3.According to Brinkman, as the brain evolved, one side became specialised for fine control of movement (necessary for producing speech) and along with this evolution came righthand preference.
3.根据Brinkman,认为的大脑发展,一面变得专
好的控制行为(产生语言能力的需要)并且沿着这种发展成为惯
右手偏好。