Pyschology

In: Philosophy and Psychology

Submitted By vashvts
Words 1042
Pages 5
1. Substances alter a person’s state of mind in various ways. Depressants tend to slow the central nervous system giving the user a sense of relaxation. Examples of depressants include alcohol and antianxiety medication. Since the substance slows the nervous system it is normally easy to recognize because of the impaired motor reflexes. Stimulants are the second type of substance. This substance increases the nervous system’s activity. Examples include cocaine and crystal meth. This type of stimulant gives feelings of euphoria and alertness. Since cocaine also can block the reuptake of our natural neurotransmitters, the use of this drug sometimes can lead to extreme highs when the user is taking and lows when the user if off of it. As someone who has witnessed a cocaine addiction in a friend, I first recognized it by the sudden change of mood that would happen when the person would use. Opiates are the next type of substance. Opiates work by numbing pain and elevating moods. They tend to trick the neurotransmitter to thinking they are natural endorphins. Eventually the brain will stop producing these endorphins naturally. This is one of the reasons why addiction is common with opiates. Signs of opiate addiction are normally physical such as weight loss or weigh gain, track marks, and bad outward appearances. The last type of substance is hallucinogens. This type of substance is known to create sensory or perceptual distortions. The science behind the effects of these substances is very complex as they tend to affect many different neurotransmitters. They act on the serotonin system which can cause the complex types of hallucinations. Some of the signs of hallucinogen abuse include dilated pupils, extreme sweeting and warm body temperature.

2. A. ) Freud’s theory of the unconscious refers to a hidden part of the human mind that contain things…...

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