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Recently, the information-theoretic \u201ccomplexome\u201d framework has linked FC to coinciding \u201ccomplexity drops\u201d: transient moments in which regional BOLD signals simultaneously become regular. Here, we replicate this relationship in an independent dataset and extend the framework by (a) integrating it with signal cofluctuation analysis; (b) extending the previous binary concept of simultaneous complexity drops to a continuous, threshold-free calculation based on a temporal unwrapping procedure; (c) providing evidence of clinical relevance in the model disease of anti-N-methyl-D-aspartate-receptor encephalitis; and (d) deriving a new measure of pairwise dissimilarity in local BOLD patterns. This \u201cindex of pattern incongruency\u201d (IPI) explains clinically relevant FC reductions and maps onto distinct associations with cognition beyond FC. These findings show that global FC is closely related to local patterns within underlying BOLD signals, strengthening the link between complexity dynamics and the brain\u2019s functional organization as a large-scale network.<\/jats:p>","DOI":"10.1162\/netn.a.572","type":"journal-article","created":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T20:17:06Z","timestamp":1776889026000},"page":"761-786","update-policy":"https:\/\/doi.org\/10.1162\/mitpressjournals.corrections.policy","source":"Crossref","is-referenced-by-count":1,"title":["Functional connectivity is linked to symbolic BOLD patterns: Replication, extension, and clinical application of the human \u201cComplexome\u201d"],"prefix":"10.1162","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1257-9593","authenticated-orcid":true,"given":"Amy","family":"Romanello","sequence":"first","affiliation":[{"name":"Department of Neurology and Experimental Neurology, Charit\u00e9-Universit\u00e4tsmedizin Berlin, 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