The older a person is, the less slow wave 'deep' sleep
Trends in sleep through the evening
REM sleep increases and SWS decreases
Stages of sleep
Awake: beta
Drowsy: alpha
Stage 1: theta
Stage 2:mixed
Stage 3: delta waves
3 types of insomnia
sleep onset: >30 mins to fall asleep
sleep maintainence: wake up a lot at night
early awakening: wake up with <6 hrs of sleep
Issues with pharmacological treatments of insomnia
The body is able to develope drug tolerance, so people begin to take more sleeping pills as the body compensates. Doses can increase over time, and people may be unable to 'fall asleep' w/o the aid of drugs
Dangers of narcolepsy and REM w/o Atonia
Physically dangerous, can cause problems with everyday tasks (narcolepsy)
Narcolepsy
Sleep attacks; fall directly into REM sleep
Sleep Paralysis
Inability to move after awakening
hypnagogic: awake but still dreaming
hypnopomic: hallucinations
REM w/o Atonia
dreaming during REM sleep, but no inhibitions of movement
5 categories of psychoactive drugs
Stimulants
Narcotics
Hallucinogens
Sedatives
Depressant
An example of a DEPRESSANT
alcohol
An example of a SEDATIVE
barbituates
An example of a HALLUCINOGEN
Cannibus (marijuana)
An example of a NARCOTIC
heroine
An example of a STIMULANT
cocaine
Opiates impact on the dopamine system
increases dopamine in the nucleaus accumbens
dopamine binds to the ventral tagmental area and disinhibits dopamine
Cocaine's impact on the dopamine system
prolongs action of dopamine in the nucleus acumbensinhibits the reuptake mechanism