October 12th, 2006

homuncul

NEUROSCIENCE

В некоторых аспектах человеческий мозг - не вершина эволюции

Маленькая птичка даст ему сто очков вперед. 


Like many animals preparing for the winter, every fall the Clark’s nutcracker spends several weeks gathering food stores. What makes it unique is that it harvests more than 30,000 pine nuts, buries them in up to 5,000 caches, and then relies almost solely on its memory of where those caches are located to survive through winter.

Clark’s nutcracker

“During winter, their cache locations are covered with snow so many of the small local features in the landscape during fall are no longer available to them. What’s clear is that they are using spatial memory to recover these caches. They are remembering these caches based on landmarks and other features of the terrain.”

One way that nutcrackers might solve the problem of returning to their caches is by developing a mental map of landmarks in their environment and recalling the location of the caches relative to the landmarks in the map. If they do have a map then they might be able to plan efficient routes to get from one cache site to the next – a problem called the Traveling Salesman Problem.

University of New Hampshire Press release 


Brett Gibson Assistant Professor in the Psychology Department at the University of New Hampshire

Center for Avian Cognition

см. также
http://nature-wonder.livejournal.com/53202.html