Outline and evaluate neural and hormonal mechanisms in aggression. There are two main biological explanations to aggression‚ neural and hormonal. The neural explanation is the serotonin and dopamine neurotransmitters and how they affect our aggression; the hormonal mechanisms are the testosterone and cortisol chemicals. Testosterone is a hormone that is more concentrated in men than in women as it is a male sex hormone‚ it is thought to influence aggression from a young age onwards‚ due to its actions
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with and take care of the patients. The purpose of this paper is to investigate the literature regarding this disease. The paper discusses what Parkinson’s disease is and what the causes and effects are. Furthermore‚ The paper contends that lack of dopamine‚ genetic and environmental factors can lead to Parkinson’s disease and that the effects of disease include physical‚ emotional and social effects. Finally‚ the writer concludes with some suggested treatment for Parkinson’s disease.
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chronic progressive movement disorder. It happens when nerve cells in the brain don’t produce enough of a brain chemical called dopamine. Parkinson’s disease was founded by a doctor in London in1817 name James Parkinson. He wrote a book called the “shaking palsy” that he researched in his neighborhood to find out where the disease came from Weintraub‚ D. (2008)” Dopamine and shaking palsy in “Parkinson’s disease” Practical Neurology 80(4);110-125‚ 2011 Parkinson’s disease sign and symptoms differ
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ten to twelve million Americans are affected by depression‚ with the condition twice as common in females than in males.(Ho‚ 2002) We all have chemical signals that are called neurotransmitters and they come in a variety of forms like Serotonin‚ Dopamine‚ and Norepinephrine. All three of these neurotransmitters play a very important role in maintaining normal mood‚ motivation and concentration. What is Serotonin? Serotonin acts as a neurotransmitter‚ a type of chemical that helps relay signals
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experiments conducted‚ on animal subjects which led to a “neuroleptic effect”. Further dramatic change occurs in the late 1960s‚ through further investigation it becomes conclusive that all previously known antipsychotics‚ block dopamine receptors‚ particularly postsynaptic dopamine (D2) receptors. Within next thirty years marked synthesizing and application of classic
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brain barrier and activation of microglia‚ which are the macrophages part of the central nervous system’s immune defense. The downside of microglial activation is chronic inflammation that is the fundamental process in contributing to the death of dopamine producing neurons‚ a characteristic destructive process (Qian‚ Flood‚
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PD [1]. For general understanding the Parkinson’s disease is treated as disorder of the central nervous system which is the result of loss of cells from various parts of the brain. These cells also include substantia nigra cells that produce dopamine. Dopamine plays a vital role in the coordination of movement. It acts as a chemical messenger for transmitting signals within the brain. Due to the loss of these cells‚ patients suffer from movement
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Task: Discuss two or more biological explanations for the development of schizophrenia. One biological explanation for schizophrenia is genetics. This theory states that a person’s genes determine whether they develop schizophrenia or not. Family studies‚ twin studies and adoption studies have explored the roles of genes in the development of sz. Gottesman conducted a family study and he identified that the closer someone is genetically to a person with sz‚ the more likely to develop sz. For example
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This probably sounds familiar: You’re out to dinner with friends‚ and everything’s fun‚ until you get that itch. It’s been 20 minutes‚ and you really want to check Facebook‚ or Twitter‚ or Foursquare or email. Forget about wanting; this is needing. You finally give in to the urge and sneakily check your phone under the table -- or fake an urgent visit to the bathroom‚ where you’ll take a hit of the Internet while huddling in a stall.Anecdotally‚ our Internet use seems to have spawned real addictions
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DEFINE | ANSWER | psychology | scientific investigation of physical and mental behavior | experimental method | used to text predictions derived from theory | basic science | accumulation of knowledge for knowledge sake (describe‚ predict‚ and explain behavior) | applied science | application of knowledge to solve practical problems (modify behaviour). | Empiricism | knowledge based on observation | Scientific Method | rules for observation‚ experimentation‚ and measurement | Skepticism
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