A brain-imaging method using magnetic fields to measure the spinning of hydrogen atoms in the brain is called
A) electroencephalography (EEG).
B) magnetic resonance imaging (MRI).
C) positron emission tomography (PET).
D) computed tomography (CT).
Answer: B
Rationale: Magnetic resonance imaging (MRI) uses a giant magnetic field to align and spin hydrogen atoms in the same direction. Radio waves are then passed through the brain, disrupting the alignment of the atoms. These disruptions produce a signal that can be translated into a detailed, 3-dimensional image of the brain.
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A dental drill can become an unpleasant stimulus, especially for people who may have experienced pain while one was used on his teeth. In this case, the pain elicited by the drill is a(n) _____
a. conditioned response b. unconditioned stimulus c. conditioned stimulus d. unconditioned stimulus
Which of the following is an example of a rewarding consequence?
a. food b. high grades c. praise d. money e. All of the above are correct.
A clear example of the connection between the mind and body, especially between psychology and immune functioning, is that ______.
A. only real emotional experiences lead to immune changes B. autoimmune disorders are more common in men C. even faked emotional experiences lead to immune changes D. Only animals show a conditioned immune response
The decline in college aptitude test scores during the 1960s and 1970s was due in part to:
a. the increasing academic diversity of students taking these tests. b. the standardization of college aptitude tests on more representative samples of the population. c. the introduction of new and increasingly difficult aptitude test questions. d. today's students' inexperience with standardized tests.