chapter7

=Chapter 7-Altered States of Consciousness= =Chapter 7, Version 2=

Summary
.....This section also reviews the different stages of sleep. Including Stage 1, the lightest level of sleep, Stage 2 your brain waves shift from a low amplitude, high frequency to high amplitude,low frequency, Stage 3 large amplitude delta waves begin to sweep your brain every second,**Stage 4 deepest sleep** of all large regular delta waves occuring more than 50 times indicating you are in the deepest sleep. **REM sleep** active type of sleep charaterized by rapid eye movement.
 * Chapter 7** reviews over the sleep disorders including insomnia,sleep apnea,narcolepsy,nightmares and night terrors, and sleepwalking and sleep talking.In this section it also states that many researchers believe sleep is a type of hibernation nessary to conserve energy..Though some stated that they believe sleep is a method to clear the mind.

____**Section 1**____

Key Terms

 * Consciousness**-State of awareness including feelings,sensations,and ideas.
 * REM Sleep**- Rapid Eye Movement high level of brain activity
 * Circadian rhyhtm**- rythm and activity lasting up to one day.
 * Insomnia**- Not getting enough sleep in order to feel rested the next day.
 * Sleep Apnea**-Sleep disorder person has trouble breathing.
 * Narcolepsy**-Sudden falling asleep or feeling very tired
 * Nightmares**- Unpleasent dreams
 * Night Terrors**- Sleep disruption that occures during stage 4, screaming, panic and confusion
 * Sleepwalking**- walking or carrying out behaviors while asleep

__**Section 2**__

Summary
...Biofeedback used in teaching people control a wide variety of physiological responses .Many studies show that meditation is physically relaxing and can lead to change in behavior
 * Section 2** talks about hypnosis is a form of altered conciousness which people can become highly suggestible to changes in behavior and thought.

Key Terms

 * Hypnosis**- state of consciousness resulting from narrowed focus of attention and characterized by heightened suggestibility.
 * Posthypnotic** suggestion- suggestion made during hypothnosis that influences the participants behavior afterwards.
 * Biofeedback-** learning to control bodily states with the help of specialized machines.
 * Meditation**-focusing attention to clear ones mind and produce relaxation

__**Section 3**__

Summary
...Alcohol,depressent effects the brains normal functions impares speech and vision and train of thought Drug abusers are people who regularly use illegal drugs or over use legal drugs as well
 * Section 3** reviews over many drugs taken. Marijuana, psychoactive drug, which verys from person to person, Hallucinogens. main effect produce hallucinations this effects the brain and your consciousness.LSD sythetic substance more potent and most extensively studied hallucinogen

Key Terms

 * Psychoactive drugs**- chemicals that affect the nervous system and result in altured conciousness
 * Marijuana**- Dried leaves flowers and indian hemp produce altered state of consciousness when smoked or ingested
 * Hallucinogens**- drugs that often produce hallucinations
 * LSD**- potent psychedelic drug that produces distortions of perception and thought