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This variability could be attributable to chronic pain groups typically being examined as homogenous populations, without consideration being given to potential diagnosis\u2010specific differences. Indeed, while emerging work has compared individuals with chronic pain to healthy controls, no previous studies have examined differences in PAF between diagnoses or across chronic pain subtypes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>To address this gap, we reanalysed a dataset of resting state EEG previously used to demonstrate a lack of difference in PAF between individuals with chronic pain and healthy controls. In this new analysis, we separated patients by diagnosis before comparing PAF across three subgroups: chronic widespread pain (<jats:italic>n<\/jats:italic>\u2009=\u200930), chronic back pain (<jats:italic>n<\/jats:italic>\u2009=\u200938), and healthy controls (<jats:italic>n<\/jats:italic>\u2009=\u200987).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We replicate the original finding of no significant difference between chronic pain groups and controls, but also find that individuals with widespread pain had significantly higher global average PAF values than those of people with chronic back pain [<jats:italic>p<\/jats:italic>\u2009=\u20090.028, <jats:italic>\u03b2<\/jats:italic>\u2009=\u20090.25\u2009Hz] after controlling for age, sex, and depression.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>These novel findings reveal PAF values in individuals with chronic pain may be diagnosis\u2010specific and not uniformly shifted from the values of healthy controls. Future studies should account for diagnosis and be cautious with exploring homogenous \u2018chronic pain\u2019 classifications during investigations of PAF.<\/jats:p><\/jats:sec><jats:sec><jats:title>Significance<\/jats:title><jats:p>Our work suggests that, contrary to previous hypotheses, inter\u2010individual differences in PAF reflect diagnosis\u2010specific mechanisms rather than the general presence of chronic pain, and therefore may have important implications for future work regarding individually\u2010tailored pain management strategies.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ejp.4737","type":"journal-article","created":{"date-parts":[[2024,10,7]],"date-time":"2024-10-07T10:36:35Z","timestamp":1728297395000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Peak alpha frequency differs between chronic back pain and chronic widespread pain"],"prefix":"10.1002","volume":"29","author":[{"given":"Natalie","family":"McLain","sequence":"first","affiliation":[{"name":"Division of Biokinesiology and Physical Therapy University of Southern California  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9499-1703","authenticated-orcid":false,"given":"Rocco","family":"Cavaleri","sequence":"additional","affiliation":[{"name":"Division of Biokinesiology and Physical Therapy University of Southern California  Los Angeles California USA"},{"name":"Brain Stimulation and Rehabilitation (BrainStAR) Lab, School of Health Sciences Western Sydney University  Sydney New South Wales Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jason","family":"Kutch","sequence":"additional","affiliation":[{"name":"Division of Biokinesiology and Physical Therapy University of Southern California  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,10,7]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1001\/archinte.160.2.221"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.12688\/f1000research.8105.2"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/ejp.1090"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neulet.2004.08.041"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/AJP.0000000000000755"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.brs.2011.12.003"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.2147\/JPR.S128508"},{"key":"e_1_2_8_9_1","doi-asserted-by":"crossref","unstructured":"Beck A. 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