{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T07:29:30Z","timestamp":1790494170752,"version":"4.1.0"},"reference-count":52,"publisher":"Wiley","issue":"13","license":[{"start":{"date-parts":[[2020,6,8]],"date-time":"2020-06-08T00:00:00Z","timestamp":1591574400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000925","name":"National Health and Medical Research Council","doi-asserted-by":"publisher","award":["1091415"],"award-info":[{"award-number":["1091415"]}],"id":[{"id":"10.13039\/501100000925","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000925","name":"National Health and Medical Research Council","doi-asserted-by":"publisher","award":["1130280"],"award-info":[{"award-number":["1130280"]}],"id":[{"id":"10.13039\/501100000925","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Human Brain Mapping"],"published-print":{"date-parts":[[2020,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Complex regional pain syndrome (CRPS) is a chronic neuropathic pain disorder that typically occurs in the limbs, usually the upper limb. CRPS usually develops from a peripheral event but its maintenance relies on changes within the central nervous system. While functional abnormalities in the thalamus and primary somatosensory cortex (S1) of the brain are some of the most consistently reported brain findings in CRPS, the mechanisms are yet to be explored in full, not least of all how these two regions interact and how they might relate to clinical deficits, such as the commonly reported poor tactile acuity in this condition. This study recruited 15 upper\u2010limb CRPS subjects and 30 healthy controls and used functional magnetic resonance imaging (fMRI) to investigate infra\u2010slow oscillations (ISOs) in critical pain regions of the brain in CRPS. As hypothesised, we found CRPS was associated with increases in resting signal intensity ISOs (0.03\u20130.06\u2009Hz) in the thalamus contralateral to the painful limb in CRPS subjects. Interestingly, there was no such difference between groups in S1, however CRPS subjects displayed stronger thalamo\u2010S1 functional connectivity than controls, and this was related to pain. As predicted, CRPS subjects displayed poor tactile acuity on the painful limb which, interestingly, was also related to thalamo\u2010S1 functional connectivity strength. Our findings provide novel evidence of altered patterns of resting activity and connectivity in CRPS which may underlie altered thalamocortical loop dynamics and the constant perception of pain.<\/jats:p>","DOI":"10.1002\/hbm.25087","type":"journal-article","created":{"date-parts":[[2020,6,8]],"date-time":"2020-06-08T12:46:40Z","timestamp":1591620400000},"page":"3781-3793","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["Altered resting activity patterns and connectivity in individuals with complex regional pain syndrome"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9642-0805","authenticated-orcid":false,"given":"Flavia","family":"Di Pietro","sequence":"first","affiliation":[{"name":"Department of Anatomy and Histology Brain and Mind Centre, University of Sydney  Sydney Australia"},{"name":"School of Pharmacy and Biomedical Sciences Faculty of Health Sciences, Curtin University  Perth Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Barbara","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Anatomy and Histology Brain and Mind Centre, University of Sydney  Sydney Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1026-0151","authenticated-orcid":false,"given":"Luke A.","family":"Henderson","sequence":"additional","affiliation":[{"name":"Department of Anatomy and Histology Brain and Mind Centre, University of Sydney  Sydney 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