Thirty-six patients (19 males, 17 females: atypical schizophrenia; 3, typical schizophrenia;
9
, depression; 11, neurosis and other psychiatric disorders;
8
) were operated on according to orbitoventromedial undercutting by Hirose. In all cases, the Rorschach test was carried out and daily behaviors were studied. Thirty-one scales of the test were subjected to multivariate analysis whereas the behaviors were evaluated according to the following criteria, i.
e
., A: recovered or symptom free,
B
: markedly improved,
C
: moderately improved, D: slightly improved and
E
: not improved. The following results were obtained.
1) The evaluation of behaviors is as follows. A: 12 cases,
B
:
9
,
C
:
9
, D:
6
,
E
: none.
2
) It was found that scores of F+106% and R+106% scales were significantly higher after the operation than before; that correlation coefficients between the scores before and after the operation were considerably high.
3) Factor analysis followed by varimax rotation was carried out. Six factors were extracted, i.
e
., (F1) sensitivity to emotional stimuli, (F
2
) ego-strength, (F3) obsessional rigidity, (F4) reaction time, (F
5
) anxiety and tension and (F
6
) empathy. It was revealed that F
2
was high in atypical schizophrenia, depression and neurosis, and that F
2
and F
6
were significantly different in terms of the factor scores among the four groups A,
B
,
C
and D; F
2
was highest in A, and lowest in D regardless of whether it was before or after the operation. F
6
showed high scores in both A and
C
, and low in D.
4) Multiple discriminant analysis was applied to the data of the Rorschach test before the operation, by classifying 36 subjects into the four groups A,
B
,
C
and D. As a result, high rates of correct diagnosis were obtained, i.
e
., 100% for A, 78% for
B
, 56% for
C
and 100% for D. When the groups
C
and D were combined into one group (
C
+D) the highest percentage (100%) was seen in A, followed by
B
(
89
%) and
C
+D group (87%). When the groups A and
B
were combined into one group (A+
B
), the percentages of correct diagnosis were
81
% for A+
B
, and
93
% for
C
+D.
In conclusion, it can be said that scales of the Rorschach test have been proved to be valid for predicting mental and physical states after the orbito-ventromedial undercutting.
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