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Breaking News
Notes
Mind Over Machine:
People control a computer through electrodes implanted in
their brains
People connected to a brain-machine interface can control individual neurons
that recognize Marilyn Monroe or Josh Brolin, making one image or the other
brighter on a computer screen.
Using nothing but thoughts, people can coax a brain cell that likes Marilyn
Monroe to overpower a Josh Brolin—favoring cell in a dominance battle that
brings her image up on a computer screen, a study appearing October 28 in Nature
shows. The paper expands on data presented last year at the Society for
Neuroscience’s annual meeting in Chicago (SN: 11/21/09, p. 9) and shows how the
brain makes choices about what to pay attention to in a sensory-rich world…By
Laura Sanders, read entire article at
www.ScienceNews.org/view/generic/id/64748/title/Mind_over_machine
Venus, erupting?
Lava flow suggests recent volcanism Beneath its dreary shroud
of clouds, Venus could be positively hopping: Planetary geologists have spotted
a lava flow they say is just decades old. If confirmed, it would be the youngest
evidence for volcanism on Venus.
“The flow we studied seems to be very young—it is still warm inside,” says
Nataliya Bondarenko, a planetary scientist at the University of California,
Santa Cruz. She and her colleagues describe their findings in an upcoming issue
of Geophysical Research Letters.
Researchers have long thought that Venus must be geologically active, since more
than 1,000 volcanoes dot its surface. But scientists have struggled to gather
definitive evidence that the planet is active today, like Earth, and not long
dead, like Mars…By Alexandra Witze, read entire article at
www.ScienceNews.org/view/generic/id/64597/title/Venus%2C_erupting%3F
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