November 5, 2014 Objective: Students will define the different types of psychoactive drugs in order to prepare notes and discuss the effects of these.

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Presentation transcript:

November 5, 2014 Objective: Students will define the different types of psychoactive drugs in order to prepare notes and discuss the effects of these substances, dependence/addiction, and recovery. Warm Up: Pick up the Syllabus Amendment from the stool. Read and review the new class policies. Homework: Continue work on your Unit 4 Cornell Notes. Due 11/7 by Midnight: CrashCourse Video #8 Reflection Due 11/14 by Midnight: Online Unit 4 Quiz (timed) Due 11/17, in class: Unit 4 Cornell Notes Due 12/02, by Midnight: Unit 5 Development Project

Drugs Altering Consciousness Dependence/Addiction Many psychoactive drugs can be harmful to the body. Psychoactive drugs are particularly dangerous when a person develops an addiction or becomes dependent on the substance. Factors related to addiction: tolerance withdrawal impact on daily life of substance use physical and psychological dependence Psychoactive drugs are chemicals introduced into the body which alter perceptions, mood, and other elements of conscious experience. Click to reveal sidebar and bullets.

In psychological dependence, In physical dependence, a person’s resources for coping with daily life wither as a drug becomes “needed” to relax, socialize, or sleep. In physical dependence, the body has been altered in ways that create cravings for the drug (e.g. to end withdrawal symptoms). Automatic animation.

Dependence on a substance (or activity?) Tolerance: the need to use more to receive the desired effect Withdrawal: the distress experienced when the “high” subsides Using more than intended Persistent, failed attempts to regulate use Much time spent preoccupied with the substance, obtaining it, and recovering Important activities reduced because of use Continued use despite aversive consequences Click to reveal bullets. Tolerance of a drug refers to the diminished psychoactive effects after repeated use. Tolerance feeds addiction because users take increasing amounts of a drug to get the desired effect. Regarding criteria #4 (“Persistent, failed attempts to regulate use): Why is it a sign of dependence when you want or try to cut back? Aren’t addicts in denial and not bothering to try to quit? This may be true in conversations with family, but internally, here’s one way of looking at what’s going on: it's a sign of dependence when you DO try to quit, and fail. If there is "little effort," you don't find out how hard it is to quit, or there may be little effort to quit because there is little need to quit. 

Dependence and Addiction Tolerance: The diminishing effect with regular use of the same dose of a drug Requires the user to take larger and larger doses before experiencing the drug’s effect

Dependence and Addiction Withdrawal: The discomfort and distress that follow discontinuing the use of an addictive drug Dependence: The need for a drug to relieve physical pain or discomfort (physical dependence) or negative thoughts and emotions (psychological dependence)

Dependence and Addiction Compulsive drug craving and use, despite adverse consequences

Depressants Examples: alcohol barbiturates opiates Depressants are chemicals that reduce neural activity and other body functions. Examples: alcohol barbiturates opiates Automatic animation. Inhalants (glue, kerosene, butane) can be classified as depressants as well. Obviously, as students may point out here, these substances have other effects besides a depressant effect. Those effects, coming up…

Depressants Depressants: Drugs that reduce neural activity and slow body functions Types of depressants: Alcohol Barbiturates Opiates

Effects of Alcohol Use Chronic Use: Brain damage Impact on functioning Slow neural processing, reduced sympathetic nervous system activity, and slower thought and physical reaction Reduced memory formation caused by disrupted REM sleep and reduced synapse formation Impaired self-control, impaired judgment, self- monitoring, and inhibition; increased accidents and aggression Click to reveal bullets and example. Expectancy effects, related to the placebo effect: Some of these effects can happen even when people only THINK they are drinking alcohol. See if students can see what is different between these two brains (the shrinkage of brain tissue, increased size of fluid spaces).

Barbiturates Barbiturates are tranquilizers-- drugs that depress central nervous system activity. Examples: Nembutal, Seconal, Amytal Effects: reducing anxiety and inducing sleep Problems: reducing memory, judgment, and concentration; can lead to death if combined with alcohol Click to reveal bullets. Note: there are other drugs qualifying as tranquilizers.

Opiates: Highly Addictive Depressants Opiates depress nervous system activity; this reduces anxiety, and especially reduces pain. High doses of opiates produce euphoria. Opiates work at receptor sites for the body’s natural pain reducers (endorphins). Opiates are chemicals such as morphine and heroin that are made from the opium poppy. Click to reveal bullets.

Stimulants Stimulants are drugs which intensify neural activity and bodily functions. Some physical effects of stimulants: dilated pupils, increased breathing and heart rate, increased blood sugar, decreased appetite Examples of stimulants: Caffeine Nicotine Amphetamines, Methamphetamine Cocaine Ecstasy Click to reveal text.

Stimulants Stimulants: Drugs that excite neural activity and speed up body functions Types of stimulants: Caffeine Nicotine Cocaine Ecstasy (MDMA) Amphetamines Methamphetamines

Caffeine adds energy disrupts sleep for 3-4 hours can lead to withdrawal symptoms if used daily: headaches irritability fatigue difficulty concentrating depression Click to reveal bullets.

Nicotine The main effect of nicotine use is ADDICTION. No animation.

Why do people smoke? Starting to smoke: invited by peers, influenced by culture and media Continuing: positively reinforced by physically stimulating effects Not stopping: after regular use, smokers have difficulty stopping because of withdrawal symptoms such as insomnia, anxiety, distractibility, and irritability Click to reveal bullets. One valid reason people smoke: because they are on fire.

