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"Truth Serum: Brain Scans May be Foolproof Lie Detectors." Psychology Today, Jan/Feb 2002, pg.
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"If I Only Had a Brain Scan." Business Week, Jan. "My Brain is a Walnut: Inside an fMRI Machine." Slate. MRI Scanners and Coils Market." April 21, 2006. "Mind Reading is Now Possible A computer can tell with 78 percent accuracy when someone is thinking about a hammer and not pliers." Newsweek, Jan. "Inside the Grieving Brain Memories of the person they missed prolonged their grief, giving them pleasure as well as pain." Newsweek. They think that by recording the electrical activity in neurons, they will get a more complete and precise picture of brain activity. In the future, researchers hope to make fMRI more "scientific" and improve its accuracy by focusing on individual neurons. īecause of these drawbacks, some critics argue that fMRI is nothing more than a high-tech version of phrenology, the 19th-century pseudo-science that claimed to divulge a person's character based solely on the shape of his or her skull. So how did those political terms make the subjects feel - disgusted or connected? It was difficult for researchers to tell with any certainty. But the three terms also elicited activity in areas of the brain associated with reward, desire and connectedness. For example, in one UCLA study by researcher Marco Iacoboni, when swing voters were shown the words "Democrat," "Republican" and "independent," an area of their brain called the amygdala was activated, indicating feelings of anxiety and disgust. In addition, the results of an fMRI scan can be difficult to interpret. Because certain areas of the brain that "light up" on fMRI may represent a number of different functions, it's hard to tell exactly what kind of brain activity is being represented on the scan. Each area of the brain studied in fMRI is made up of thousands of individual neurons, each of which might have a unique story to tell. It can't home in on the activities of individual nerve cells ( neurons), which are critical to mental function.
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The biggest complaint from researchers is that fMRI can only look at blood flow in the brain.