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Supplement Figure: The results of canonical discriminant analysis. On function 1, a distribution toward the positive direction was affected by higher Hopelessness/ Suicidality (HOP) and Rumination (RUM). Function 2 was non-significant. The size of graphics represents the number of similar survey data. As shown in this figure, the group centroids of control group and single episode group were negative direction, whereas the centroid of recurrent group was opposite direction. Therefore, the recurrent group could be distinguished by the high HOP and RUM profile.

Supplement Figure: The results of canonical discriminant analysis. On function 1, a distribution toward the positive direction was affected by higher Hopelessness/ Suicidality (HOP) and Rumination (RUM). Function 2 was non-significant. The size of graphics represents the number of similar survey data. As shown in this figure, the group centroids of control group and single episode group were negative direction, whereas the centroid of recurrent group was opposite direction. Therefore, the recurrent group could be distinguished by the high HOP and RUM profile.

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The present study examined cognitive vulnerability to relapses of depression by clarifying the characteristics of "cognitive reactivity" in people with recurrent major depressive episodes. Study 1-1 and 1-2 developed a Japanese version of the Leiden Index of Depression Sensitivity-Revised (LEIDS-R), which assessed cognitive reactivity, and evaluate...

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... Numerous previous studies have reported that people with a history of depression are more likely to demonstrate cognitive biases, such as dysfunctional attitudes (6,7), biased attention (8,9), biased interpretation (10,11), and biased memory (12,13) after the induction of negative mood. While such cognitive reactivity has mainly been assessed using behavioral and subjective measures (14,15), several findings have highlighted the low sensitivity of these measurements (16,17). As such, the underlying biological mechanisms of cognitive reactivity are yet to be identified. ...
... Participants completed two questionnaires prior to the experimental task. These were the (i) Japanese version of the Beck Depression Inventory-II (BDI-II) (35,36) and (ii) Japanese version of the Leiden Index of Depression Sensitivity-Revised (LEIDS-R) (15,37). ...
... Participants indicated whether and how their thinking patterns change when they feel down or are experiencing a low mood. The LEIDS-R has favorable psychometric properties, including adequate internal consistency, test-retest reliability, and concurrent and predictive validity (15). The subscales of the LEIDS-R are Hopelessness/Suicidality, Acceptance/Coping, Aggression, Control/Perfectionism, Risk Avoidance, and Rumination. ...
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... LEIDS-R scores distinguished previously depressed individuals from never-depressed controls in at least six studies (Elgersma et al., 2015;Merens, Booij, & Van Der Does, 2008;Moulds et al., 2008;Raes, Dewulf, Van Heeringen, & Williams, 2009;Van der Does, 2002, 2005. LEIDS-R scores also differentiated between recurrently depressed patients and those with a single prior episode in two studies (Elgersma et al., 2015;Yamamoto, Yamano, Shimada, Ichikawa, & Nakaya, 2014). Furthermore, total LEIDS-R scores predicted depression vulnerability above and beyond rumination scores as measured by the Ruminative Response Scale (Moulds et al., 2008). ...
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