Word: brained
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This cycle (or its reverse) was repeated six times--enabling us to collect 144 scans of different brain regions for each participant. After the experiment was over, I interviewed all the subjects again, asking how they felt and what they were thinking about during all parts of the test. To express our gratitude, we gave each participant $50 and a picture of his or her brain...
...psychology lab to volunteer. Mashek weeded out those who had metal in their heads (such as lip, tongue or nose jewelry or braces on their teeth) that would affect the magnet in the fMRI machine. She also excluded those who were claustrophobic, those taking medication that could affect brain physiology, and men and women who were left-handed. Brain organization can vary with handedness, and we needed to standardize our sample as much as possible...
...passion, I invited him or her to participate. We acquired two photographs: one of the beloved and one of an emotionally neutral individual. Generally the latter was someone the subject had known casually in high school or college. Then we set a date to put each subject into the brain scanner...
...BRAIN-SCANNING PROCEDURE...
...simple but not easy. First Mashek and I made the participant as comfortable as possible in the scanner--a large, horizontal, cylindrical, cream-colored plastic tube that is open at both ends and extends from above the head to about the waist. After taking preliminary scans to establish basic brain anatomy, the 12-min. experiment started. First the subject looked at the photograph of the beloved on the screen for 30 sec. as the scanner recorded blood flow in various brain regions. Next the subject was shown a large number and asked to count backward for 40 sec. The participant...