{"id":"https://openalex.org/W1976800069","doi":"https://doi.org/10.1207/s15327590ijhc1702_5","title":"A Real-Time Index of Vagal Activity","display_name":"A Real-Time Index of Vagal Activity","publication_year":2004,"publication_date":"2004-06-01","ids":{"openalex":"https://openalex.org/W1976800069","doi":"https://doi.org/10.1207/s15327590ijhc1702_5","mag":"1976800069"},"language":"en","primary_location":{"id":"doi:10.1207/s15327590ijhc1702_5","is_oa":false,"landing_page_url":"https://doi.org/10.1207/s15327590ijhc1702_5","pdf_url":null,"source":{"id":"https://openalex.org/S165559636","display_name":"International Journal of Human-Computer Interaction","issn_l":"1044-7318","issn":["1044-7318","1532-7590"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Human-Computer Interaction","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5009609077","display_name":"Adam Hoover","orcid":"https://orcid.org/0000-0003-2965-6524"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Adam Hoover","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5005368889","display_name":"Eric R. Muth","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Eric Muth","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5009609077"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.7587,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.90072888,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"17","issue":"2","first_page":"197","last_page":"209"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10745","display_name":"Heart Rate Variability and Autonomic Control","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.9872000217437744,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10429","display_name":"EEG and Brain-Computer Interfaces","score":0.9757999777793884,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/workload","display_name":"Workload","score":0.8434253931045532},{"id":"https://openalex.org/keywords/arousal","display_name":"Arousal","score":0.7962545156478882},{"id":"https://openalex.org/keywords/measure","display_name":"Measure (data warehouse)","score":0.714277446269989},{"id":"https://openalex.org/keywords/vagal-tone","display_name":"Vagal tone","score":0.6456633806228638},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6298657655715942},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.47290337085723877},{"id":"https://openalex.org/keywords/simulation","display_name":"Simulation","score":0.4192357659339905},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.3871331214904785},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.2293241024017334},{"id":"https://openalex.org/keywords/heart-rate","display_name":"Heart rate","score":0.20056700706481934},{"id":"https://openalex.org/keywords/neuroscience","display_name":"Neuroscience","score":0.16407859325408936},{"id":"https://openalex.org/keywords/heart-rate-variability","display_name":"Heart rate variability","score":0.15943452715873718},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.14021086692810059},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.13152742385864258},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.12321406602859497}],"concepts":[{"id":"https://openalex.org/C2778476105","wikidata":"https://www.wikidata.org/wiki/Q628539","display_name":"Workload","level":2,"score":0.8434253931045532},{"id":"https://openalex.org/C36951298","wikidata":"https://www.wikidata.org/wiki/Q379784","display_name":"Arousal","level":2,"score":0.7962545156478882},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.714277446269989},{"id":"https://openalex.org/C10928738","wikidata":"https://www.wikidata.org/wiki/Q1195426","display_name":"Vagal tone","level":5,"score":0.6456633806228638},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6298657655715942},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.47290337085723877},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.4192357659339905},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.3871331214904785},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.2293241024017334},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.20056700706481934},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.16407859325408936},{"id":"https://openalex.org/C71635504","wikidata":"https://www.wikidata.org/wiki/Q933954","display_name":"Heart rate variability","level":4,"score":0.15943452715873718},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.14021086692810059},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.13152742385864258},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.12321406602859497},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.0},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1207/s15327590ijhc1702_5","is_oa":false,"landing_page_url":"https://doi.org/10.1207/s15327590ijhc1702_5","pdf_url":null,"source":{"id":"https://openalex.org/S165559636","display_name":"International Journal of Human-Computer Interaction","issn_l":"1044-7318","issn":["1044-7318","1532-7590"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Human-Computer Interaction","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1609307978","https://openalex.org/W1863864373","https://openalex.org/W1974128646","https://openalex.org/W2041180321","https://openalex.org/W2097757520","https://openalex.org/W2142700313","https://openalex.org/W2148063368","https://openalex.org/W2285072859","https://openalex.org/W4213178377","https://openalex.org/W4241830324","https://openalex.org/W7027716524"],"related_works":["https://openalex.org/W2340642073","https://openalex.org/W986318368","https://openalex.org/W2000785801","https://openalex.org/W2384410913","https://openalex.org/W2352878646","https://openalex.org/W2990194547","https://openalex.org/W2004734601","https://openalex.org/W2130149817","https://openalex.org/W1480123525","https://openalex.org/W2155045291"],"abstract_inverted_index":{"A":[0],"computer":[1],"system":[2,35,54,101],"today":[3],"receives":[4],"no":[5],"data":[6,21],"regarding":[7],"the":[8,12,28,34,38,47,53,57,61,96,128,130,135,139],"physiological":[9,143],"state":[10],"of":[11,68,78,108,123],"user,":[13],"but":[14],"there":[15],"are":[16],"many":[17],"cases":[18],"where":[19],"these":[20],"could":[22,36,55,72],"be":[23,73],"useful.":[24],"For":[25],"example,":[26],"as":[27,81],"user":[29,48],"becomes":[30,49],"bored":[31],"or":[32,40,51,59],"lethargic,":[33],"raise":[37],"workload":[39,58],"audiovisual":[41],"feedback":[42,62,71],"to":[43,63],"stimulate":[44],"arousal.":[45,65,109],"As":[46],"tense":[50],"strained,":[52],"lighten":[56],"simplify":[60],"lessen":[64],"This":[66],"type":[67],"physiological-based":[69],"closed-loop":[70],"applied":[74],"in":[75,116],"a":[76,99,104,150],"number":[77],"scenarios,":[79],"such":[80,149],"training,":[82],"stressful":[83],"repetitive":[84],"work":[85],"(e.g.,":[86],"air":[87],"traffic":[88],"control),":[89],"and":[90,133,138],"military":[91],"operations.":[92],"In":[93],"this":[94],"article,":[95],"authors":[97],"describe":[98,127],"computing":[100,136],"that":[102],"produces":[103],"real-time":[105],"cardiac-based":[106],"measure":[107,111,122],"The":[110],"is":[112],"based":[113],"on":[114],"changes":[115],"respiratory":[117],"sinus":[118],"arrhythmia,":[119],"an":[120],"established":[121],"vagal":[124],"activity.":[125],"They":[126],"measure,":[129],"measure's":[131],"potential":[132],"limits,":[134],"system,":[137],"new":[140],"directions":[141],"for":[142],"monitoring":[144],"research":[145],"made":[146],"possible":[147],"by":[148],"system.":[151]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
