Knowledge Dis. #2

• synchronized EEG of low frequency, high amplitude
• night terrors
• no sleep paralysis (sleep walking)
• lower heart and respiration rate

• desynchronized EEG, similar to when awake
• eyes move rapidly
• dreams occur
• sleep paralysis

The older a person is, the less slow wave 'deep' sleep

REM sleep increases and SWS decreases

• Awake: beta
• Drowsy: alpha
• Stage 1: theta
• Stage 2:mixed
• Stage 3: delta waves

• sleep onset: >30 mins to fall asleep
• sleep maintainence: wake up a lot at night
• early awakening: wake up with <6 hrs of sleep

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

Physically dangerous, can cause problems with everyday tasks (narcolepsy)

Sleep attacks; fall directly into REM sleep

• Inability to move after awakening
• hypnagogic: awake but still dreaming
• hypnopomic: hallucinations

dreaming during REM sleep, but no inhibitions of movement

• Stimulants
• Narcotics
• Hallucinogens
• Sedatives
• Depressant

alcohol

barbituates

Cannibus (marijuana)

heroine

cocaine

• increases dopamine in the nucleaus accumbens
• dopamine binds to the ventral tagmental area and disinhibits dopamine

• prolongs action of dopamine in the nucleus acumbens
• inhibits the reuptake mechanism

• increases dopamine in the nucleus accumbens
• causes spontaneous dopamine release
• inhibit reuptake of dopamine

• lack of control
• preoccupation that affects normal life
• inability to stop despite consequences

• drug priming
• stress
• enviromental cues