HOME >> BIOLOGY >> NEWS
Bigger is smarter

ALLENDALE, Mich. -- When it comes to estimating the intelligence of various animal species, it may be as simple measuring overall brain size. In fact, making corrections for a species' body size may be a mistake. The findings were reported by researchers at Grand Valley State University and the Anthropological Institute and Museum at the University of Zrich, Switzerland. The study has now been published online in the journal Brain, Behavior, and Evolution.

"It's long been known that species with larger body sizes generally have larger brains," said Robert Deaner, assistant professor of psychology at Grand Valley and the first author on the study. "Scientists have generally assumed that this pattern occurs because larger animals require larger nervous systems to coordinate their larger bodies. But our results suggest a simpler reason: larger species are typically smarter."

Deaner said the findings imply that a re-evaluation may be in order for many previous studies that have compared brain size across different animal species, including ancestral hominids.

The new results build on a paper by the same researchers, published in the online journal Evolutionary Psychology, in July 2006, which showed that some primate species consistently outperform others across a broad range of cognitive tasks. That finding provided evidence for species differences in intelligence or "domain-general cognition," in the parlance of the field. This intelligence allows an animal to tackle new and unpredictable situations. Domain-general cognitive ability stands in contrast to domain-specific skills that are suited to particular environment challenges, such as a bird remembering where it cached food.

The new study compared how well eight different brain size measures predicted the domain-general cognition variable generated in the earlier study. To the researchers' surprise, overall brain size and overall neocortex size proved to be good predictor
'"/>

Contact: Mary Pirkola
pirkolam@gvsu.edu
616-331-2221
Grand Valley State University
18-May-2007


Page: 1 2 3

Related biology news :

1. Bigger horns equal better genes
2. Copper circuits help brain function -- could tweaking the circuits make us smarter?
3. Making medicine smarter
4. VCU study shows big-brained people are smarter
5. Were bigger brains really smarter?

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/24/2016)... care by providing unparalleled technology to leaders of the medical imaging industry.  As such, ... to the range of products distributed by Ampronix. Photo - http://photos.prnewswire.com/prnh/20160524/371420 ... ... ... With ...
(Date:5/12/2016)... 12, 2016 WearablesResearch.com , a brand ... overview results from the Q1 wave of its quarterly ... was consumers, receptivity to a program where they would ... health insurance company. "We were surprised to ... Michael LaColla , CEO of Troubadour Research, "primarily ...
(Date:4/28/2016)... FRANCISCO and BANGALORE, India , ... of EdgeVerve Systems, a product subsidiary of Infosys (NYSE: ... provider, today announced a global partnership that will ... way to use mobile banking and payment services. ... is a key innovation area for financial services, but it ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... 2016  Regular discussions on a range of subjects including ... two entities said Poloz. Speaking at a lecture ... , he pointed to the country,s inflation target, which is ... "In certain areas there ... common economic goals, why not sit down and address strategy ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... announce the launch of their brand, UP4™ Probiotics, into Target stores nationwide. The ... is proud to add Target to its list of well-respected retailers. This list ...
(Date:6/23/2016)... ... 2016 , ... Charm Sciences, Inc. is pleased to announce ... Research Institute approval 061601. , “This is another AOAC-RI approval of the Peel ... President of Regulatory and Industrial Affairs. “The Peel Plate methods perform comparably to ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the sample tracking ... Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application Specialist. ... Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our capacity as ...
Breaking Biology Technology:
Cached News: