Siblings in Kars, Turkey, with Uner Tan syndrome (quadrupedal locomotion, severe mental retardation, and no speech): a novel theory for the evolution of human bipedalism

Tan U.

NEUROLOGICAL RESEARCH, vol.37, no.2, pp.139-146, 2015 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 2
  • Publication Date: 2015
  • Doi Number: 10.1179/1743132814y.0000000433
  • Title of Journal : NEUROLOGICAL RESEARCH
  • Page Numbers: pp.139-146


Objective: To investigate siblings from Kars (n = 2), Turkey, with diagonal-sequence quadrupedal locomotion (QL), severe mental retardation, and no speech (Uner Tan syndrome, UTS), in relation to the evolutionary emergence of human bipedal locomotion (BL).