Finally, a Shakespearean tragic hero will lose their life in the end of the play so the message of what is good in the play can be reestablished. In Shakespeareâs Macbeth, the title figure of the play can be seen as a tragic hero. Early on in the play, Macbeth is established as being of great stature.
Neurons are separated by gaps or spaces known as synapses. As the brainâs chemical messengers, neurotransmitters must find receptors on other neurons in order to transmit the messages they contain. How do drugs affect neurotransmitters? It is helpful for addiction counselors to be familiar with the neurotransmitters affected by drugs. This information is also important in understanding how psychiatric medications are thought to work. There are many neurotransmitters in the brain, but we will focus on the ones that are involved with the reward pathway. Different drugs have differential effects on neurotransmitters. Marijuana and opiates/opioids can activate neurons because their chemical structure emulates that of a natural neurotransmitter. Cocaine and crystal meth, on the other hand, can cause the nerve cells to release much larger than normal amounts of natural neurotransmitters or prevent the usual reabsorption of these brain chemicals. Serotonin is a neurotransmitter that affects mood, memory processing, and cognition.
Neurotransmitters and their Functions. Neurotransmitters are chemicals that facilitate the transmission of nerve impulses from one neuron to another neuron or body cell. Some of the important neurotransmitters are discussed in this article.