Chapter 5 -Consciousness Flashcards
(47 cards)
What is the frequency of Theta Waves?
4 to 7 cycles per second
Light Sleep
What is the frequency of Beta Waves?
13-24 cycles per second
Normal waking thought, alert problem solving.
Delta waves are associated with?
Sleeping Deeply.
Less than 4 cycles per second
How long does it take to readjust after flying across several time zones?
One day per each time zone crossed.
What structure in the brain appears to play a central role in regulating our biological clock?
Suprachiasmatic Nucleus (SCN) in the hypothalamus.
What best describes muscle activity during sleep?
It is at its lowest during REM sleep
Who developed the activation synthesis view of dreaming?
Robert McCarley and J. Allan Hobson.
Who developed the Problem Solving model of dreaming?
Rosalind Cartwright.
Who is the 18th century physician that popularized the term “hypnosis”?
James Braid.
According to research on hypnotic suspectability, what percentage of the population does not respond well to hypnosis.
Between 10-20%.
What is consciousness?
The awareness of internal and external stimuli, including awareness of a self and your thoughts.
What are biological rhythms?
Periodic fluctuations in physiological functions tied to planetary rhythms.
What are circadian rhythms?
24 hour cycles that are influential in the regulation of sleep.
What is the activation-synthesis model of dreams propose?
Dreams are side effects of the neural activation that produces waking-like brain waves during REM sleep.
Explain Non-Rem sleep (stages 1-4)
Marked by an absence of rapid eye movements
Little to no dreaming
Varied EEG activity.
Explain REM Sleep
Deep stage of sleep marked by rapid eye movements
High-Frequency Brain Waves
Dreaming
What are siesta cultures?
Napping practices found in tropical regions.
What brain waves represent ordinary wakefulness?
Fast, low amplitude beta waves.
What brainwaves represent relaxed wakefulness?
Rhythmic alpha waves.
Stage 1 sleep involves what characteristic of brainwaves?
Small, irregular brain wave s
Stage 2 sleep involves the appearance or what?
Spindle shaped waves called sleep spindles.
Stage 3-4 Sleep involves what kind of brainwaves?
Appearance of large and slow delta waves
What are the wave characteristics of REM sleep?
Similar to ordinary wakefulness.
Sleep Deprivation of REM and slow wave sleep leads to?
Increased attempts to shift into these stages and increased time in these stages after deprivation ends.