{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T17:34:10Z","timestamp":1791999250058,"version":"4.4.0"},"reference-count":37,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2008,1,24]],"date-time":"2008-01-24T00:00:00Z","timestamp":1201132800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Human Brain Mapping"],"published-print":{"date-parts":[[2008,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The default\u2010mode network (DMN) is a set of specific brain regions whose activity, predominant in the resting\u2010state, is attenuated during cognitively demanding, externally\u2010cued tasks. The cognitive correlates of this network have proven difficult to interrogate, but one hypothesis is that regions in the network process episodic memories and semantic knowledge integral to internally\u2010generated mental activity. Here, we compare default\u2010mode functional connectivity in the same group of subjects during rest and conscious sedation with midazolam, a state characterized by anterograde amnesia and a reduced level of consciousness. Although the DMN showed functional connectivity during both rest and conscious sedation, a direct comparison found that there was significantly reduced functional connectivity in the posterior cingulate cortex during conscious sedation. These results confirm that low\u2010frequency oscillations in the DMN persist and remain highly correlated even at reduced levels of consciousness. We hypothesize that focal reductions in DMN connectivity, as shown here in the posterior cingulate cortex, may represent a stable correlate of reduced consciousness. Hum Brain Mapp, 2008. \u00a9 2008 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/hbm.20537","type":"journal-article","created":{"date-parts":[[2008,1,24]],"date-time":"2008-01-24T11:17:05Z","timestamp":1201173425000},"page":"839-847","source":"Crossref","is-referenced-by-count":470,"title":["Persistent default\u2010mode network connectivity during light sedation"],"prefix":"10.1002","volume":"29","author":[{"given":"Michael 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