>> INTELLIGENCE - section: PSYCHOLOGY 2/7 <<
-
A few decades ago Charlotte Wolff1 reported dermatoglyphics can provide some clues related to
the intelligence of a subject, see table D-1.
-
Only a few years ago some Spanish researchers reported some supportive evidence from the hands of feeble minded children. In the hands of
62 feeble minded children these Spanish researchers observed a high number of arches and radial loops, and a high number of abnormal creases
was reported as well.
By the way, Wolff described more specific a relationship between low IQ and 'an arch pattern on the thumb' combined with 'abnormal creases'.
Table D-1: Observations by Wolff on feeble minded people (N = 412, IQ<70) and
a control group (N = 150, IQ>70).1.
|
-
|
-
Feeble minded
|
-
Control group
|
|
-
DIMENSION 1 - dermatoglyphics:
|
-
|
-
|
|
-
Arch pattern on the thumb
|
-
8.1 %
|
-
6.0 %
|
|
-
Arch patterns on fingertips
|
-
22.0 %
|
-
20.0 %
|
|
-
Whorl or loop on the thenar or hypothenar
|
-
25.6 %
|
-
15.0 %
|
|
-
DIMENSION 2 - morphology:
|
-
|
-
|
|
-
Small thumb
|
-
31.1 %
|
-
3.0 %
|
|
-
Short fifth finger
|
-
26.3 %
|
-
10.0 %
|
|
-
Missing crease on the on the fifth finger
|
-
2.2 %
|
-
0.0 %
|
|
-
Syndactyly (failure of finger differentiation)
|
-
1.0 %
|
-
0.0 %
|
|
-
Underdeveloped finger nails
|
-
33.3 %
|
-
2.0 %
|
|
-
Concave primitive fingernagels
|
-
9.8 %
|
-
0.0 %
|
|
-
DIMENSION 3 - creases:
|
-
|
-
|
|
-
Simian crease
|
-
19.9 %
|
-
2.0 %
|
|
-
Missing vertical palmar crease
|
-
27.0 %
|
-
5.0 %
|
|
-
Chaotic palmar creases
|
-
7.7 %
|
-
0.0 %
|
|
-
Short head line
|
-
9.6 %
|
-
1.0 %
|
|
-
Irregular developed head line
|
-
54.7 %
|
-
19.0 %
|
|
-
Short heart line
|
-
4.1 %
|
-
0.0 %
|
|
-
Irregular developed heart line
|
-
32.3 %
|
-
27.0 %
|
