Lecture 8 Flashcards
Define consciousness
a persons objective experience of the world and mind
how did freud define the unconscious
dynamic unconscious: active system that encompases a lifetime hidden memeories, deepest instinct and desires and an inner struggle to control these forces
What is repression
a mental process that removes unacceptable thoughts and memories from consciousness
What is cognitive unconsciousness
the mental process that gives rise to our thoughts and feelings/decisions
what is subliminal perception
a thought or behavior that is influences by stimuli that a person cannot consciously report by perceiving
what is circadian rhythen
a biological rhythm with a period of about 24 hours
can be impacted by genetics, stress, illness, exercise, drugs
internal desynchronization
beta waves
alert, awake
alpha waves
relaxation, drowsy
what are the stages of sleep
- awake (beta)
- drowsy/relaxed (alpha)
- stage 1 sleep (theta waves)
- Stage 4 sleep (sleep spindles, k complexes)
- stage 3/stage 4 sleep (delta waves)
- REM sleep (sawtooth waves, fast random)
what is insomnia
you may have trouble falling asleep, staying asleep, or getting good quality sleep
what is sleep apnea
breathing repeatedly stops and starts
what is somnambulism
sleep walking, occurs in 3/4 stage of sleep, safe to wake them
what is narcolepsy
degradation of hypothalamus neurons
night/sleep terrors
bad dreams
REM behavior disorder
you physically act out your dreams unknowingly while you’re asleep
What is a psychoactive drug
a chemical that influences consciousness or behavior by altering the brain’s chemical message system
what is drug tolerance
the person has to take more to have the same effect
what is drug dependance
maladaptive pattern of substance use manifested by such symptoms as repeated substance ingestion despite physical or psychological problems caused by the substance, ingesting larger amounts of the substance over longer periods of time, unsuccessful efforts to limit substance use, tolerance to the substance’s effects, and physiologic withdrawal (DSM-IV).
what is psychological dependance
a strong desire to return
to the drug even when
physical symptoms are gone.
what is drug abuse
a problematic pattern of substance use that
results in poor role functioning, interpersonal difficulties, recurrent substance use in physically hazardous situations, or repeated legal difficulties
what are depressants
substances that reduce
the activity of the central nervous system
what are stimulants
substances that excite the
central nervous system, heightening arousal
and activity levels
what are narcotics/opiates
highly addictive drugs
derived from opium that relieve pain (heroin, morphine, methadone, codeine).
endorphins/endogenous opiates
natural neurotransmitters that have a similar structure to opiates and that appear to play a role in how the brain copes internally with pain and stress.
what is a hallucinogen
drugs that alter sensation and perception and often cause visual and auditory hallucinations (LSD, mescaline, psilocybin, PCP,
ketamine).
what is marijuana
the leaves and buds of the
hemp plant that produces a mildly
hallucinogenic intoxication (THC is the active ingedient)
