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Background: To review how daily symptom ratings have been used in research into premenstrual dysphoric disorder (PMDD), and to discuss opportunities for the future. Methods: PsycINFO and Medline were systematically searched, resulting in the inclusion of 75 studies in which (1) participants met the diagnostic criteria for late luteal phase dysphoric disorder (LLPDD) or PMDD and (2) diaries were used to study LLPDD/PMDD. Results: To date, diaries have been used to gain insight into the aetiology and phenomenology of PMDD, to examine associated biological factors, and to assess treatment efficacy. We found low consistency among the diaries used, and often only part of the menstrual cycle was analysed instead of the whole menstrual cycle. We also observed that there was substantial variability in diagnostic procedures and criteria. Limitations: This review excluded diary studies conducted in women with premenstrual syndrome, women seeking help for premenstrual complaints without a clear diagnosis, and women without premenstrual complaints. Conclusions: Prospective daily ratings of symptoms and related variables provide a valuable and important tool in the study of PMDD. This paper addresses some options for improving the use of diaries and proposes the use of experience sampling and ecological momentary assessment to investigate within-person variability in symptoms in more detail. (C) 2015 Elsevier B.V. All rights reserved.

Background Poor interpersonal functioning may represent a putative prodromal feature of major affective disorder. However, no studies have examined the naturalistic patterns of social behaviours among the offspring of parents with a major affective disorder. The present study assessed daily social interactions among 25 offspring of parents with bipolar disorder and 23 control participants in late adolescence and young adulthood. Methods Using event-contingent recording procedures, interpersonal behaviours and perceptions were assessed along four scales (quarrelsomeness, agreeableness, dominance, and submissiveness) and were measured during specific social interactions over 14 days. Results Multilevel modeling analyses revealed no group differences on any of the four scales, but gender by group interactions were was observed. High-risk males reported higher mean levels of quarrelsome behaviour and lower mean levels of agreeable behaviour than high-risk females, whereas low-risk males and females reported comparable levels of affiliative behaviours. High-risk participants reported more externalizing, but not internalizing, problems on the Achenbach Youth Self-Report Form than low-risk participants. Limitations Although event-contingent recording reduces the self-report bias associated with self-report questionnaires, participants may have been biased in the selection of interactions they chose to record. Conclusions Overall, the offspring of parents with BD, relative to controls, report no deficits in social functioning in the natural environment. However, high-risk youth displayed elevated externalizing problems and gender-specific patterns of social functioning that may precede the development of major affective disorder.