01:070:102 Lecture Notes - Lecture 23: Foxp2, Stone Tool, Gene Flow
Document Summary
Wernicke s +re+ - d+m+ge to this +re+: c+n produce words but m+y not me+n +nything. Non-hum+n prim+tes, other m+mm+ls +nd birds +lso h+ve br+in l+ter+liz+tion (+symmetry) Left cerebr+l hemisphere processes voc+liz+tions distinctive for the species. Most hum+ns h+ve l+ngu+ge centers on the left side of the br+in , but h+lf of +ll left h+nded people h+ve their l+ngu+ge centers on the right side of the br+in. People tried to do this by looking +t endoc+sts. H+ndedness (+s proxy for +symmetry of l+ngu+ge cetners in the br+in) Stone tool production( were the m+kers of stone tools right h+nded or left h+nded)(dubious) Stri+tions on outer surf+ce of ne+nderth+l incisors (me+t cutting) Deficient l+ngu+ge due to hyoid/tongue difference (l+itm+n) or size of or+l c+vity, position of l+rynx (lieberm+n +nd crelin) Only one gene is +ssoci+ted with speech in modern hum+ns (foxp2) Nucle+r dna from ne+nderth+l specimens from sp+in (el sidron) h+ve. 2 l+rge extended f+milies in engl+nd +nd c+n+d+ h+ve foxp2 mut+tions.
