Ch 5 Sect 2: Sleep and Dreams

Circadian Rythems— Include a sequence of bodily changes, such as… 24 hour day Most studied is sleep-wake cycle When people are removed from cues that signal day/night cycle goes 25 hours

Stages of Sleep Defined in terms of brain-wave patterns (EEG) 4 brain wave patters Beta Waves— Alpha Waves— Theta Waves— Delta Waves-- 5 stages of sleep— REM Sleep During 8 hours of sleep we go through stages 5 times

Sleep Stages

Sleep Study

Why do we Sleep? Need to revive body and build up resistance to infection Recover from stress Randy Gardner REM deprived show REM-rebound

Dreams REM is when dreams occur Some seem real and other do not We may dream every time in REM People dream in real time A lot are simple extensions from the day Freud said dreams reflect persons wishes and urges Symbolic dreams Biopsychological

Sleep Problems Insomnia— Worry and have racing minds Can make it worse… Sleeping pills Techinques—

Nightmares and terrors Common ones… Middle ages work of demons Upsetting events Night Terrors—Night Terrors Night terrors occur during deep sleep and nightmares REM

Sleep walking Many children do it Don’t remember when they wake up Accident prone

Sleep Apnea Interruption in breathing These people don’t start breathing again Air passages are blocked 10 million people Leads to…

Narcolepsy People suddenly fall asleep no matter time or where they are Treatments Can occur when driving or operating machinery No one knows cause Believed to be genetic disorder of REM sleep functioning

Ch.5 Sect.4: Drugs and Consciousness

Depressants Depressants— Alcohol widely used High doses can put a person to sleep Intoxication— Judgment affected Alcohol+car=accident Excuse for behavior Addiction Long term problems…

Narcotics Narcotics— Morphine Heroin High doses of heroin… Withdrawal symptoms…

Stimulants Stimulants— Nicotine found in tobacco Spurs release of… Reduces appetite Cigarette smoking is as addictive as heroin! Withdrawal Lung cancer Heart disease… Secondhand smoke

Amphetamines Amphetamines—Amphetamines Pills, injected High for days Can cause… Hallucination— Delusions—

Cocaine Coca plant which grows in tropics Produces Symptoms of use Bath Salts

Hallucinogens Marijuana produced from… Hashish Impairs… Effects… LSD also called acid Effects… Side effects

Treatments Detoxification— Maintenance Programs— Counseling— Support Groups—