{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T23:05:11Z","timestamp":1790291111177,"version":"4.1.0"},"reference-count":41,"publisher":"Cambridge University Press (CUP)","issue":"8","license":[{"start":{"date-parts":[[2024,1,29]],"date-time":"2024-01-29T00:00:00Z","timestamp":1706486400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Psychol. Med."],"published-print":{"date-parts":[[2024,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0033291723003811_sec_a1\"><jats:title>Background<\/jats:title><jats:p>Increased autocorrelation (AR) of system-specific measures has been suggested as a predictor for critical transitions in complex systems. Increased AR of mood scores has been reported to anticipate depressive episodes in major depressive disorder, while other studies found AR increases to be associated with depressive episodes themselves. Data on AR in patients with bipolar disorders (BD) is limited and inconclusive.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291723003811_sec_a2\" sec-type=\"methods\"><jats:title>Methods<\/jats:title><jats:p>Patients with BD reported their current mood via daily e-diaries for 12 months. Current affective status (euthymic, prodromal, depressed, (hypo)manic) was assessed in 26 bi-weekly expert interviews. Exploratory analyses tested whether self-reported current mood and AR of the same item could differentiate between prodromal phases or affective episodes and euthymia.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291723003811_sec_a3\" sec-type=\"results\"><jats:title>Results<\/jats:title><jats:p>A total of 29 depressive and 20 (hypo)manic episodes were observed in 29 participants with BD. Self-reported current mood was significantly decreased during the two weeks prior to a depressive episode (early prodromal, late prodromal), but not changed prior to manic episodes. The AR was neither a significant predictor for the early or late prodromal phase of depression nor for the early prodromal phase of (hypo)mania. Decreased AR was found in the late prodromal phase of (hypo)mania. Increased AR was mainly found during depressive episodes.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291723003811_sec_a4\" sec-type=\"conclusions\"><jats:title>Conclusions<\/jats:title><jats:p>AR changes might not be better at predicting depressive episodes than simple self-report measures on current mood in patients with BD. Increased AR was mostly found during depressive episodes. Potentially, changes in AR might anticipate (hypo)manic episodes.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0033291723003811","type":"journal-article","created":{"date-parts":[[2024,1,29]],"date-time":"2024-01-29T09:40:54Z","timestamp":1706521254000},"page":"1844-1852","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":13,"title":["Limited evidence of autocorrelation signaling upcoming affective episodes: a 12-month e-diary study in patients with bipolar disorder"],"prefix":"10.1017","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8475-8972","authenticated-orcid":false,"given":"V. 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