Module 20 Notes

Module 20 Notes - Amphetamines drugs that stimulate neural...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Module 20 Notes Psychoactive drug- a chemical substance that alters perceptions and mood Tolerance- the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug’s effect Withdrawal- the discomfort and distress that follow discontinuing the use of an addictive drug Physical dependence- a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued Psychological dependence- a psychological need to use a drug, such as to relive negative emotions Addiction- compulsive drug craving and use Barbiturates- drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment Opiates- opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety Stimulants- drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine and Ecstasy) that excite neural activity and speed up body functions
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Amphetamines- drugs that stimulate neural activity, causing speeded-up body functions and associates energy and mood changes. Methamphetamines- a powerfully addictive drug that stimulates the central nervous system, with speeded- up body functions and associated energy and mood changes; over time, appears to reduce baseline dopamine levels Ecstasy (MDMA)- synthetic stimulant and mild hallucinogen. Produces euphoria and social intimacy, but with short-term health risks and longer-term harm to serotonin-producing neurons and to mood and cognition. Hallucinogens- psychedelic (mind-manifesting) drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input LSD- a powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide) THC- the major active ingredient in marijuana; triggers a variety of effects including mild hallucinations...
View Full Document

{[ snackBarMessage ]}

Page1 / 2

Module 20 Notes - Amphetamines drugs that stimulate neural...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online