360° Coverage : It's evolutionary difference that makes for human brains

1 Updates
It's evolutionary difference that makes for human brains
Photo Credit: YORICK JANSENS, Getty Images

It's evolutionary difference that makes for human brains

Feb 25 2013, 12:14am CST | by

Washington, Feb 25 (IANS) Humans have two functional networks in their cerebral cortex not found in rhesus monkeys, which may have been added during evolution from primate ancestor to human, say researchers.

Washington, Feb 25 — Humans have two functional networks in their cerebral cortex not found in rhesus monkeys, which may have been added during evolution from primate ancestor to human, say...

Filed under: news

YouTube Videos

 
 
 

1 year ago

It's evolutionary difference that makes for human brains

Feb 25 2013, 12:14am CST | by

Washington, Feb 25 (IANS) Humans have two functional networks in their cerebral cortex not found in rhesus monkeys, which may have been added during evolution from primate ancestor to human, say researchers.

Washington, Feb 25 — Humans have two functional networks in their cerebral cortex not found in rhesus monkeys, which may have been added during evolution from primate ancestor to human, say researchers.

Neurophysiologist Wim Vanduffel from the Unversity of Leuven (Belgium) and Harvard Medical School, with a team of Italian and US researchers, reported their findings, based on an analysis of brain scans.

Our ancestors evolutionarily split from those of rhesus monkeys about 25 million years ago. Since then, brain areas have been added, have disappeared or have changed in function, according to a Harvard statement.

Vanduffel explains: "We did functional brain scans in humans and rhesus monkeys at rest and while watching a movie, to compare both the place and the function of cortical brain networks. Even at rest, the brain is very active."

"Different brain areas that are active simultaneously during rest form so-called 'resting state' networks. For the most part, these resting state networks in humans and monkeys are surprisingly similar, but we found two networks unique to humans and one unique network in the monkey," said Vanduffel.

"When watching a movie, the cortex processes an enormous amount of visual and auditory information. The human-specific resting state networks react to this stimulation in a totally different way than any part of the monkey brain," said Vanduffel.

"Our unique brain areas are primarily located high at the back and at the front of the cortex and are probably related to specific human cognitive abilities, such as human-specific intelligence," concludes Vanduffel.

IANS

Source: IANS

 

Don't miss ...

 

<a href="/latest_stories/all/all/8" rel="author">Luigi Lugmayr</a>
Luigi is the founding Chief Editor of I4U News and brings over 15 years experience in the technology field to the ever evolving and exciting world of gadgets. He started I4U News back in 2000 and evolved it into vibrant technology magazine.
Luigi can be contacted directly at ml@i4u.com. Luigi posts regularly on LuigiMe.com about his experience running I4U.

 

blog comments powered by Disqus

Latest stories

Man with 'disconnected' brain, alive and kicking at 88!
New York, Sep 1 (IANS) This may sound and read unbelievable but there is an elderly man whose brain has no neural fibre connection between his two hemispheres!
 
 
Women at greater stroke risk from resistant hyper-tension
London, Sep 1 (IANS) The condition known as Resistant Hyper-tension increases stroke risk by 35 percent in women and 20 percent in elderly patients, according to new research.
 
 
World's first battery-less pacemaker in the works
London, Sep 1 (IANS) In a revolutionary breakthrough for heart patients, scientists have come up with a way to power a cardiac pacemaker with an alternative energy source - the heart motion.
 
 
New blood test to reliably detect TB in kids
London, Sep 1 (IANS) About one million children per year develop tuberculosis (TB) worldwide, but unfortunately detecting TB in children has been a challenge as the symptoms are often non-specific and similar to those of common paediatric illnesses, including pneumonia and malnutrition.
 
 
 

Latest from the Network

Rebels, Syrian forces clash near Golan Heights
Cairo, Sep 2 (IANS/EFE) Islamic rebels clashed with the Syrian forces near Israeli-controlled Golan Heights Monday, the Syrian Observatory for Human Rights said. The observatory, in a statement, said that fighting...
Read more on Politics Balla
 
Kelly Brook suffered second miscarriage
London, Sep 2 (IANS) Actress-model Kelly Brook has revealed that she suffered a second miscarriage while dating Thom Evans. The 34-year-old and the former rugby star lost their first child May 6, 2011 when Brook gave...
Read more on Celebrity Balla
 
Russia may retaliate against fresh EU sanctions
Moscow, Sep 2 (IANS/EFE) Russia will take retaliatory measures to defend its legitimate interests if the European Union imposes new sanctions over Moscow's intervention in Ukraine, the country's foreign ministry said...
Read more on Politics Balla
 
Britney Spears looking forward to dating
Britney Spears is looking forward dating again. The 32-year-old singer admitted during her 'Piece of Me' show at the Planet Hollywood in Las Vegas yesterday (08.31.14) that she's excited about meeting someone new...
Read more on Celebrity Balla
 
Lindsay Lohan seeks hypnosis to quit smoking
Lindsay Lohan has reportedly been undergoing hypnotherapy to help her give up smoking. The 28-year-old actress has turned to psychotherapy in the hope of kicking her nicotine addiction before she performs in 'Speed-the...
Read more on Celebrity Balla
 
Ian Somerhalder and Nikki Reed spend $860 in sex shop
Ian Somerhalder and Nikki Reed allegedly spent nearly $1,000 in a sex shop yesterday (08.31.14). The new couple, who have been dating for the past few months, reportedly forked out $860 on a number of erotic toys -...
Read more on Celebrity Balla
 
Robin Williams' daughter returns to Twitter
Robin Williams' daughter has returned to Twitter. Zelda Williams posted her first tweet on the social networking site tonight (01.09.14) almost three weeks after she abandoned her account when she received abusive...
Read more on Celebrity Balla
 
Is Miley Cyrus dating Douglas Booth?
Los Angeles, Sep 2 (IANS) Pop star Miley Cyrus and British actor Douglas Booth are reportedly dating. The "Wrecking Ball" hitmaker was first rumoured to be romancing Booth in 2010 when they co-starred in teen drama "...
Read more on Celebrity Balla
 
UN chief alarmed by Israeli claim on West Bank land
United Nations, Sep 2 (IANS) UN Secretary-General Ban Ki-moon Monday expressed alarm at the Israeli declaration of a 400 hectares area in the West bank as "state land". "The secretary-general is alarmed by yesterday's...
Read more on Politics Balla
 
Three executed in Yemen for having US links
Aden, Sep 2 (IANS) Three people have been executed by militants in Yemen Monday for having links with the United States, a military source said. "Suspected Yemen-based Al Qaida operatives kidnapped three local...
Read more on Politics Balla