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 %|