Genetic Mutations Allowed Humans To Be Artistic

Makarand writes "Most anthropologists believe that the transformations which allowed humans to think and behave in a recognisably modern fashion happened gradually and were a result of demographic and cultural changes. However, according to an expert on human origins at Stanford University these transformations have a biological explanation and were not gradual. According to his theory 50,000 years ago genetic mutations resulted in a creativity gene that led to the development of the modern mind and started a cultural revolution by triggering biological changes in the brain and vastly improving the human ability to communicate. Evidence in support of such a theory has been found in the form of FOXP2, a gene proven to affect the ability of learning and processing language and which in its mutated form can result in speech and language impediments. Also, the human FOXP2 differs only slightly from similar genes in chimpanzees, mice and other animals."

Comments

Brain overclocking looks quite tricky

[ab762]

Way too many Star Trek episodes not withstanding, messing with an adult's genes is not going to restructure existing tissues. For example, a gene for longer bones won't make you grow taller, because your bones have already stopped growing. A gene for more body hair won't make you hairier, because what the gene really does is controls the development of follicles in the fetus.

Some gene therapies for diseases, such as cystic fibrosis, work (or will work) because the tissues involved - lung tissue - have substantial continuous growth. Others work at the single protein level, sometimes creating a de facto extra organ in the form of altered cells or symbiotic bacteria. Some can be reapplied to active or inactivate existing structures. (Some male pattern baldness could be treated.)

Recently, we've seen that the brain retains stem cells, but to upgrade your brain (or mine), we'd need to:

• rework the genes in the brain stem cells
• remove some brain tissue (to make room)
• get the stem cells to regenerate upgraded brain
• provide therapy to train the new brain tissue to work

There's a couple of good SF novels in that ... of course, Bruce Sterling's Holy Fire has already covered a good deal of this territory.