David Gire – 91探花News /news Tue, 27 Oct 2020 16:19:33 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 Video: Meet the real-life kraken: the octopus /news/2020/07/30/uw-researcher-explains-the-real-life-kraken-the-octopus/ Thu, 30 Jul 2020 20:29:46 +0000 /news/?p=69685

 

Seattle鈥檚 new hockey team is named for a legendary creature of the sea, and that鈥檚 a perfect fit, according to octopus researchers at the 91探花.

, an assistant professor of psychology, studies the neuroscience of the octopus. He says their tentacles act like little brains as their arms forage for food, that one species is big and strong enough to take down a shark, and how, even though octopus are solitary creatures, they learn from each other and work together.

A 91探花Scandinavian Studies expert explains the mythology of the kraken here.

That鈥檚 part of what makes the Kraken such an appropriate name, and logo, for a hockey team, Gire says. With the octopus, 鈥測ou鈥檙e seeing the epitome of teamwork. You鈥檙e seeing an arm with a bunch of little brains, and they鈥檙e all working together to guide where that arm goes.鈥

Gire’s team has had many an opportunity to “release the kraken” when researchers return an octopus to the Puget Sound, after observing it in the lab. His graduate students have taken a creative approach to explaining the facts of the octopus, in the form of kraken lore, . For more information, contact Gire at dhgire@uw.edu.

 

 

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Of octopuses and astrobiology: Conference talk speculates on cognition beyond Earth /news/2019/06/18/of-octopuses-and-astrobiology-conference-talk-speculates-on-cognition-beyond-earth/ Tue, 18 Jun 2019 16:12:12 +0000 /news/?p=62787 Of the many papers and presentations scheduled for , the conference on and the search for life in space happening in Bellevue, Washington, the week of June 24, Dominic Sivitilli’s is perhaps unique 鈥 he’ll discuss his research into how octopuses “think.”

Dominic Sivitilli

More specifically, Sivitilli, a 91探花 doctoral student in behavioral neuroscience in the Department of Psychology, will explain the extraordinary way that octopuses gather information, and even make certain decisions, with their arms 鈥 and note the possible astrobiological benefit of learning about “the diversity of forms a mind can take.”

Sivitilli works with , 91探花assistant professor of psychology.

The nervous system of an octopus is very diffuse, Sivitilli said, and mostly located in the arms. “When I do my work I look at how the arms are acquiring information from the environment, and how they are collectively making decisions about that information. That’s where most of their nervous system is, and it allows them to process massive amounts of information in parallel.”

The octopus brain “offloads” some motor decisions to the arms, which are lined with suckers, each of which has tens of thousands of chemical and mechanical receptors, Sivitilli said.

Like other life forms such as ourselves, octopuses have evolved over billions of years. The last common ancestor we had with such creatures was 500 million years back 鈥 since then the two species have evolved in parallel but through “entirely different neural architecture.”

“Their way of thinking is fundamentally different,” Sivitilli said. “We are not asking, ‘How intelligent are they? We are asking, ‘How are they intelligent?”

Sivitilli is a scientific scuba diver. He first studied the smaller red octopus, and then came to the UW’s , a perfect place to study the behavior and cognition of much bigger Enteroctopus dofleini, or the giant Pacific octopus 鈥 the largest octopus species known.

In an essay titled “,” Sivitilli wrote of encountering “a large, camouflaged, breathing mass” 45 feet down in the water off San Juan County Park. This was a giant Octopus he and colleagues named and brought into the lab for study.

And as the days and nights passed in the darkened lab, the human and the octopus regarded each other with mutual interest and curiosity.

“Two cousins we are, meeting across an evolutionary divide of over 500 million years,” he wrote. He said he found it “a humbling experience.”

The astrobiological connection is perhaps already clear, if a bit distant. Sivitilli said studying cephalopods and other alternative forms of intelligence here on Earth might provide perspective to help us better identify and understand life 鈥 intelligent or not 鈥 if we ever run across it in the cosmos.

Humankind will not set foot on habitable exoplanets light-years away in the foreseeable future 鈥 so it takes a certain leap of faith to study Earthbound creatures as a proxy for extraterrestrial life. Sivitilli knows this.

“Yes, but I feel like that is a lot of what astrobiology is doing,” he said. “They are looking at extremophiles and saying, ‘Maybe this is what a microbe might look like 鈥 out there.'”

In the meantime, he said, such study could have value closer to home as well.

“Maybe I am just interested in cognition in general 鈥 alternate forms of cognition, computation, communication. Because I feel like this goes beyond extraterrestrial intelligence 鈥 maybe this is saying something about AI.”

Sivitilli and Gire will discuss their work on June 26 as part of the weeklong conference, at the Bellevue Hyatt Regency Hotel.

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For more information, contact Sivitilli at domsivi@uw.edu

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