Sleep Flashcards
electroencephalogram
EEG; instrument that measure heart rate, breathing, and other data while one is sleeping
alpha activity
brain activity during stage 1; short and fast
beta activity
brain activity during wakefulness
Stage 2 Sleep
deep relaxation; mostly theta waves with sleep spindles and K-complex (one peak of large amplitude)
Stage 3 Sleep
slow-wave sleep; very slow respiration and heart rate; very hard to awaken someone from this stage
Stage 3 Sleep
slow-wave sleep; very slow respiration and heart rate; very hard to awaken someone from this stage
lucid dreaming
a person becomes aware that they are dreaming and can start to control their dream
sleep
low levels of physical activity and reduced sensory awareness
sleep
low levels of physical activity and reduced sensory awareness
sleep rebound
someone with lack of sleep will fall asleep much faster than someone with normal sleep
adaptive function of sleep
to hide from predators; to save up energy
cognitive function of sleep
sleep deprivation impairs cognitive function; may be important for memory processing, language learning, and decision making
insomnia
difficulty in going to sleep or staying asleep; may cause anxiety which leads to a feedback loop; can be helped with cognitive behavioral therapy
sleep apnea
breathing stops during sleep which triggers arousal which leads to poor sleep
CPAP
continuous positive airway pressure; treatment for sleep apnea that keeps lungs open
