In positron emission tomography, to track the metabolism of glucose, a radioactive compound called a(n) _____ is mixed with glucose and injected into the bloodstream

In the Strange Situation, children who showed _________ attachment seemed oblivious to their mother’s departure and return and did not seek her out as a safe haven

Fill in the blank(s) with the appropriate word(s).

The primary symptoms of autism spectrum disorders include ____

a. deficits in social exchanges b. severe intellectual disabilities c. excessive, unwavering eye contact d. extremely powerful memory skills