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- THE WEEK, Page 23HEALTH & SCIENCEEt Cetera
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- DIMINISHED CAPACITY
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- Many researchers think the hallucinations and delusions of
- schizophrenia reflect a physical deterioration of the victim's
- brain. Now comes a new study from Harvard that strengthens that
- theory. Magnetic-resonance imaging of 15 schizophrenic and 15
- normal men shows that the former have less gray matter in the
- left temporal lobe, a region believed to be important to
- language processing. The degree of shrinkage matched the
- severity of thought disorder -- implying that while a cure for
- the disease is nowhere close, scientists may at least be zeroing
- in on the cause.
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- WHAT'S WRONG WITH THIS PICTURE?
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- Many parents think their babies are geniuses. Now a report in
- Nature argues -- not altogether convincingly -- that tots can
- actually add and subtract at five months. After showing objects
- to infants, a psychologist hid the objects with a screen; she
- then reached behind the screen to add or remove one. But she
- added or subtracted objects surreptitiously as well. When the
- screen was lifted, the infants stared longer at a wrong number
- of objects than they did when the result was correct.
- Conclusion: they were doing a double take. Ah, science!
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