 86% of respondents had tried drugs before, 77% of whom are under 16. 63% have tried marijuana, 16% have taken a trip, and 32% have no worries about drugs. That is pretty heavy. The top 3 reasons for taking drugs were: Enjoyment, Dealing with pressure, and Peer Pressure. Do you want to end up in hospital, severely injured or DEAD? Anna Wood was a happy 15-year-old girl who was popular, on top of the world, nearly perfectuntil one Saturday night, when her friends decided to take her out to a rave party. She told her parents she was going go-kart racing and left to an Ultimo nightclub, whe ...
    Related: illegal drug, recent studies, orlando florida, dutch, marijuana
  • Gamma Hydroxybutyrate Ghb - 1,320 words
    Gamma HydroxyButyrate (GHB) Refinance now homeowner even if you have bad credit. 185 loc Gamma HydroxyButyrate (GHB) GHB, or Gamma-Hydroxy Butyric Acid is an intoxicating chemical with medical, recreational, and potentially entheogenic uses. It is a normal component of mammalian metabolism. It is naturally found in every cell in the human body and is most properly considered a nutrient. It is believed to be a neurotransmitter, although it is still unknown as to whether it exhibits all of the properties required to be considered one. GHB was first synthesized about thirty years ago by Dr. H. Laborit. He was a French researcher interested in exploring the effects of GABA (gamma-aminobutyric ac ...
    Related: gamma, growth hormone, blood sugar, health benefits, responsive
  • Irritable Bowel Syndrome - 1,363 words
    Irritable Bowel Syndrome IRRITABLE BOWEL SYNDROME Suffering in Silence Irritable bowel syndrome (IBS), is a common disorder of the intestines that affects nearly one out of five people in the United States. According to the book, Irritable Bowel Syndrome & the Mind-Body-Brain-Gut Connection by William B. Salt II, IBS is the most common functional gastrointestinal disorder. The symptoms include constipation, diarrhea or alternating bouts of both, bloating, abdominal pain and many other problems. Symptoms of irritable bowel syndrome usually begin during adolescence or early adulthood. Altered bowel movements occur over periods of days to weeks. Occasionally, symptoms may be continuous. In a gi ...
    Related: bowel, irritable bowel syndrome, syndrome, johns hopkins, eating habits
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