Researchers identify gene linking brain structure to intelligence
For the first time, researchers have identified a gene linking cortical thickness to intellectual ability. By no means a “gene for intelligence,” this genetic variation is shown to affect the expression of a gene responsible for encoding synaptic proteins — effectively altering how brain cells communicate.
“We wanted to find out how structural differences in the brain relate to differences in intellectual ability. The genetic variation we identified is linked to synaptic plasticity — how neurons communicate. This may help us understand what happens at a neuronal level in certain forms of intellectual impairments, where the ability of the neurons to communicate effectively is somehow compromised.”
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