You Have Just Joined a Psychology Lab and Are Working

question 212

Multiple Choice

You have just joined a psychology lab and are working with a group of researchers who are interested in how the brain responds to different kinds of facial expressions (e.g. happy, scared, angry, etc.) . They ask you if you have any ideas for experiments. You suggest that knowing whether the overall electrical activity of the brain changes immediately after processing happy or scared faces might tell you something about how the brain perceives emotion. If you hypothesize that the electrical response of the brain may vary across different kinds of facial expressions, what method would be appropriate to test that hypothesis?

• A)ERP (event-related potentials)
• B)a computerized axial tomography (CT) scan
• C)transcranial magnetic stimulation (TMS)
• D)None of these method would be appropriate to test that hypothesis.
• E)A functional MRI (fMRI)

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Definitions:

Cumulative Probability

The probability of obtaining a result equal to or less than a specific value within a statistically distributed set of data.

Demand Probability

The likelihood or chance that a product or service will be desired or required by the market at a certain time.

Monte Carlo Simulation

A statistical technique employing random variables to simulate a model numerous times, thereby estimating the probable outcomes of various decisions or future events.

Cumulative Probability

The probability that a random variable is less than or equal to a specific value, often visualized as the area under the probability distribution curve to that point.