The authors regret that “β” in the abstract of the published article was written as “β−”. The corrected abstract is as follows. The authors would like to apologize for any inconvenience caused. 

Abstract

Background: Bereavement can precipitate different forms of psychopathology, including prolonged grief disorder (PGD) and posttraumatic-stress disorder (PTSD) symptoms. How these symptoms influence each other is unclear. The aim of this study was to examine the temporal relationship of symptoms of PGD and PTSD following bereavement.

Background
Although previous research has focused on distinguishing cognitive styles between Bipolar Disorder (BD) and Major Depressive Disorder (MDD), little is known about differences in positive affect regulation between these affective groups. The aim of the present study was to extend previous research by investigating such differences between BD and MDD, and between the bipolar subtypes (BD-I vs. BD-II and predominant polarities), using large, clinical, outpatient samples.

The World Assumption Scale (WAS) is a frequently used measure in trauma research. The 32 items of the WAS are intended to represent eight assumptions about the benevolence of the world, the meaningfulness of events, and the worthiness of the self. Debate about the validity of the WAS is ongoing, particularly in terms of its empirical factor structure; some studies have confirmed a model of eight correlated factors whereas several other studies have not.

Background: A reciprocal relationship between activated innate immune system and changes in mood and behavior has been established. There is still a paucity of knowledge on how the immune system responds during psychiatric treatment. We aimed to explore circulating cytokines and assess psychiatric symptom severity scores during 12 weeks of inpatient psychiatric treatment.