Which of the following is the primary benefit of SPECT over PET?
a) SPECT is a non-invasive neuroimaging technique, while PET is invasive.
b) SPECT offers the benefit of using radioactive tracers that are easier to obtain than PET.
c) SPECT allows the monitoring of actual brain activity, while PET does not.
d) SPECT offers the monitoring of brain oxygen changes, while PET does not.
ANS: b
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Adolescents who are unwilling to be abstinent rely on ________, the intentional prevention of pregnancy
A) abortions B) contraception C) liaisons D) circumcision
The classic "wug test" was developed to determine whether young children are able to
a. imitate a nonsense word b. use rules of grammar to modify nonsense words c. suggest real words that rhyme with nonsense words d. avoid overextending words in nonsensical contexts