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
., (
F
1) sensitivity to emotional stimuli, (
F
2) ego-strength, (
F
3
) obsessional rigidity, (
F
4
) 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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