智力低下者皮纹特征研究

通过对８３例智力低下者（男５８人，女２５人，ＩＱ２５～８９）的１７项指纹指标和７项掌纹指标特征的观察分析，并与７５２例中等智力者（男３７０人，女３８２人，ＩＱ９０～１０９）的指纹和掌纹进行比较。结果表明，两组间有１０项指标存在显著差异或高度差异，其中Ｗｃ、Ｗｂ、ｗＡｃ、Ｌ、Ｓｄ和Ｔｈ／１的真实花纹等６项指标与智力呈负相关；Ｗｓ、ｗｄｌ、Ｌｕ、ＰＴＣ等４项指标与智力呈正相关。同时，作者提出了Ｗｃ、Ｗｂ、ＷＡｃ、Ｓｄ和ＰＴＣ的正常值，其可作为判定智力低下的重要生物学指标，为筛查弱智儿童提供了一种简便易行的方法。作者还为皮纹学的研究方向提出了新的建议。同时，作者还发现了一种新的皮纹型，暂命名为Ｗｂ。

OBSERVATION ON DERMOGLYPLICS CHARACTERISTICS OF EINGERPRINTS AND PALMPRINTS IN HYPOPHRENIC PEOPLE

Dermoglyphics characteristics of fingerprints and palmprints wereobservated with 17 indexes of fingerprints and 7 indexes of palmprints in 83 hypophrenicpersons including 58 males and 25 females(IQ 25-89) ,and compared with those in 752moderate mentality persons who included 382 males and 370 females (IQ 90-109).There were significently difference in the 10 indexes between the two groups; The 6indexes,Wc,WB, WAc,L ,Sd and Th/I,were negative correlation with mentality;The 4indexes,Ws,Wdl,Lu and PTC, were positive correlation with mentality. The authorsbelieve that the normal values of Wc,Wb, WAc,Sd and PTC may be used as importantbiological indexes for judging whether the persons are hypophrenia or not,and it is asimple method for screening hypophrenic children.A new type of cleavage line ,namedWb,was discovered by our study.