- Hand Reading Mini-Course -

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Hand Diagnostics & Psychiatry:

psychosis - broken skin ridges, abnormal lines & simian crease

Both the study performed by van Os¹ and the study performed by Rosa² have shown that 'broken skin ridges' are frequently observed in the hands of psychotic people, see table C-8 and figure C-3 (see page 17).

Table C-8: 'broken skin ridges' and 'abnormal lines' in psychotic people¹.

- Percentages	- Control group (N=26)	- Psychotic people (N=38)
- Broken skin ridges	- 4 %	- 19 %
- Abnormal lines	- 15 %	- 50 %
- 1 of both features	- 15 %	- 55 %

LEVEL 2: hand morphology and psychotic behavior

Research on the relationship between the hand morphology and psychotic behavior is very rare.

LEVEL 3: the lines and psychotic behavior

Three studies have presented evidence which shows a relationship between the palmar lines and psychotic behavior. Again the simian crease appears to be a relevant factor. In the study presented by Hilbun³ the hands of 3 out of 20 children (=15%) showed simian crease in both hands.

The studies by van Os¹ and Rosa² indicate that the hands of psychotic people are frequently featured with 'abnormal lines' (see table C-8 above).

Sources:

1 - Van Os, J. et al. (1997). Dermatoglyphic findings on a group of psychotic children. The Journal of nervous and mental disease, 41, p.624-626.
2 - Rosa, A. et al. (2000). Congenital dermatoglyphic malformations and psychosis: a twin study. American Journal of psychiatry, Sep; 157(9): p.1511-1513.
3 - Hilbun, w.B. (1970). Dermatoglyphic findings on a group of psychotic children. The journal of nervous and mental disease, vol.151, no.5, p.352-358.

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