Cocaine What happens next? Euphoria crashes into a state worse than before taking the drug, with agitation, depression, and pain. Users develop tolerance; over time, withdrawal symptoms of cocaine use get worse, and users take more just to feel normal. Cycles of overdose and withdrawal can sometimes bring convulsions, violence, heart attack, and death. Cocaine blocks reuptake (and thus increases levels at the synapse of: dopamine (feels rewarding). serotonin (lifts mood). norepinephrine (provides energy). Effect on consciousness: Euphoria!!! At least for 45 minutes… Click to reveal bullets and sidebar. Cocaine can be inhaled, smoked (crack), or injected. Note: there may be expectancy effects adding to the euphoria, just as the effects of alcohol sometimes appear when people think they are using. The body habituates to cocaine, and then the user is physically and psychologically dependent on increasing amounts.

From 1998 to 2002: Extreme Makeover, Meth Edition Methamphetamine Methamphetamine triggers the sustained release of dopamine, sometimes leading to eight hours of euphoria and energy. What happens next: irritability, insomnia, seizures, hypertension, violence, depression “Meth” addiction can become all-consuming. From 1998 to 2002: Extreme Makeover, Meth Edition Click to reveal bullets. The brain on meth may lose ability to maintain normal levels of dopamine, perhaps permanently.

Ecstasy/MDMA (MethyleneDioxyMethAmphetamine) Ecstasy is a synthetic stimulant that increases dopamine and greatly increases serotonin. Effects on consciousness: euphoria, CNS stimulation, hallucinations, and artificial feeling of social connectedness and intimacy What Happens Next? In the short run, regretted behavior, dehydration, overheating, and high blood pressure. Make it past that, and you might have: damaged serotonin-producing neurons, causing permanently depressed mood disrupted sleep and circadian rhythm impaired memory and slowed thinking suppressed immune system Click to reveal all bullets. The increase in serotonin is caused by the increased release AND blocked reuptake. No wonder it can feel so good…for the moment.

Hallucinogens LSD (lysergic acid diethylamide) Marijuana/THC: What Happens Next? Impaired motor coordination, perceptual ability, and reaction time THC accumulates in the body, increasing the effects of next use Over time, the brain shrinks in areas processing memory and emotion Smoke inhalation damage LSD (lysergic acid diethylamide) LSD and similar drugs interfere with serotonin transmission. This causes hallucinations--images and other “sensations” that didn’t come in through the senses. Marijuana/THC (delta-9-TetraHydroCannabinol) Marijuana binds with brain cannabinoid receptors. Effect on consciousness: amplifies sensations disinhibits impulses euphoric mood lack of ability to sense satiety Click to reveal bullets and sidebar. Hallucinogens are also called psychedelics, which means “mind-manifesting.” Hallucinations possibly are the source of the images in near-death experiences, explained by the effects of oxygen deprivation to the brain. LSD hallucinations are most likely to be visual; the hallucinations in schizophrenia are most likely to be auditory. Marijuana: the affected cannabinoid receptors are located in the frontal lobes, motor cortex, and limbic system Satiety = feeling full. Not sensing this leads to the oft-reported “munchies”

Hallucinogens Hallucinogens: Psychedelic (“mind-manifesting”) drugs that distort perceptions and evoke sensory images in the absence of sensory input Types of hallucinogens: LSD (Lysergic Acid Diethylamide) THC (Delta-9-Tetrahydrocannabinol)

Table 3.5 A Guide to Selected Psychoactive Drugs Myers: Psychology, Tenth Edition Copyright © 2013 by Worth Publishers

Prevalence of Drug Use in the United States Nicotine Use as of 2011: 26 percent of high school dropouts smoke; 6 percent of people with graduate degrees smoke No animation.

What influences can lead to drug use? No animation.

What can turn drug use into dependence? Biological factors: dependence in relatives, thrill-seeking in childhood, genes related to alcohol sensitivity and dependence, and easily disrupted dopamine reward system Psychological factors: seeking gratification, depression, problems forming identity, problems assessing risks and costs Social influences: media glorification, observing peers Click to reveal bullets.

Does recovery require therapy, or require a 12-step group? Are substances inherently addictive and should they be avoided at all cost? Only 10 to 16 percent of people who try most drugs, even morphine and cocaine, become addicted. Does recovery require therapy, or require a 12-step group? In general, recovery rates do not seem to differ much from people quitting on their own. Controversies Related to Addiction Is the “addiction” concept applicable to repeated behaviors that do not involve ingesting chemicals? Labeling it this way can be seen as making excuses for misbehavior such as gambling or sexual affairs. However, many of the dependence criteria are often met, and there may be a dopamine-based chemical process underlying some ‘addictive’ behavior patterns. Click to reveal questions and again to reveal the answer to each question. Instructor: you could have a discussion related to the third subject/circle. Pick a behavior that has been considered by some as an “addiction,” such as gambling, sex, or internet use, and see if it meets each of the diagnostic criteria for dependence. Note: The new diagnostic manual, the DSM V, may define behavioral addictions as disorders.

Experience with Addiction Do you know of anyone who was able to overcome an addiction? What steps did they take to overcome this?

Key Principles of Change 1. The belief that one can change 2. Type of treatment is not as important as one’s commitment to change 3. Duration of treatment is not as important as one’s focus and continued efforts to change 4. Life skills can be instrumental in overcoming addiction 5. Repeated efforts to change 6. Improvement without abstinence counts; all movement in the “right direction” should be accepted and rewarded