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裕弥藤原

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It has been reported that anxious subjects attend selectively to threat information, and especial... more It has been reported that anxious subjects attend selectively to threat information, and especially to the threat information that is congruent with their individual concern. In this study, 15 high trait anxiety and 15 low trait anxiety subjects performed a dot-probe task. Reaction times to threat words that were congruent or incongruent with their cocern were measured in high and low state anxiety states. The results showed that high trait anxiety subjects attended to the threat words of their concern in both states, while low trait anxiety subjects only in high anxiety state

JAPANESE JOURNAL OF RESEARCH ON EMOTIONS, 2013

The Proceedings of the Annual Convention of the Japanese Psychological Association, Sep 10, 2014

Japanese Journal of Behavior Therapy

The current study sought to investigate the relationship between the focus of attention and state... more The current study sought to investigate the relationship between the focus of attention and state anxiety during a public speaking situation involving social anxiety. In a preliminary

The Proceedings of the Annual Convention of the Japanese Psychological Association, Sep 22, 2015

The Proceedings of the Annual Convention of the Japanese Psychological Association, 2018

The Proceedings of the Annual Convention of the Japanese Psychological Association, 2011

Journal of the Graduate School of Biosphere Science Hiroshima University, 2003

International Journal of Behavioral Medicine, 2015

Background An innovative measurement system using a computerized adaptive testing technique based... more Background An innovative measurement system using a computerized adaptive testing technique based on the item response theory (CAT) has been expanding to measure mental health status. However, little is known about details in its measurement properties based on the empirical data. Moreover, the response time (RT) data, which are not available by a paper-and-pencil measurement but available by a computerized measurement, would be worth investigating for exploring the response behavior. Purpose We aimed at constructing the CAT to measure depressive symptomatology in a community population and exploring its measurement properties. Also, we examined the relationships between RTs, individual item responses, and depressive levels. Method For constructing the CAT system, responses of 2061 workers and university students to 24 depression scale plus four negatively revised positive affect items were subjected to a polytomous IRT analysis. The stopping rule was set for standard error of estimation < 0.30 or the maximum 15 items displayed. The CAT and non-adaptive computer-based test (CBT) were administered to 209 undergraduates, and 168 of them administered again after 1 week. Results On average, the CAT was converged by 10.4 items. The θ values estimated by CAT and CBT were highly correlated (r=0.94 and 0.95 for the 1st and 2nd measurements) and with the traditional scoring procedures (r's>0.90). The testretest reliability was at a satisfactory level (r=0.86). RTs to some items significantly correlated with the θ estimates. The mean RT varied by the item contents and wording, i.e., the RT to positive affect items required additional 2 s or longer than the other subscale items. Conclusion The CAT would be a reliable and practical measurement tool for various purposes including stress check at workplace.

THE JAPANESE JOURNAL OF RESEARCH ON EMOTIONS, 1999