USA Today reports:
A final mystery surrounding the work of film legend Alfred Hitchcock— what triggered the crazed bird flocks that helped inspire his 1963 thriller The Birds— appears solved by scientists.
Dying and disoriented seabirds rammed themselves into homes across California’s Monterey Bay in the summer of 1961, sparking a long-standing mystery about the cause among marine biologists. The avian incidents sparked local visitor Hitchcock’s interest, along with a story about spooky bird behavior by British writer Daphne du Maurier.
“I am pretty convinced that the birds were poisoned,” says ocean environmentalist Sibel Bargu of Louisiana State University in Baton Rouge. She led a team finding that naturally occurring toxins appear to have been the culprit.
Call it the Case of the Poisoned Plankton. Looking at the stomach contents of turtles and seabirds gathered in 1961 Monterey Bay ship surveys, Bargu and colleagues have now found toxin-making algae were present in 79% of the plankton that the creatures ate. In particular, the team finds in the current Nature Geoscience journal that the leading toxin inside the plankton was a nerve-damaging acid, which causes confusion, seizures and death in birds.
The Washington Post reports:
To neuroscientists, what happened to Texas Gov. Rick Perry Wednesday night looked like something very ordinary, exacerbated by stress: a “retrieval failure.”
It happens more often as we age. But the brain scientists say it shouldn’t be seen as evidence of an intellectual deficit or some medical problem. Instead, they say, retrieval failures offer a glimpse into how the brain does and doesn’t work, not just in the skulls of presidential candidates but for everyone else, too.
The New York Times reports:
The author of “On Being Certain” and the coming “A Skeptic’s Guide to the Mind,” Dr. [Robert A.] Burton is a contributor to a scholarly yet surprisingly sprightly volume called “Pathological Altruism,” to be published this fall by Oxford University Press. And he says his colleague’s behavior is a good example of that catchily contradictory term, just beginning to make the rounds through the psychological sciences.
As the new book makes clear, pathological altruism is not limited to showcase acts of self-sacrifice, like donating a kidney or a part of one’s liver to a total stranger. The book is the first comprehensive treatment of the idea that when ostensibly generous “how can I help you?” behavior is taken to extremes, misapplied or stridently rhapsodized, it can become unhelpful, unproductive and even destructive.
Medical Xpress reports:
In a study to be published Sept. 1 in Nature, Stanford University School of Medicine scientists have found substances in the blood of old mice that makes young brains act older. These substances, whose levels rise with increasing age, appear to inhibit the brain’s ability to produce new nerve cells critical to memory and learning.
The findings raise the question of whether it might be possible to shield the brain from aging by eliminating or mitigating the effects of these apparently detrimental blood-borne substances, or perhaps by identifying other blood-borne substances that exert rejuvenating effects on the brain but whose levels decline with age…
The Nature article is available here (free preview, subscription required for full paper).
The Associated Press (via the Huffington Post) reports:
As planes become ever more reliant on automation to navigate crowded skies, safety officials worry there will be more deadly accidents traced to pilots who have lost their hands-on instincts in the air.
Pilots use automated systems to fly airliners for all but about three minutes of a flight: the takeoff and landing. Most of the time pilots are programming navigation directions into computers rather than using their hands on controls to fly the plane. They have few opportunities to maintain their skills by flying manually…