The nature of humanity: What’s a man? | The Economist

Crucial findings for my theory!!! Youth is always more flexible for all species but for humans this flexible period is longer than others. Also gene expression is related.

Though these uniquely expressed genes were most active in the young of all species, their period of activity was several years longer in humans than in the others. Fifth, the activities of a lot of the uniquely active genes seemed to be correlated: the researchers identified seven groups of genes (five in the prefrontal cortex and two in the cerebellum) which each seemed to be working as a module. And sixth, these modular genes seem to be involved in the crucial job of linking nerve cells together through junctions called synapses.

To summarise, human beings have suites of genes that probably cause their brains to be “plastic” and thus receptive to change far longer (to the age of about five) than is true for chimps or monkeys (whose brains are plastic for less than a year after birth).

Moreover, Dr Khaitovich was able to work out how the expression of these modules of genes was co-ordinated, by looking at the switches, known as transcription factors, that turn them on and off

via The nature of humanity: What’s a man? | The Economist.

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