Drums Keep Pounding a Rhythm in the Brain

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Science  23 Feb 2001:
Vol. 291, Issue 5508, pp. 1506-1507
DOI: 10.1126/science.291.5508.1506

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How does the visual cortex of the primate brain manage to focus attention on one interesting object while ignoring all of the other objects in the field of view? According to Stryker in his Perspective, new findings in monkeys ( Fries et al.) demonstrate that neurons in the V4 region of the visual cortex that are activated by the "attended" stimulus show remarkable synchronization of their electrical discharges in the gamma frequency range (35 to 90 Hz), whereas neurons activated by distracting stimuli do not.