The Ulas family of 19 is from rural southern Turkey. Five of the family (except for another, who has died) walk on all fours with their feet and the palms of their hands in what is called a "bear crawl". Their quadrupedal gait has never been reported in anatomically intact adult humans. The gait is different from the knuckle-walking quadrupedal gait of apes. In 2006, the family was the subject of a documentary: The Family That Walks On All Fours.
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| - Ulas family (en)
- 乌纳塔恩综合征 (zh)
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| - 乌纳塔恩综合征(Unertan Syndrome)是土耳其(Çukurova University)的心理学教授乌纳·塔恩(Üner Tan)在土耳其南部的一个偏僻的村落里发现的一种症状。有一户21口人的家庭,其中5兄妹无法直立行走,只能用四肢爬行。乌纳·塔恩在2005年3月的《》上发表了他的论文,迅速引起众多科学家的关注。英国《泰晤士报》对此进行了报道,这种病症以乌纳·塔恩的名字命名。 这户家庭中父母一共生育了19个子女,其中5个表现出乌纳塔恩综合征,其余子女正常。五兄妹在爬行时手指上翘,手掌着地,因此手掌跟部长有厚茧,如同正常人脚跟部的茧。他们的爬行速度很快,爬行起来十分流畅,四肢协调性与黑猩猩类似。他们也能站立行走很短一段路。 患有乌纳塔恩综合征的五兄妹智力水平十分低下,只能掌握为数不多的单词,无法组织起完整的句子,也无法从一数到十,没有时间概念。乌纳塔恩综合征的发现在科学界当中引起了广泛的争论。乌纳·塔恩教授认为,这是由于人类第17号染色体上的某个基因发生了突变造成的,是一种人类当中的返祖现象,对了解原始人从四肢爬行进化到直立行走的过程,具有重要的启示意义。反对者认为,单个基因突变不可能造成返祖现象,直立行走是基因发生非常复杂的变化导致的结果。因此这五兄妹并非返祖现象,而是一种行为异常现象。 (zh)
- The Ulas family of 19 is from rural southern Turkey. Five of the family (except for another, who has died) walk on all fours with their feet and the palms of their hands in what is called a "bear crawl". Their quadrupedal gait has never been reported in anatomically intact adult humans. The gait is different from the knuckle-walking quadrupedal gait of apes. In 2006, the family was the subject of a documentary: The Family That Walks On All Fours. (en)
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| - The Ulas family of 19 is from rural southern Turkey. Five of the family (except for another, who has died) walk on all fours with their feet and the palms of their hands in what is called a "bear crawl". Their quadrupedal gait has never been reported in anatomically intact adult humans. The gait is different from the knuckle-walking quadrupedal gait of apes. In 2006, the family was the subject of a documentary: The Family That Walks On All Fours. The affected siblings have a form of non-progressive congenital cerebellar ataxia. The brain impairments include cerebellar hypoplasia, mild cerebral cortex atrophy and a reduced corpus callosum. They are also mildly intellectually disabled and have problems in balancing on two legs. However, they do not show the poor coordination of hands, speech, and eye movements often found in cerebellar ataxia. The four sisters can do needlework. They all share a recessive mutation on chromosome 17p. (en)
- 乌纳塔恩综合征(Unertan Syndrome)是土耳其(Çukurova University)的心理学教授乌纳·塔恩(Üner Tan)在土耳其南部的一个偏僻的村落里发现的一种症状。有一户21口人的家庭,其中5兄妹无法直立行走,只能用四肢爬行。乌纳·塔恩在2005年3月的《》上发表了他的论文,迅速引起众多科学家的关注。英国《泰晤士报》对此进行了报道,这种病症以乌纳·塔恩的名字命名。 这户家庭中父母一共生育了19个子女,其中5个表现出乌纳塔恩综合征,其余子女正常。五兄妹在爬行时手指上翘,手掌着地,因此手掌跟部长有厚茧,如同正常人脚跟部的茧。他们的爬行速度很快,爬行起来十分流畅,四肢协调性与黑猩猩类似。他们也能站立行走很短一段路。 患有乌纳塔恩综合征的五兄妹智力水平十分低下,只能掌握为数不多的单词,无法组织起完整的句子,也无法从一数到十,没有时间概念。乌纳塔恩综合征的发现在科学界当中引起了广泛的争论。乌纳·塔恩教授认为,这是由于人类第17号染色体上的某个基因发生了突变造成的,是一种人类当中的返祖现象,对了解原始人从四肢爬行进化到直立行走的过程,具有重要的启示意义。反对者认为,单个基因突变不可能造成返祖现象,直立行走是基因发生非常复杂的变化导致的结果。因此这五兄妹并非返祖现象,而是一种行为异常现象。 (zh)
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