?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=A+NEW+SYNDROME+WITH+QUADRUPEDAL%0AGAIT%2C+PRIMITIVE+SPEECH%2C+AND+SEVERE%0AMENTAL+RETARDATION+AS+A+LIVE+MODEL%0AFOR+HUMAN+EVOLUTION&rft.creator=Tan%2C+Prof.+Dr.+Uner&rft.subject=Evolutionary+Psychology&rft.description=The+author+has+discovered+a+new+syndrome+with+quadrupedal+gait%2C+flexed+head+and+body%2C+primitive+speech%2C+severe+mental+retardation%2C+and+mild+cerebellar+signs+with+a+disturbed+conscious+experience.+This+syndrome+was+exhibited+by+5+of+19+children+from+a+consanguineous+family.+The+pedigree+demonstrated+a+typical%0Aautosomal-recessive+inheritance.+The+genetic+nature+of+this+syndrome+suggests+a+backward+stage+in+human+evolution%2C+which+is+most+probably+caused+by+a%0Agenetic+mutation%2C+rendering%2C+in+turn%2C+the+transition+from+quadrupedality+to+bipedality.+This+would+then+be+consistent+with+theories+of+punctuated+evolution.%0AOn+the+other+hand%2C+the+extensor+motor+system+causing+a+resistance+of+the+body+against+the+gravity+may+actually+be+subjected+to+evolutionary+forces.+This+new+syndrome+may+be+used+as+a+live+model+for+human+evolution.&rft.publisher=Taylor+%26+Francis&rft.contributor=Weinstein%2C+Sir+Sidney&rft.date=2006&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F4941%2F1%2FUNERTAN_SYNDROME_%2528IJN%2529.pdf&rft.identifier=++Tan%2C+Prof.+Dr.+Uner++(2006)+A+NEW+SYNDROME+WITH+QUADRUPEDAL+GAIT%2C+PRIMITIVE+SPEECH%2C+AND+SEVERE+MENTAL+RETARDATION+AS+A+LIVE+MODEL+FOR+HUMAN+EVOLUTION.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F4941%2F