AP PSYCHOLOGY

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BIOLOGICAL BASES OF BEHAVIOR

BIOLOGY OF CONSCIOUSNESS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Malcolm often experiences overwhelming feelings of sleepiness. In fact, Malcolm has been known to fall asleep at his desk. He may be suffering from
A
Sleep apea
B
narcolepsy
C
insomnia
D
night terrors
Explanation: 

Detailed explanation-1: -Your health care provider may suspect narcolepsy based on your symptoms of excessive daytime sleepiness and sudden loss of muscle tone, known as cataplexy.

Detailed explanation-2: -With REM sleep, changes occur in brain signaling which cause reduced muscle tone in many of the body’s muscles; this may be called REM sleep muscle paralysis or muscle atonia.

Detailed explanation-3: -Excessive daytime sleepiness. People with narcolepsy fall asleep without warning.

Detailed explanation-4: -Many cases of narcolepsy are thought to be caused by a lack of a brain chemical called hypocretin (also known as orexin), which regulates sleep. The deficiency is thought to be the result of the immune system mistakenly attacking parts of the brain that produce hypocretin.

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