Summarize the major recording and imaging techniques used to study the brain
What will be an ideal response?
An electroencephalograph (EEG) records the electrical activity of the brain using electrodes attached to the scalp. This provides a rather general measure of the brain's activity. A computed tomography (CT) scan uses a computer to measure X-rays that are passed through the brain at various angles. This provides a 3-dimensional view of the structures within the brain and can identify any irregularities. A positron emission tomography (PET) scan measures accumulation of radioactively labeled substances in the brain. The pattern of accumulation provides insight into which part of the brain is most active under certain conditions. Magnetic resonance imaging (MRI) can provide detailed images of brain structures by examining signals emitted by atoms in the brain that have been disturbed by a strong magnetic force. A new type of MRI, functional MRI, provides information about the functions of brain structures.
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Whether attitudes have real influences on behavior often depends on
a. the degree of agreement among beliefs, emotions, and attitudes. b. the age at which the attitude was formed. c. how well the attitude is integrated with other attitudes. d. the conviction with which attitudes are held.
Which treatment for depression produces benefits most quickly and which one produces the most long-lasting benefits?
a. Psychotherapy acts most quickly. Electroconvulsive therapy has the most lasting benefits. b. Electroconvulsive therapy acts most quickly. Psychotherapy has the most lasting benefits. c. Antidepressant drugs act most quickly. Electroconvulsive therapy has the most lasting benefits. d. Psychotherapy acts most quickly. Antidepressant drugs have the most lasting benefits.
Claire must try to convince the other executives in her company to invest in a major real estate venture. She knows that her colleagues are not initially in favor of the idea. According to what psychologists know about the optimal content for persuasive messages, Claire should:
A. present both sides of the argument B. present one side of the argument C. present the facts and let the members of the group make up their own minds D. start by suggesting that they not make the investment, in the hope that she will get some opposition to that idea
A low score on the ____ personality dimension has been associated with having a Type A personality
a. agreeableness b. openness to experience c. neuroticism d. extroversion