Encephalization

The amount of brain mass exceeding what would be expected by an animal's total body mass is termed it's degree of 'Encephalization', or its 'Encephalization Index', which is thought to relate directly to intelligence.

ScienceBlogs Channel : Life Science Christie Wilcox none@example.com 2010

Scientists making cross-species comparisons have often assumed that the neocortex would be more closely linked to intelligence, since it is considered the "thinking part" of the brain. linkOverall Brain Size, and Not Encephalization Quotient, Best Predicts Cognitive Ability across Non-Human Primates.

Archive 2007-05-01 Staq Mavlen 2007

Scientists making cross-species comparisons have often assumed that the neocortex would be more closely linked to intelligence, since it is considered the "thinking part" of the brain. linkOverall Brain Size, and Not Encephalization Quotient, Best Predicts Cognitive Ability across Non-Human Primates.

Bigger Is Better (& Smarter) Staq Mavlen 2007

Encephalization was especially rapid during the last 500,000 to one million years, when relative brain size increased from under EQ = 4 for Homo erectus (arguably the first species of Homo) to about EQ = 6 for living humans (the only surviving subspecies of Homo sapiens).

Archive 2005-10-23 Steve Sailer 2005

Encephalization was especially rapid during the last 500,000 to one million years, when relative brain size increased from under EQ = 4 for Homo erectus (arguably the first species of Homo) to about EQ = 6 for living humans (the only surviving subspecies of Homo sapiens).

Linda Gottfredson devastates Evolutionary Psychology Steve Sailer 2005

The table on the right (Kruska, 2005) shows the Encephalization Indicies (EI) and the percent decrease in relative brain size (DV, %) between wild and domestic forms of different species.

ScienceBlogs Channel : Life Science Christie Wilcox none@example.com 2010

Encephalization data was then used to map changes in relative brain size within specific clades (known as reconstructing a scaling allometry).

بالاترین 2009

Trend toward Encephalization (concentration of neurons at one end of the organism)

Recently Uploaded Slideshows vacagodx 2009

Last week I wrote about one way of indirectly assessing intelligence in non-human mammals: the Encephalization Quotient, the difference between actual brain size and expected brain size based on body size.

The Berkeley Daily Planet, The East Bay's Independent Newspaper 2008