Module 2B: Consciousness Flashcards
EEG = Electroencephalogram
A test that detects electrical
activity in your brain using small,
metal disks (electrodes) attached
to your scalp
Consciousness
The state of being conscious; awareness of one’s own existence,
sensations, thoughts, surroundings, etc
circadian rhythm
biological rhythm that occurs over approximately 24 hours
alpha wave
type of rbrain wave characteristic during the early part of NREM stage 1 sleep, which has fairly low
amplitude and a frequency of 8–12 Hz
theta wave
type of brain wave characteristic of the end of stage 1 NREM sleep, which has a moderately low
amplitude and a frequency of 4–7 Hz
sleep spindle
rapid burst of high frequency brain waves during stage 2 sleep that may be important for
learning and memory
sleep
state marked by relatively low levels of physical activity and reduced sensory awareness that is distinct
from periods of rest that occur during wakefulness
delta wave
type of brain wave characteristic during stage 3 NREM sleep, which has a high amplitude and low
frequency of less than 3 Hz
suprachiasmatic nucleus (SCN)
area of the hypothalamus in which the body’s biological clock is located
narcolepsy
sleep disorder in which the sufferer cannot resist falling to sleep at inopportune times
sleep apnea
sleep disorder defined by episodes during which breathing stops during sleep
manifest content
storyline of events that occur during a dream, per Sigmund Freud’s view of the function of
dreams
latent content
hidden meaning of a dream, per Sigmund Freud’s view of the function of dreams
non-REM (NREM)
period of sleep outside periods of rapid eye movement (REM) sleep
sleep rebound
sleep-deprived individuals will experience shorter sleep latencies during subsequent
opportunities for sleep
