Consciousness Flashcards
The awareness of internal and external stimuli
Consciousness
device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp
electroencephalograph (EEG)
periodic fluctuations in physiological functioning
biological rhythms
24-hour biological cycles found in humans and many other species
circadian rhythm
records muscular activity and tension
electromyograph
records eye movements
electrooculograph
records contractions of the heart
electrocardiograph
stage 1 of sleep
light sleep, lasts 10-12 minutes
stage 2 of sleep
light sleep that lasts 10-25 minutes
stage 3 of sleep
deep sleep; characterized by delta waves
a deep stage of sleep marked by rapid eye movements, high-frequency brain waves, and dreaming
REM
chronic problems in getting adequate sleep that results in daytime fatigue and impaired functioning
insomnia
a disease marked by sudden and irresistible onsets of sleep during normal waking periods
narcolepsy
involves frequent, reflexive gasping for air that awakens a person and disrupts sleep
sleep apnea
sleepwalking
somnambulism