Chap 4 retake Flashcards
When light strikes the retina, it signals the suprachiasmatic nucleus to alter production of _________________by the pineal gland.
melatonin
Our inability to fall asleep as early as we had planned, is most likely a result of:
the circadian rythym
Terry has not had a decent night of sleep in over a week. If this sleep deprivation continues, he will become increasingly susceptible to:
viral infections
Which term describes the tendency to maintain a balance, or optimal level, within a biological system?
homeostasis
Ali is aware of his feelings, emotions, and thoughts. He is also aware of his surroundings, the warmth of the sun, and the sound of nearby traffic. Ali is in a state of ________.
conciousness
Which of the following statements about sleep deprivation is false?
can be found to lead to ADHD
Mona lives on the east coast of the USA. She takes an overnight flight to the west coast to visit with family for a month; when she arrives she is fatigued, sluggish, and irritable. For the next week or so she has trouble sleeping. Mona is probably suffering from ________.
jet lag
Melatonin release from the pineal gland is stimulated by ________ and inhibited by ________.
darkness; lightness
Consciousness is best defined as
our awareness of internal and external stimuli
High levels of sensory awareness, thought, and behavior are characteristic of
wakefulness
The large, slow brain waves associated with deep NREM sleep are called:
delta waves
When people are experiencing vivid dreams:
their eyes are likely to move under their closed eyelids
At 3 o’clock in the morning, John has already slept for 4 hours. As long as his sleep continues, we can expect an increasing occurrence of:
REM sleep
Patrick has just entered REM sleep. Which of the following is he likely to experience?
body paralysis
Stage 1 sleep is characterized by a predominance of ________ wave activity in the brain.
alpha
