Encephalization quotient (EQ), encephalization level (EL), or just encephalization is a relative brain size measure that is defined as the ratio between observed and predicted brain mass for an animal of a given size, based on nonlinear regression on a range of reference species.

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Encephalization Quotient (EQ) is a measure of brain size relative to body size, calculated by dividing the mass of the brain by the mass of the body. It is used to assess the level of brain development and complexity in different species, including reptiles.

Jul 9, 2021 · Jerison [1973] then proposed the encephalization quotient (EQ), the ratio of a species’ actual brain size to its predicted brain size based on the clade-specific brain-body regression line, to capture its relative cognitive performance. The EQ has become a commonly used estimate of the cognitive abilities or intelligence of animal species.

Apr 9, 2025 · In mammals and birds the formula for calculating EQ is brain mass/0.12 × (body mass)0.66. Modern humans (Homo sapiens) have an EQ of roughly 6, meaning that their brain mass is six times greater than a typical mammal.

Sep 30, 2024 · Emotional intelligence, or EQ, is more than just a buzzword. It’s a set of skills that allows us to recognize, understand, and manage our own emotions, as well as those of others. But what exactly is going on in our brains when we exercise these skills?

Apr 22, 2020 · So how does the brain function when it comes to emotional intelligence, and what procedure follows in trying to achieve a high EQ? What Is Emotional Intelligence?

Feb 22, 2017 · Jerison and Barlow proposed the encephalization quotient (EQ) as an alternative for estimating brain size while taking into account body mass. The EQ was conceived as the observed brain volume divided by the expected brain size for a species of a particular body mass.

Jun 2, 2024 · An EQ value of 1 implies that the brain mass is as expected for this group. Modern humans (Homo sapiens) have an EQ between 6 and 7, meaning that our brain mass is typically 6 times greater than that of a typical mammal.

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