Program

Poster
PS25P-06-282

The relationship between projective psychological test score and the structure of human brain.

[Speaker] Saito, Daisuke N:1
[Co-author] Uchiumi, Chigusa:2, Aizawa, Naoki:3, Makita, Kiyoshi:4, Nakamura, Yugo:5, Ishibashi, Masahiro:5
1:Fukui Univ. (Japan), 2:The University of Tokushima (Japan), 3:Kobe University (Japan), 4:Faculty of Psychological and Physical Science, Aichi Gakuin University (Japan), 5:Osaka Kyoiku Univ. (Japan)

In order to investigate the relationship between projective psychological test score and the structure of human brain, we conduct brain structure analysis (VBM: Voxel-based morphometry).
In our study, 40 right-handed adult participants with no history of neurological or psychiatric illness were measured their whole brain structure using 3.0T MRI scanner (T1 weighted image). The projective psychological test score was evaluated using the Rorschach Inkblot Method (RIM), published as "Psychodiagnostik" by a Swiss psychiatrist Hermann Rorschach in 1921.
As a result, a significant positive correlation between psychological test score and brain volume was observed in right Orbitofrontal cortex on Affective Ratio (Afr) (Rorschach variable that is related to willingness to engage in emotionally charged situations)(p < .001).
Our study revealed that the projective psychological test score reflect volume change of brain structure. And, it was possible to indicate biological validity of projective psychological test.
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