Vocab Ch 4 Flashcards
Consciousness
Ones subjective experience of the world, resulting from brain activity.
Traumatic brain injury (TBI)
Impairments in mental functioning caused by a blow to or very sharp movement of the head.
Change blindness
A failure to notice large changes in ones environment
Subliminal perception
The processing of information by sensory systems without conscious awareness.
Circadian rhythms
Biological patterns that occur at regular intervals as a function of one of day.
REM sleep
The stage of sleep marked by rapid eye movements, paralysis of motor systems, and dreaming.
Insomnia
A disorder characterized by an inability to sleep that causes significant problems in daily living.
Obstructive sleep apnea
A disorder in which a person, while asleep, stops breathing because their throat closes; the condition results in frequent awakenings during the night.
Narcolepsy.
A sleep disorder in which people experience excessive sleepiness during normal waking hours, sometimes going limp and collapsing.
Dreams
Products of an altered state of consciousness in which images and fantasies are confused with reality.
Activation-synthesis theory
A theory of dreaming; this theory proposes that the brain tries to make sense of random brain activity that occurs during sleep by synthesizing the activity with stored memories.
Hypnosis
A social interaction during which a person, responding to suggestions, experiences changes in memory, perception, and/or voluntary action.
Meditation
A mental procedure that focuses attention on an external object or on a sense of awareness.
Addiction
Drug use that remains compulsive despite its negative consequences.
Stimulants
Increase behavioral and mental activity ; amphetamines, methamphetamine, Cochin, nicotine, caffeine. Neurotransmitter systems: dopamine, noroepinephrine, acetylcholine( nicotine)
