Wolff P H, Gardner J, Paccla J, Lappen J
Children's Hospital, Boston, MA 02115.
Am J Ment Retard. 1989 Jan;93(4):406-11.
Mentally retarded males with a fragile site on the X chromosome (Xq27) were observed to exhibit a highly idiosyncratic but well-coordinated, stereotypic form of gaze avoidance during greeting ceremonies that involved the whole upper body. A comparison group of persons with other etiologically defined syndromes of mental retardation did not. Results suggest that the aberrant greeting behavior may be uniquely associated with one syndrome of mental retardation with a defined genetic etiology. The behavior pattern does not appear until middle childhood, however, and its developmental induction remains to be explained.
在涉及整个上半身的问候仪式中，观察到患有X染色体（Xq27）脆性位点的智力迟钝男性表现出一种高度特异但协调良好的刻板的目光回避形式。一组由其他病因明确的智力迟钝综合征患者组成的对照组则没有这种表现。结果表明，这种异常的问候行为可能与一种具有明确遗传病因的智力迟钝综合征独特相关。然而，这种行为模式直到童年中期才出现，其发育诱导机制仍有待解释。
