Effects of neurotransmission on Human behavior

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Clarke Montell
Mind Map by Clarke Montell, updated more than 1 year ago More Less
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Effects of neurotransmission on Human behavior
  1. Clarke Montell
    1. Serotonin: One of the best researched neurotransmitters, it is involved in emotion, sleep, and mental well being.

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      1. Now why was this? Testing determined that there were increased level of serotonin, specifically in the Hypothalamus and Frontal Cortex. It can be concluded that sensory deprivation triggered this release of serotonin.
        1. Study on how sleep deprivation affects the brain in regards to neurotransmission, looking specifically at serotonin.
          1. Kasamatsu & Hirai (1999)
            1. The Target Population was a group of Monks on a 72 hour pilgrimage to a mountain. The Monks were not allowed to speak, eat or drink, they were exposed to cold late autumn weather, after 48 hours, the Monks started seeing hallucinations of ancestors and feeling their presence.
              1. This study is a prime example of how human behavior is effected by neurotransmission, in this case being the difference in serotonin levels causing hallucinations.
                1. These hallucinations can account for different behaviors in humans due to the fact that when hallucinating, external stimulus is being given to the brain but reality is distorted, hallucinations being sensations that appear real but are created by your mind can make people act irrationally, talk to inanimate things, become paranoid along with many other symptoms.
              2. Thesis: Neurtransmission is the reason we behave how we behave, affecting emotions, pain perception, memory, perception of reality and many other things.
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                    1. Must be understood that different neurotransmitters affect the body and brain differently, resulting in the variation of effects produced by neurotransmission.

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                      1. Neurotransmission: the transmission of nerve impulses across a synapse.
                      2. Dopamine is involved in movement, memory, pleasurable reward behavior, cognition attention as well as others things
                        1. Stydy: Hietala 1996
                          1. This lead to the conclusion that it was indeed a change in dopamine levels which caused schizophrenia; a psychotic disorder marked by severely impaired thinking, emotions, and behaviors.
                            1. Other studies have supported this and have lead to the conclusion that schizophrenia is directly related to abnormally high levels of dopamine.
                              1. This means that schizophrenic behavior is most often in concurrence with elevated dopamine levels and excess neurotransmission in this case by dopamine can cause psychotic behavior.
                            2. Uptake of flurodopa, a radioactive compound was measured and scanned by a PET scan for 7 schizophrenic patients and 8 healthy people. The fluorodopa influx constant increased in schizophrenic patients. Alterations in presynaptic dopamine function make people more inclined to have schizophrenia compared to the control group.
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