Cognitive psychologist: The argument against IQ as a hereditary trait that is fixed throughout one's lifetime ignores the evidence of eye orientation  That is, there is a high correlation between the speed in which a person's eyes orient towards a stimulus and that person's IQ  Specifically, an experiment measured the number of milliseconds subjects required to orient their eyes to the where on a large screen a word was flashed
The study found that the more rapid the response the higher that person's IQ
The screen used in the experiment was so large that subjects had to shift their bodies in order to read the words presented on the screen.