5.4 Chapter Summary Flashcards

1
Q

consciousness

A
  • our subjective awareness of ourselves and our environment
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2
Q

Rapid eye movement (REM)

A
  • accounts for about 25% of our total sleep time, during which we dream
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3
Q

Non-rapid eye movement

A
  • a deep sleep characterized by very slow brain waves, and is further subdivided into three stages: stages N1, N2, and N3
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4
Q

stimulants

A
  • including caffeine, nicotine, cocaine, and emphetamine, are psychoactive drugs that operate by blocking the reuptake of dopamine, norepinephrine, and serotonin in the synapses of the central nervous system (CNS)
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5
Q

opiods

A
  • including opium, morphine, heroin, and codeine, are chemicals that increase activity in opioid receptor neurons in the brain and in the digestive system, producing euphoria, analgesia, slower breathing, and constipation
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6
Q

hallucinogens

A
  • including cannabis, mescaline, and LSD, are psychoactive drugs that alter sensation and perception and which may create hallucinations
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7
Q

hypnosis

A
  • a trance-like state of consciousness, usually induced by a procedure known as hypnotic induction, which consists of heightened suggestibility, deep relaxation, and intense focus
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8
Q

sensory deprivation

A
  • the intentional reduction of stimuli affecting one or more of the five senses, with the possibility of resulting changes in consciousness
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9
Q

meditation

A
  • techniques in which the individual focuses on something specific, such as an object, a word, or one‘s breathing, with the goal of ignoring external distractions
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