Ch.6 State of Conciousness Flashcards
What is Melatonin and when/where is it produced?
A chemical involved in sleep. Brain produces this at night.
What is EEG, EOG, and EMG?
EEG - measures brain activity
EOG - measures eye movement
EMG - measure muscle tension
Which 2 of the 3 (EEG, EOG, or EMG) lowers/slows as you get into deeper sleep?
EOG and EMG
Explain what happens during the Awake Stage (brain waves, etc.)
Brain waves are Beta waves, EOG and EMG are high
What makes it hard to sleep during the Awake Stage?
Adrenaline
Explain what happens during the Relaxed Stage (brain waves, etc.)
Brain waves are Alpha waves
Explain what happens in Stage 1 of sleep
Hypnic Jerk - like reflex/twitch, muscle contraction, REM
Explain what happens in Stage 2 of sleep
Burst of different brain activity, sleep spindles
Explain what happens in Stage 3 of sleep
Beginning of Delta waves, deepest stage of sleep
Explain what happens in Stage 4 of sleep
50% of brain waves are Delta waves, deepest stage of sleep
What’s the difference between Stage 3 and Stage 4 of sleep?
At least 50% of brain waves are Delta waves in Stage 4. Stage 3, only beginning of Delta waves
What is REM?
Rapid Eye Movement
Explain REM
Eyes are moving quickly, spend and hour and a half in REM, heart beats irregularly, blood pressure increases, breathing fluctuates
Why is REM known as “Paradoxical Sleep”?
Because eye movement and brain activity looks like when you’re awake
When does sleep walking occur? (Stage? REM?)
During Stage 3 and 4 of sleep
Explain the REM Rebound Effect
When you deprive someone of dreaming/sleeping, multiple (more than one) nights in a row, they will then get to REM more quickly and spend much more time in REM