ibusinesslines.com July 23, 2018

Scientific proof that dogs are smarter than cats

04 December 2017, 10:08 | Melissa Porter

Inc. All rights reserved. This material may not be published broadcast rewritten or redistributed

Vanderbilt study determines dogs may be smarter than cats

The research was done in the lab of Suzana Herculano-Houzel, an associate professor of psychology and biological sciences at Vanderbilt University.

One of the key questions the study hoped to answer was whether carnivores have more brain neurons than the herbivorous species they prey upon, with the researchers hypothesising that they should because hunting is cognitively more demanding.

"In 2005, my lab developed a very simple, fast and low-priced method to count cells in brains and brain parts", Herculano-Houzel said. "They have a fairly small brain but they have as many neurons as you would expect to find in a primate ... and that's a lot of neurons".

What the researchers did is take brain matter and essentially turn it into soup.

"Neurons are the basic information processing units", said Herculano-Houzel.

For the first time, scientists at Vanderbilt University counted the number of cortical neurons in the brains of both cats and dogs, and found that dogs have almost twice the amount of neurons compared to cats, ABC News reports. While different parts of the brain process outside stimuli like sight and touch, the cerebral cortex puts these stimuli together to drive decision-making and problem-solving, among other functions. For example, the Golden Retriever had more cortical neurons than a brown bear whose brain is three times larger than that of a dog, the number of neurons in the bear approximately equal to the number counted in cats.

"As far as dogs and cats go, the study found that dogs have about 530 million cortical neurons while cats have about 250 million". Humans, by comparison, have around 16 billion. Two brains were used to study dogs because the canines vary so greatly in size.

Researchers also looked at the brains of a ferret, mongoose, hyena, lion, brown bear and raccoon - which they called an "outlier", packing the same amount of neurons as a dog into the brain a size of a cats.

While the researchers may have added scientific clout to a household debate about cats and dogs, their work is part of a larger effort to use neurons as one quantifiable measure of intelligence.

Of course, such an arbitrary measurement of the brain is not an objective metric of such a complex trait as intelligence.

Other News

Trending Now

Nathan Redmond makes his point after Pep talk
And nine points from those games will be a must, if they are to remain in the title race. Southampton have some super talented players, Redmond is so good one against one.

Apple rolls out fix for MacBook's security flaw
In a Medium post today, Ergin today said his Twitter disclosure about the Mac bug was met with "many reactions like a blast". Apple's quick patch for the recently discovered "root" user bug can be undone by upgrading to macOS 10.13.1.

Rob Gronkowski's dirty hit overshadows day of stellar play
Gronkowski did apologize for the hit following the game, saying he just got caught up in emotions and was frustrated. It just happened naturally through emotions, frustration. "I just don't understand why there wasn't a flag.

Microsoft Corp (MSFT) Stock Value Rose While Shelton Capital Management Increased Position
ADV now owns 4,939 shares of the software giant's stock worth $340,000 after purchasing an additional 23 shares during the period. The firm has a market capitalization of $649,337.06, a P/E ratio of 24.90, a PEG ratio of 1.96 and a beta of 0.99.

Bigg Boss 11, December 2: Ready For Salman Khan Ka Vaar
Recently, a still from the film went viral where Salman painted a portrait of Katrina on ice. Now in this song, the chemistry between Salman Khan and Katrina Kaif is really unbelievable .

Samsung is reportedly working on palm scanning technology to show password hints
It's just a patent filing, and that won't necessarily translate to a finished product. Both smartphones will also be IP65/68 water and dust resistant.

UM to play SC in Outback Bowl
Michigan (8-4) had a disappointing regular season as they lost to Michigan State, Penn State, Wisconsin, and Ohio State. The South Carolina Gamecocks and Michigan Wolverines will play each other in the 32nd annual Outback Bowl .