"Serotonin" Essays and Research Papers

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research studies conducted over the past three decades suggest that central neurotransmitters play a key role in the modulation of aggression in all mammalian species including humans. Specific neurotransmitters systems involved in aggression include serotonin, dopamine, norepinephrine, GABA, and neuropeptides such as vasopressin and oxytocin. Neurotransmitters not only help to execute basic behavioral components but also serve to modulate these preexisting behavioral states by amplifying or reducing...

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schizophrenia abstract

condition and can be associated with hallucinations and delusions. There is no other known cause for these two symptoms, only that it is a neurological problem of sensory loss. The cause for depression is the decreased production of serotonin which in return will drop the serotonin levels in the brain. When a person with schizophrenia has the symptom of anxiety it could be due to a decrease in GABA activity. There are a wide range of treatments to assist with Schizophrenia symptoms, even if the symptoms...

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Neural and Hormonal Mechanisms in Aggression

Aggression in humans has been associated with low levels of serotonin and high levels of dopamine. Usually, serotonin has a calming effect, which inhibits aggression. When serotonin levels are low, this inhibitory effect is removed and people are less able to control their aggressive behaviour. Evidence for the importance of serotonin comes from two main sources. Brown (1982) found that there were low levels of the waste products of serotonin in the cerebrospinal fluid of individuals who are prone...

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Outline And Evaluate Biological Explanations For Aggression

to suggest that the neurotransmitters serotonin and dopamine are linked to aggression, low levels of serotonin and high levels of dopamine. Serotonin is a hormone that makes you happy; it helps to reduce aggression and inhibits responses to emotional stimuli that could potentially lead to aggression. Low levels of aggression are associated with increased susceptibility to impulsive behavior, aggression and violent suicide. Some drugs can alter the serotonin levels in our bodies and cause increased...

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Serotonin: a Classic Neurotransmitter Linked with Many Disorders

Serotonin: A Classic Neurotransmitter Linked with Many Disorders Serotonin has a range of influences on the neurological and physiological function of the body. It has a significant influence on sensitivity to pain, emotionality, and a behavioral response to positive and negative consequences. Serotonin, along with other major neurotransmitters, is also linked with psychotic disorders such as schizophrenia. Serotonin, or HT-5, also has an effect on sleep, eating patterns, and thermoregulation...

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Biological Approach to Depression

has a physical or organic cause. One explanation suggests that some people are simply more genetically inclined to develop depression, as Hecimovic suggested that it was caused by a mutation in the 5-HTT gene, which was responsible for coding for serotonin production, and that this mutation is inherited. Family studies, twin studies and adoption studies have all helped support the role of genetics in the development of depression. Gershon found that if a parent of a child had depression , that the...

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Depression and Its Effects on Motivation

genetic or biologic predisposition interacts with a traumatic life event to trigger a psychological disorder. Biologically, depression causes an imbalance of three important neurotransmitters in the brain. These neurotransmitters are norepinephrine, serotonin, and dopamine. Norepinephrine is a neurotransmitter that affects the amygdala of the brain. This is where attention and responses are controlled. It can directly increase heart rate, blood pressure, the triggering and release of glucose stores, and...

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Chemical Imbalance and Depression

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 from one area of the brain to another. (Bouchez, 2007) In depressed brains, the Serotonin signal had been somehow weakened because of a chemical imbalance in the neurotransmitters. (Mukherjee, 2012) Low Serotonin levels are...

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the immune system and enhance brain chemistry through the release of serotonin and endorphins. Many popular antidepressants target the neurotransmitter serotonin by either blocking its reuptake or increasing production, but one can “self-medicate” using one’s own serotonin supply by watching a funny movie, going to a comedy show or playing a fun game. For the rejected lover or laid off worker, this self-induced boost of serotonin activates a neurochemical reaction that enhances their ability to tolerate...

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Magic Mushroom as a Hallucinogen

cyanescens. Mushrooms are hallucinogens because they contain the chemical Psilocybin. Psilocin, the active metabolite of psilocybin, works with interaction by neurotransmitter receptors on nerve cells in the brain. There, it replicates the affects of serotonin release. This is the same way that hallucinogenic drugs such as LSD, or mescaline affect the brain. Hallucinogens like these forcefully affect the brain, distorting the senses and changing the users perception of time and space. The ritualistic...

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