Dr. McKenzie is performing a study to determine which brain regions are most active when participants recall traumatic events. To do this, he injects them with radioactive glucose
The slight radioactivity allows him to track the glucose using a _____________________ to determine which brain regions are using glucose at a fast rate.
FIll in the blank with correct word.
Answer: PET scan (or positron emission tomography scan)
Rationale: In PET scans low levels of radioactive glucose are injected into the blood, and its movement to regions of the brain engaged in a particular task is measured (active nerve cells use up the glucose at a faster rate than do resting cells). This technique allows researchers to monitor brain activity while a person performs a task such as reading or viewing emotionally charged stimuli.
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Lifetime prevalence of posttraumatic stress disorder (PTSD) is highest among ____
a. African Americans c. White Americans b. Hispanic Americans d. Asian Americans
Markus is terrified of dogs. His therapist confines him in a room with a bunch of friendly puppies. Markus is frightened at first, but after an hour, the fear begins to subside. Markus’s therapist is using ____
a. ?virtual reality therapy b. ?flooding c. ?systematic desensitization d. ?token economy
A person taking the WAIS-IV would receive a
a. WISC score, a WPPSI score, and a WAIS-III score. b. crystallized intelligence score and a fluid intelligence score. c. Full Scale IQ and four additional scale scores. d. single IQ score.
The 95% confidence interval means that 95% of the time = µ
Indicate whether the statement is true or false