"When human #HARs —segments of #humanDNA that evolved much faster than expected— were introduced into #chimpneurons, they also grew more projections, suggesting a direct link between HARs and neural #complexity. However, these same genetic changes may also contribute to #neurodevelopmentaldisorders like #autism, highlighting the delicate balance of human brain evolution."

https://neurosciencenews.com/genetics-evolution-cognition-28441/