Depressed individuals have been characterized to lack cognitive resources during thought suppression. In order to probe psychological mechanisms underlying this phenomenon, we compared response latencies among depressed and non-depressed college students under lexical decision task. Seventy-three participants judged whether a presented letter string was a word or not while thinking or not thinking various concepts. The depressed individuals performed better than the non-depressed, only under the suppression instruction, suggesting that the depressed failed to allocate cognitive resource to the suppression task under the condition. Implications for the study of cognitive processes taking place among the depressed are discussed.
The relationship between Kretschmer's temperament types and Jung's psychological types of introversion and extraversion was investigated. Undergraduates, 304 in total, completed the common items of Type-Trait Integrated Questionnaire and Jung's Psychological Types Scale. Results indicated that cyclothymic temperament (syntonic) scores correlated positively with extraversion-introversion scores, and that schizothymic temperament scores correlated negatively with extraversion-introversion scores. In addition, there were significantly more extraverted types than introverted types in cyclothymic personality type, and there were significantly more introverted types than extraverted types in schizothymic personality type. These findings supported previous theoretical studies.
Self-leakage is defined as a subjective sense that one's inner state is leaking out for others to know without verbal expression, causing anticipation of negative outcomes. A similar phenomenon is egorrhea symptoms of “taijin kyofusho” (social phobia). The mechanism of self-leakage has not yet been hypothesized, and we aimed at proposing a causal model in the present study. Path analysis suggested that self-leakage was partly caused by the tendency to have delusional ideations and trait anxiety, i.e., interpretation bias. But, contrary to our prediction, social anxiety, fear of negative evaluation, and public self-consciousness did not have enough influence on self-leakage.