"Dopamine" Essays and Research Papers

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Dopamine Dopamine is simply a messenger in the brain. It is released by people themselves, their activities, and certain drugs. The rationale of this research is to resolve how this neurotransmitter changes with age, and to see how dopamine affects the brain, as well as the body. This neurotransmitter can greatly affect your mindset of some activities. A psychology professor at Vanderbilt University, Steve Zald, conducted a study this year. He used PET scans on people that were so-called “thrill...

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The Effects of Dopamine on the Body

The Effect of Dopamine on the Mind and Body Dopamine is a neurotransmitter, one very important to the body. A neurotransmitter is a chemical that is used to send messages through the body through nerve cells. Dopamine is a neurotransmitter that affects movement, behavior, learning, emotions, and feelings, most commonly pleasure. Dopamine is produced mainly in the brain, and is released at certain times to help with the body’s emotional and physical functions. Dopamine works in different areas...

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outdated gun laws

explanation for why certain people tend to take dangerous risk. Neurotransmitter dopamine is a chemical that causes one to feel good. In a sense dopamine is a drug, it’s responsible for the high we feel when we engage in something daring. In the risk taker's brain such as a daredevils brain, are more saturated with the chemical, causing them to keep taking risks and chasing the next high. Dopamine drives people into taking risk and they can also control the fear by getting use to...

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Critique of the Dopamine Hypothesis of Schizophrenia

Critique of the Dopamine Hypothesis of Schizophrenia Schizophrenia is a serious and chronic mental disorder that affects 1% of the world’s population. It is characterized by a range of striking disturbances in mental functioning that can be grouped into both positive and negative symptoms, and also cognitive and psychosocial dysfunctions (Hales, Yudofsky, & Gabbard, 2008) (Abi-Dargham, 2004) (DeLeon, Patel, & Crismon, 2004). The aetiology of schizophrenia is yet to be concluded and while there are...

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Chemical Imbalance and Depression

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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Biological Explanations of Schizophrenia

theory on Schizophrenia is a determinism theory which states that Schizophrenia is caused by our genetics and things that are involved in our bodies. The biological theory states that the cause of Schizophrenia is due to issues such as our genes, and dopamine levels, and therefore it can be cured by looking at these issues. The first biological explanation I will look at is the genetic theory of Schizophrenia. There is a 1% chance of someone having schizophrenia in general, however this figure increases...

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Neurological Disorder Parkinson s Disea

million people in the United States…” alone (Landro, 2014). It is a debilitating disease that leads to “…degeneration of the brain structures called basal ganglia…” (Landro, 2014) due to loss of neurons that produce brain chemicals, specifically dopamine. The basal ganglia is the part of the brain located at the base of the forebrain, that controls movement, certain types of learning, routine behaviors, eye movements, cognition and emotion. Resulting PD symptoms can range in scope and severity and...

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Neurotransmitter Switching in Adult Brain

changing the neurotransmitters in certain neurons of their hypothalamus (an area of the brain that produces hormones that control body temperature, hunger, moods, sleep, etc.) from dopamine to somatostatin. According to Dulcis’ report, short-day exposure has increased the number of dopaminergic neurons and the release of dopamine (a neurotransmitter that has many functions in the brain, and one of them is to signal positive or reward experiences) in rat’s hypothalamic nuclei, whereas long-day exposure...

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Parkinson Disease

Parkinson disease. Parkinsonism is any condition that causes a combination of the movement abnormalities seen in Parkinson's disease; such as tremor, slow movement, impaired speech or muscle stiffness. Especially seen in results from the loss of dopamine-containing nerve cells. 2. What is Parkinson’s Disease? (7 points) Parkinson disease is a progressive degenerative disorder of the basal ganglia that results in an eventual loss of coordination and control of involuntary motor movement. 3...

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sensitivity of the dopamine system is one biological explanation for the imitation, maintenance and relapse of addictive behaviours (see below), and so it would make sense for researchers to look for genes that are responsible for causing particularly sensitive or insensitive dopamine systems. One such gene is called the DRD2 gene (or dopamine receptor density 2 gene). The DRD2 gene codes for the number of dopamine receptors available in the mesolimbic dopamine system. A person with fewer dopamine receptors...

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