Exam 5
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Records overall activity in the brain
Electoencephalography (EEG)
Electoencephalography (EEG)
Records overall activity in the brain
evoked potentials
The EEG responses to a stimulus
The EEG responses to a stimulus
evoked potentials
What is Electromyography or EMG
tool used to measure muscle activity and eye movement
tool used to measure muscle activity and eye movement
Electromyography or EMG
What is a polysomnogram
combination of measured brain, muscle, and eye activity during sleep
combination of measured brain, muscle, and eye activity during sleep
polysomnogram
Sleep involves specific patterns of BLANK
Brain activity
Is the brain active in both sleeping and awake?
Yes, but the brain patterns change
Beta Activity
Irregular, high-frequency but low-amplitude brain waves of around 13–30 cycles per second, associated with waking.
Irregular, high-frequency but low-amplitude brain waves of around 13–30 cycles per second, associated with waking.
Beta Activity
Beta activity is associated with what state?
Alert waking state
The alert waking state is associated with what level of brain activity?
Beta Activity
Alpha activity
A pattern of brain electrical activity that occurs with a rhythm of 8–13 cycles per second. Indicates relaxed wakefulness with eyes closed.
The relaxed but awake state is associated with what level of brain activity?
Alpha activity
Alpha activity is associated with what state?
Relaxed but awake state
Theta wave activity
A pattern of brain electrical activity that occurs with a rhythm of 3–7 cycles per second, associated with Stage 1 sleep.
Theta wave activity is associated with what state?
Waking to sleep
The waking to sleep state is associated with what level of brain activity?
Theta wave activity
Stage 1 sleep
Theta wave activity. Lasts only about 10 minutes.
Theta wave activity. Lasts only about 10 minutes. What stage of sleep is this?
Stage 1
Activity changes after stage 1 sleep cause distinct patterns to interupt theta waves. What are these patterns called?
Sleep spindles
What are sleep spindles?
Distinct patters that interupt theta waves in stage 1 sleep