Human intellectual disability, formally defined as full-scale IQ of 70 and below (Kleefstra and Hamel 2005; Chelly et al. 2006; Raymond 2006), is caused in many cases by rare, highly-penetrant loss-of-function mutations affecting a set of identified genes (Chiurazzi et al. 2004; Inlow and Restifo 2004).
"The resource that we have is our human intellectual potential.
Success would, those scientists believed, reach to the very core of human intellectual endeavour.
Tomorrow's bottom line will embrace new forms of capital, among them human, intellectual, social and natural capital.
Instead, there will be an 8ft "happy humanist" next to a "reason tree" dedicated to science and "human intellectual achievement".
Pictures of flowers, on the other hand, can be intriguing for what they reveal about human intellectual history.
It suggests that getting stuff wrong is at least as important in the story of human intellectual progress as being right all the time.
The third tendency was a new interest in nature and a general broadening of human intellectual horizons, spurred by developments in science and by explorations of the globe.
The scientist draws on recent studies to estimate a figure for the number of genes that play a role in human intellectual ability, and the number of new mutations that harm those genes each generation.
The book "supported changes in societal organisation that were to measurably enhance world standards of living", he added, calling the book "one of the great achievements in human intellectual history".
Other academic subjects don't encounter this kind of uncomprehending hostility — though it must be said that prejudice and narrow-mindedness can afflict various regions of human intellectual inquiry, as with evolutionary biology and creationism, and astronomy and Biblical literalism.
