Effects of Neurotransmission on Human

Nerve cells, called neurons, are one of the building blocks of behavior.

Neuron
Neuron

The neurons send electrochemical messages to the brain so that people can respond to stimuli – either from the environment or from internal changes in the body. The method by which these messages are sent is called neurotransmission. When an electrical impulse travels down the body, or axon, of the neuron, it releases neurotransmitters which then cross the gap between two neurons. This gap is called a synapse.

Neurotransmitters are the body’s natural chemical messengers which transmit information from one neuron to another.
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Neurotransmittershave been shown to have a range of different effects on human behavior. In fact, neurotransmission underlies behavior as varied as mood, memory, sexual arousal, and mental illness. The table below, which highlights just a few neurotransmitters, gives an idea of the variety of behaviors which are influenced by these neurochemcial.



Neurotransmitter
Effect
Acetylcholine
Muscle contraction, and a role in the development of memory in the hippocampus
Dopamine
Voluntary movement, learning, and feelings of pleasure
Norepinephrine (noradrenaline)
Arousal, alertness, and stimulation of the sympathetic nervous system
Serotonin
Sleep, arousal levels, and emotion

citation
Psychology Course Companion written by John Crane Jette Hannibal
http://sakshat.amrita.ac.in/VirtualLab/images/neuron.png
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Biological level of analysis
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