Of the Four Related Pervasive Developmental Disabilities That Are Included

question 6

Multiple Choice

Of the four related pervasive developmental disabilities that are included under the American Psychiatric Association's current definition of autism spectrum disorder,which one can manifest as late as the age of 10?

• A)Asperger syndrome
• B)autistic disorder
• C)childhood disintegrative disorder
• D)pervasive developmental disorder not otherwise specified

---

Definitions:

REM Rebound

A phenomenon where there is an increase in the amount of REM sleep after being deprived of sleep, especially in the context of REM sleep deprivation.

Hallucinations

False sensory experiences, such as seeing something in the absence of an external visual stimulus.

Night Terrors

A sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during N3 sleep, within two or three hours of falling asleep, and are seldom remembered.

Sleep Spindles

Bursts of brain activity visible on an EEG that occur during stage 2 of sleep, thought to be related to learning and memory.