Chapter 5 Flashcards
Electroencephalograph (EEG)
A device that monitors the elctrical activity of the brain over time by means of recording electrodes attached to surface of scalp.
Alpha Waves
8-12 CPS Deep relaxation, blank mind, meditation.
Beta Waves
13-24 CPS Normal walking thought, alert problem solving.
Theta Waves
Light Sleep
Delta Waves
Deep sleep
Biological rhythms
periodic fluctuations in physiological functioning.
Circadian rhythms
the 24 hour biological cycles found in humans and many other species
Slow Wave Sleep
consists of sleep stages 3 and 4, during which high-amplitude, low-frequency delta waves become prominent in EEG recordings
REM Sleep
Rapid Eye Movement Sleep. High Frequency, Low Amplitude Brain waves, and Vivid Dreaming.
Ascending Reticular Activating System
Fibers in Reticular formation that influence Sleep and rising from Sleep.
Memory Consolidation
REM firms up learning that takes place during the day.
Insomnia
Chronic problems in getting adequate sleep. Most common sleep disorder.
Narcolepsy
Disease causing sudden onsets of sleep during waking periods.
Sleep Apnea
Frequent reflexive gasping for air that awakens a person and disrupts sleep.
Nightmares
Anxiety arousing dreams that lead to awakening, usually from REM sleep.
Night Terrors
Abrupt awakenings from NREM sleep accompanied by intense autonomic arousal and feeling of Panic. Bolt up with a scream.
Somnambulism
Sleepwalking
REM dreams
more visual, vivid, story like dreams