Reduced Cardiac Vagal Modulation Impacts on Cognitive Performance in Chronic Fatigue Syndrome
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{"title"=>"Reduced Cardiac Vagal Modulation Impacts on Cognitive Performance in Chronic Fatigue Syndrome", "type"=>"journal", "authors"=>[{"first_name"=>"Alison", "last_name"=>"Beaumont", "scopus_author_id"=>"55484457500"}, {"first_name"=>"Alexander R.", "last_name"=>"Burton", "scopus_author_id"=>"24333984000"}, {"first_name"=>"Jim", "last_name"=>"Lemon", "scopus_author_id"=>"7007001928"}, {"first_name"=>"Barbara K.", "last_name"=>"Bennett", "scopus_author_id"=>"55613997000"}, {"first_name"=>"Andrew", "last_name"=>"Lloyd", "scopus_author_id"=>"56962782100"}, {"first_name"=>"Uté", "last_name"=>"Vollmer-Conna", "scopus_author_id"=>"55400364600"}], "year"=>2012, "source"=>"PLoS ONE", "identifiers"=>{"scopus"=>"2-s2.0-84869128218", "sgr"=>"84869128218", "issn"=>"19326203", "doi"=>"10.1371/journal.pone.0049518", "pmid"=>"23166694", "isbn"=>"1932-6203", "pui"=>"366053752"}, "id"=>"fd8ef519-8e7c-3038-99d5-1befb473376d", "abstract"=>"BACKGROUND: Cognitive difficulties and autonomic dysfunction have been reported separately in patients with chronic fatigue syndrome (CFS). A role for heart rate variability (HRV) in cognitive flexibility has been demonstrated in healthy individuals, but this relationship has not as yet been examined in CFS. The objective of this study was to examine the relationship between HRV and cognitive performance in patients with CFS.\\n\\nMETHODS: Participants were 30 patients with CFS and 40 healthy controls; the groups were matched for age, sex, education, body mass index, and hours of moderate exercise/week. Questionnaires were used to obtain relevant medical and demographic information, and assess current symptoms and functional impairment. Electrocardiograms, perceived fatigue/effort and performance data were recorded during cognitive tasks. Between-group differences in autonomic reactivity and associations with cognitive performance were analysed.\\n\\nRESULTS: Patients with CFS showed no deficits in performance accuracy, but were significantly slower than healthy controls. CFS was further characterized by low and unresponsive HRV; greater heart rate (HR) reactivity and prolonged HR-recovery after cognitive challenge. Fatigue levels, perceived effort and distress did not affect cognitive performance. HRV was consistently associated with performance indices and significantly predicted variance in cognitive outcomes.\\n\\nCONCLUSIONS: These findings reveal for the first time an association between reduced cardiac vagal tone and cognitive impairment in CFS and confirm previous reports of diminished vagal activity.", "link"=>"http://www.mendeley.com/research/reduced-cardiac-vagal-modulation-impacts-cognitive-performance-chronic-fatigue-syndrome-3", "reader_count"=>66, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Researcher"=>8, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>9, "Student > Postgraduate"=>5, "Student > Master"=>12, "Other"=>5, "Student > Bachelor"=>4, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>15, "Unspecified"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Researcher"=>8, "Student > Doctoral Student"=>4, "Student > Ph. D. Student"=>9, "Student > Postgraduate"=>5, "Student > Master"=>12, "Other"=>5, "Student > Bachelor"=>4, "Lecturer"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>15, "Unspecified"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>3, "Biochemistry, Genetics and Molecular Biology"=>1, "Nursing and Health Professions"=>2, "Medicine and Dentistry"=>12, "Agricultural and Biological Sciences"=>6, "Neuroscience"=>2, "Sports and Recreations"=>7, "Pharmacology, Toxicology and Pharmaceutical Science"=>1, "Psychology"=>26, "Chemistry"=>1, "Social Sciences"=>3, "Computer Science"=>2}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>12}, "Neuroscience"=>{"Neuroscience"=>2}, "Chemistry"=>{"Chemistry"=>1}, "Social Sciences"=>{"Social Sciences"=>3}, "Sports and Recreations"=>{"Sports and Recreations"=>7}, "Psychology"=>{"Psychology"=>26}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>6}, "Computer Science"=>{"Computer Science"=>2}, "Nursing and Health Professions"=>{"Nursing and Health Professions"=>2}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>3}, "Pharmacology, Toxicology and Pharmaceutical Science"=>{"Pharmacology, Toxicology and Pharmaceutical Science"=>1}}, "reader_count_by_country"=>{"Sweden"=>1, "Norway"=>2, "Poland"=>1, "United Kingdom"=>1}, "group_count"=>7}

