@misc{cogprints4941,
          volume = {116},
          author = {Prof. Dr. Uner Tan},
          editor = {Sir Sidney Weinstein},
           title = {A NEW SYNDROME WITH QUADRUPEDAL
GAIT, PRIMITIVE SPEECH, AND SEVERE
MENTAL RETARDATION AS A LIVE MODEL
FOR HUMAN EVOLUTION},
       publisher = {Taylor \& Francis},
         journal = {International Journal of Neuroscience},
           pages = {361--369},
            year = {2006},
        keywords = {erect posture, evolution, human, quadrupedal gait},
             url = {http://cogprints.org/4941/},
        abstract = {The author has discovered a new syndrome with quadrupedal gait, flexed head and body, primitive speech, severe mental retardation, 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
autosomal-recessive inheritance. The genetic nature of this syndrome suggests a backward stage in human evolution, which is most probably caused by a
genetic mutation, rendering, in turn, the transition from quadrupedality to bipedality. This would then be consistent with theories of punctuated evolution.
On the other hand, 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.}
}

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