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Memory problems
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[[File:Working-memory-en.svg|400px|thumb|right|[https://en.wikipedia.org/wiki/Baddeley%27s_model_of_working_memory Baddeley's model of working memory]]] '''Memory problems''' in [[ME/CFS|myalgic encephalomyelitis]] can be very disabling. Mental fatigue makes memory problems worse but does not account for all memory deficiencies in people with [[ME/CFS]]. A 2006 study by the [[Centers for Disease Control and Prevention|CDC]] found that patients with [[chronic fatigue syndrome|CFS]] and high complaints of mental fatigue exhibited significant impairment in working memory.<ref name="Capuron, 2006" /> [[Fibromyalgia]] patients also report having problems with memory and refer to it as [[fibro fog]]. ==Presentation== ==Prevalence== *In a 2001 Belgian study, 85.6% of patients meeting the [[Fukuda criteria]] and 89.3% of patients meeting the [[Holmes criteria]], in a cohort of 2073 [[chronic fatigue syndrome|CFS]] patients, reported memory problems.<ref>{{Cite journal | last = De Becker | first = Pascale | authorlink = Pascale De Becker | last2 = McGregor | first2 = Neil | authorlink2 = Neil McGregor | last3 = De Meirleir | first3 = Kenny | authorlink3 = Kenny De Meirleir | date = December 2001 | title = A definition‐based analysis of symptoms in a large cohort of patients with chronic fatigue syndrome|url=https://onlinelibrary.wiley.com/doi/full/10.1046/j.1365-2796.2001.00890.x?sid=nlm%3Apubmed|journal=Journal of Internal Medicine|volume=250|issue=3|pages=234–240|doi=10.1046/j.1365-2796.2001.00890.x|quote=|via=}}</ref> ==Symptom recognition== *In the [[Canadian Consensus Criteria]], impairment of concentration and short-term memory consolidation is an optional criteria for diagnosis, under the section ''Neurological/Cognitive Manifestations''.<ref>[http://sacfs.asn.au/download/consensus_overview_me_cfs.pdf ''A Clinical Case Definition and Guidelines for Medical Practitioners: An Overview of the Canadian Consensus Document''] Pg 8. 2005.</ref> *In the [[Fukuda criteria]], the symptom of substantial impairment in short-term memory can be used to help form a diagnosis.<ref>{{Cite web|url=http://www.cfids-me.org/cdcdefine.html | title = Fukuda (1994) Definition for Chronic Fatigue Syndrome (CFS) | website = cfids-me.org|access-date=2018-08-10}}</ref> *In the [[Holmes criteria]], '''forgetfulness''' is an optional criteria for diagnosis, under the section ''Minor Symptom Criteria - Neuropsychologic Complaints''.<ref>{{Cite web|url=http://www.cfids-me.org/holmes1988.html | title = Holmes Definition of Chronic Fatigue Syndrome, U.S. CDC 1988 | website = cfids-me.org|access-date=2018-08-10}}</ref> Memory issues that begin after COVID-19 are a potential symptom of [[Long COVID]] in the [[World Health Organization Long COVID diagnostic criteria|World Health Organization]]'s definition.<ref name="WHO-longcovid-criteria">{{citation | title = A clinical case definition of post COVID-19 condition by a Delphi consensus | date =Oct 6, 2021 |publisher=[[World Health Organization]] | others = World Health Organization (WHO) clinical case definition working group on post COVID-19 condition | first1 = Joan B. | last1 = Soriano | first2 = Maya | last2 = Allan | first3 = Carine | last3 = Alsokhn | first4 = Nisreen A. | last4 = Alwan | authorlink4 = Nisreen Alwan | first5 = Lisa | last5 = Askie | first6 = Hannah E. | last6 = Davis | authorlink6 = Hannah Davis | first7 = Janet V. | last7 = Diaz | first8 = Tarun | last8 = Dua | first9 = Wouter | last9 = de Groote | first10 = Robert | last10 = Jakob | first11 = Marta | last11 = Lado | first12 = John | last12 = Marshall | first13 = Srin | last13 = Murthy | first14 = Jacobus | last14 = Preller | first15 = Pryanka | last15 = Relan | first16 = Nicoline | last16 = Schiess | first17 = Archana | last17 = Seahwag | ref = WHO reference number: WHO/2019-nCoV/Post_COVID-19_condition/Clinical_case_definition/2021.1 | url = https://www.who.int/publications-detail-redirect/WHO-2019-nCoV-Post_COVID-19_condition-Clinical_case_definition-2021.1}}</ref> ==Notable studies== *2006, [[Cognitive dysfunction]] relates to subjective report of mental fatigue in patients with [[chronic fatigue syndrome]]<ref name="Capuron, 2006" /> [https://www.nature.com/articles/1301005 (Full text)] ==Possible causes== ==Potential treatments== ==See also== *[[Aphasia]] *[[Cognitive dysfunction]] *[[Dyscalculia]] *[[Dysphasia]] *[[Word-finding problems]] ==Learn more== *Jun 4, 2018, [https://www.meaction.net/2018/06/04/victory-for-me-disability-claim-court-upholds-plaintiffs-lawsuit-after-being-denied-disability/ Victory For ME Disability Claim – U.S. Court Upholds Plaintiff's Lawsuit After Being Denied Disability]<ref name=":032">{{Cite web|url=https://www.meaction.net/2018/06/04/victory-for-me-disability-claim-court-upholds-plaintiffs-lawsuit-after-being-denied-disability/ | title = Victory for ME Disability Claim - U.S. Court Upholds Plaintiff's Lawsuit After Being Denied Disability | last = Tillman | first = Adriane | authorlink= | date = 2018-06-04 | website = #MEAction|language=en-US|archive-url=|archive-date=|url-status=|access-date=2019-02-02}}</ref> :[[Brian Vastag]] was able to prove with [[qEEG]] and [[Cognitive dysfunction|cognitive]] tests he had "significant problems with [[Visual dysfunction|visual perception]] and analysis, scanning speed, attention, visual motor coordination, motor and mental speed, memory, and [[Word-finding problems|verbal fluency]]" winning his long term disability (LTD) claim.<ref name=":032" /> ==References== <references> <ref name="Capuron, 2006">{{Citation | last = Capuron | first1 = Lucile | authorlink1 = | last2 = Welberg | first2 = Leonie | authorlink2 = | last3 = Heim | first3 = Christine | authorlink3 = | last4 = Wagner | first4 = Dieter | authorlink4= | last5 = Solomon | first5 = Laura | authorlink5 = | last6 = Papanicolaou | first6 = Dimitris A | authorlink6 = | last7 = Craddock | first7 = R Cameron | authorlink7 = | last8 = Miller | first8 = Andrew H | authorlink8 = | last9 = Reeves | first9 = William C | authorlink9 = William Reeves | title = Cognitive Dysfunction Relates to Subjective Report of Mental Fatigue in Patients with Chronic Fatigue Syndrome | journal = Neuropsychopharmacology | volume = 31 | issue = | page = 1777–1784 | date = 2006 | doi = 10.1038/sj.npp.1301005 }}</ref> </references> [[Category:Signs and symptoms]] [[Category:Cognitive signs and symptoms]] [[Category:Long COVID signs and symptoms]]
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