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/544195"], "description"=>"<p>The correlations coefficients (<i>r</i>) are from Pearson correlations; rMSSD  =  root mean square of successive differences of R-R intervals; RT  =  reaction time.</p>", "links"=>[], "tags"=>["baseline", "rmssd"], "article_id"=>214689, "categories"=>["Physiology", "Neuroscience", "Mental Health"], "users"=>["Alison Beaumont", "Alexander R. Burton", "Jim Lemon", "Barbara K. Bennett", "Andrew Lloyd", "Uté Vollmer-Conna"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0049518.t002", "stats"=>{"downloads"=>6, "page_views"=>12, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Correlations_between_baseline_rMSSD_ms_values_and_cognitive_performance_outcomes_/214689", "title"=>"Correlations between baseline rMSSD (ms) values and cognitive performance outcomes.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 20:25:04"}
  • {"files"=>["https://ndownloader.figshare.com/files/544229"], "description"=>"<p>Values are group means and (standard deviations). CFS  =  chronic fatigue syndrome; SOMA  =  somatic subscale of the SPHERE (somatic and psychological health report); K10 =  Kessler 10; BDQ  =  brief disability questionnaire; PSQI  =  Pittsburgh Sleep Quality Index; McGill  =  Short form McGill Pain Questionnaire.</p>", "links"=>[], "tags"=>["characteristics", "patients", "cfs"], "article_id"=>214723, "categories"=>["Physiology", "Neuroscience", "Mental Health"], "users"=>["Alison Beaumont", "Alexander R. Burton", "Jim Lemon", "Barbara K. Bennett", "Andrew Lloyd", "Uté Vollmer-Conna"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0049518.t001", "stats"=>{"downloads"=>4, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Clinical_characteristics_patients_with_CFS_and_of_healthy_participants_/214723", "title"=>"Clinical characteristics patients with CFS and of healthy participants.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-02-19 20:25:15"}
  • {"files"=>["https://ndownloader.figshare.com/files/543965"], "description"=>"<p>Error bars represent the standard error of the mean (SEM). HRV  =  heat rate variability; rMSSD  =  root mean square of successive differences of R-R intervals; CFS  =  chronic fatigue syndrome.</p>", "links"=>[], "tags"=>["hrv", "resting", "baseline", "patients", "cfs"], "article_id"=>214456, "categories"=>["Physiology", "Neuroscience", "Mental Health"], "users"=>["Alison Beaumont", "Alexander R. Burton", "Jim Lemon", "Barbara K. Bennett", "Andrew Lloyd", "Uté Vollmer-Conna"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0049518.g003", "stats"=>{"downloads"=>3, "page_views"=>41, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_The_average_change_in_HRV_as_rMSSD_from_resting_baseline_in_response_to_cognitive_task_performance_in_patients_with_CFS_and_healthy_control_participants_/214456", "title"=>"The average change in HRV (as rMSSD) from resting baseline in response to cognitive task performance in patients with CFS and healthy control participants.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 20:23:44"}
  • {"files"=>["https://ndownloader.figshare.com/files/543855"], "description"=>"<p>HR  =  heart rate.</p>", "links"=>[], "tags"=>["had", "returned", "baseline", "hr"], "article_id"=>214346, "categories"=>["Physiology", "Neuroscience", "Mental Health"], "users"=>["Alison Beaumont", "Alexander R. Burton", "Jim Lemon", "Barbara K. Bennett", "Andrew Lloyd", "Uté Vollmer-Conna"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0049518.g002", "stats"=>{"downloads"=>4, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Proportion_of_participants_who_had_returned_to_baseline_HR_values_during_the_two_minute_recovery_period_/214346", "title"=>"Proportion of participants who had returned to baseline HR values during the two minute recovery period.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 20:23:07"}
  • {"files"=>["https://ndownloader.figshare.com/files/544068"], "description"=>"<p>PFC  =  prefrontal cortex; HRV  =  heat rate variability; CFS  =  chronic fatigue syndrome.</p>", "links"=>[], "tags"=>["hypothetical", "altered", "neurovisceral", "documented", "impairments", "autonomic", "activation", "behavioural", "self-regulation"], "article_id"=>214554, "categories"=>["Physiology", "Neuroscience", "Mental Health"], "users"=>["Alison Beaumont", "Alexander R. Burton", "Jim Lemon", "Barbara K. Bennett", "Andrew Lloyd", "Uté Vollmer-Conna"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0049518.g004", "stats"=>{"downloads"=>5, "page_views"=>107, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_A_hypothetical_model_of_altered_neurovisceral_communication_underlying_the_documented_impairments_in_autonomic_activation_and_behavioural_self_regulation_in_CFS_/214554", "title"=>"A hypothetical model of altered neurovisceral communication underlying the documented impairments in autonomic activation and behavioural self-regulation in CFS.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 20:24:16"}
  • {"files"=>["https://ndownloader.figshare.com/files/543790"], "description"=>"<p>Error bars represent the standard error of the mean (SEM). HR  =  heart rate; bpm  =  beats per minute; CFS  =  chronic fatigue syndrome.</p>", "links"=>[], "tags"=>["hr", "resting", "baseline", "patients", "cfs"], "article_id"=>214271, "categories"=>["Physiology", "Neuroscience", "Mental Health"], "users"=>["Alison Beaumont", "Alexander R. Burton", "Jim Lemon", "Barbara K. Bennett", "Andrew Lloyd", "Uté Vollmer-Conna"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0049518.g001", "stats"=>{"downloads"=>1, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_The_average_change_in_HR_as_bpm_from_resting_baseline_in_response_to_cognitive_task_performance_in_patients_with_CFS_and_healthy_control_participants_/214271", "title"=>"The average change in HR (as bpm) from resting baseline in response to cognitive task performance in patients with CFS and healthy control participants.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-02-19 20:22:40"}

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  • {"unique-ip"=>"8", "full-text"=>"9", "pdf"=>"2", "scanned-summary"=>"0", "scanned-page-browse"=>"0", "figure"=>"0", "supp-data"=>"0", "cited-by"=>"0", "year"=>"2018", "month"=>"8"}
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Relative Metric

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