Which statement is true of the blood-brain barrier?
A. The barrier is uniform throughout the brain.
B. The barrier is selectively permeable.
C. The barrier functions to regulate the chemical composition of the cerebrospinal fluid.
D. The barrier is formed by microglia.
Answer: B
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Which of the following may accompany autism?
a. Preservation of sameness b. Delusional thinking c. Perceptual hallucinations d. Panic attacks
Your uncle spent most of his teen years in a hospital undergoing treatment for a severe physical illness. As an adult, he is rather shy and withdrawn, particularly around women. He has been diagnosed with social phobia, and you believe that it is entirely due to lack of socialization during his teen years. Your theory or model of what caused his phobia is a. multidimensional. b. integrative
c. one-dimensional. d. biological.
Hernnstein and Murray in their book, The Bell Curve, argued that racial ethnic group differences in IQ are
a. acknowledged by religious sources such as the Bible. b. reduced when "smart pills" are given to minorities. c. explained by the genetic hypothesis. d. caused by racism that pervades American society.
Psychologists speculate that infants who have suffered abuse by their primary caregivers are more likely to exhibit which style of attachment?
A) secure B) avoidant C) ambivalent D) disorganized