[A multi-dimensional approach to delusional ideation in normal people: comparison with paranoid ideation and guarded ideation].

Recent studies reported that normal people have delusional ideation. The purpose of the present study is to compare the types of delusional ideation in normal people by using the multi-dimensional scale. We examined the differences between paranoid ideation and guarded ideation, because these ideations represented delusional ideation. The multi-dimensional scale has seven dimensions: resistance, unpleasant feeling, conviction, incorrigibility, preoccupation, dismissibility and reassurance. This scale was administered to 471 college students. The results demonstrated higher scores on resistance, unpleasant feeling, preoccupation, dismissibility and reassurance than that of guarded ideation. On the other hands, guarded ideation showed higher score on conviction and incorrigibility. These findings seemed similar to previous studies on patients with delusions. The results of present study may be indicative of the continuity view of psychosis.