Sleep and Memory: Key Concepts

What is the main symptom of Fatal Familial Insomnia (FFI)?

• Sudden weight gain

• Progressive insomnia

• Enhanced memory

• Increased body temperature

Which type of memory is especially helped by non-REM sleep?

• Motor skills

• Habits

• Declarative memories

• Short-term memories

What technology helped scientists discover that the brain is active during sleep?

• X-ray

• MRI

• EEG

• Microscope

Which part of the brain did Constantin von Economo propose is the center of the arousal system, sending waking signals?

• Cerebellum

• Brain stem

• Hippocampus

• Thalamus

What effect does sleep deprivation have on a person's sensitivity to pain?

• It decreases pain sensitivity.

• It increases pain sensitivity.

• It has no effect on pain sensitivity.

• It only affects chronic pain, not acute pain.

How does sleep deprivation affect the immune system?

• It makes the immune system stronger and more efficient.

• It causes the immune system to become overactive and produce inflammatory molecules.

• It weakens the immune system, making it unable to fight off illness.

• It has no significant effect on the immune system's function.

What is the primary way blue light from electronic devices affects sleep?

• It helps the body produce more melatonin, leading to better sleep.

• It has no effect on sleep patterns.

• It reduces the production of melatonin, making it harder to fall asleep.

• It makes sleep cycles more regular.

What is the main role of cerebrospinal fluid (CSF) in the brain during sleep?

• It helps to produce new brain cells.

• It carries oxygen to the brain cells.

• It acts as a cleaning fluid, removing waste products from the brain.

• It helps to regulate brain temperature.