states of consciousness pt 1 Flashcards
what our brain activity is dominated by while we sleep
beta wave
produced during the early portion of stage 1 sleep.
alpha wave
a theoretical repository of information he believed to be shared by everyone. certain symbols in dreams reflected universal archetypes with meanings that are similar for all people regardless of culture or location.
collective unconsciousness
have the lowest frequency and highest amplitude of our sleep brain wave patterns.
delta wave
a discipline that studies how universal patterns of behavior and cognitive processes have evolved over time as a result of natural selection. Variations and adaptations in cognition and behavior make individuals more or less successful in reproducing and passing their genes to their offspring.
evolutionary psychology
a very high amplitude pattern of brain activity that may in some cars occur in response to environmental stimuli.
K-complex
refers to the hidden meaning of a dream. For instance, if a woman dreams about being chased by a snake, Freud might have argued that this represents the woman’s fear of sexual intimacy, with the snake serving as a symbol of a man’s penis.
latent content
dreams in which certain aspects of wakefulness are maintained during a dream state. During this event, a person becomes aware of the fact that they are dreaming, and as such, they can control the dream’s content.
lucid dream
the actual content, or storyline, of a dream
manifest content
this sleep is subdivided into three stages distinguished from each other and from wakefulness by characteristic patterns of brain waves. As we begin to fall asleep, we enter this type of sleep, and brain wave patterns decrease in frequency and increase in amplitude
non-REM (NREM)
characterized by darting movements of the eyes under closed eyelids. Brain waves during this type of sleep appear very similar to brain waves during wakefulness.
rapid eye movement (REM) sleep
refers to the fact that a sleep-deprived individual will fall asleep more quickly during subsequent opportunities for sleep.
sleep rebound
a rapid burst of higher frequency brain waves that may be important for learning and memory.
sleep spindle
(first stage of NREM sleep) a transitional phase that occurs between wakefulness and sleep, the period during which we drift off to sleep. During this time, there is a slowdown in both the rates of respiration and heartbeat. In addition, this sleep involves a marked decrease in both overall muscle tension and core body temperature. It is relatively easy to wake someone from this type of sleep; in fact, people often report that they have not been asleep if they are awoken during this type of sleep.
stage 1 sleep
(second stage of NREM sleep) when the body goes into a state of deep relaxation. Theta waves still dominate the activity of the brain, but they are interrupted by brief bursts of activity known as sleep spindles.
stage 2 sleep