Question

Is intelligence related to brain size?

Answer 1

Intelligence:

1. The ability to learn from experiences and adapt to changing situations is included in most definitions of intelligence.
2. Intelligence is a complex trait affected by both hereditary and environmental factors.
3. In the normal range, intelligence is a polygenic trait, meaning it is influenced by multiple genes, with at least 500 genes in the case of intelligence.
4. The size of one's brain has been found to have a questionable relationship with intelligence.
5. Although having a bigger brain is an indicator of intelligence, intelligence is more likely to be determined by how well different areas of your brain connect with one another.
6. Therefore, there is no direct relation of brain size to intelligence.