{"id":"https://openalex.org/W1974883811","doi":"https://doi.org/10.1518/001872005774860096","title":"An Attempt to Evaluate Mental Workload Using Wavelet Transform of EEG","display_name":"An Attempt to Evaluate Mental Workload Using Wavelet Transform of EEG","publication_year":2005,"publication_date":"2005-09-01","ids":{"openalex":"https://openalex.org/W1974883811","doi":"https://doi.org/10.1518/001872005774860096","mag":"1974883811","pmid":"https://pubmed.ncbi.nlm.nih.gov/16435692"},"language":"en","primary_location":{"id":"doi:10.1518/001872005774860096","is_oa":false,"landing_page_url":"https://doi.org/10.1518/001872005774860096","pdf_url":null,"source":{"id":"https://openalex.org/S83386566","display_name":"Human Factors The Journal of the Human Factors and Ergonomics Society","issn_l":"0018-7208","issn":["0018-7208","1547-8181"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320017","host_organization_name":"SAGE Publishing","host_organization_lineage":["https://openalex.org/P4310320017"],"host_organization_lineage_names":["SAGE Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Human Factors: The Journal of the Human Factors and Ergonomics Society","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"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/A5080724309","display_name":"Atsuo Murata","orcid":"https://orcid.org/0000-0002-8378-604X"},"institutions":[{"id":"https://openalex.org/I57930482","display_name":"Hiroshima City University","ror":"https://ror.org/001et4e78","country_code":"JP","type":"education","lineage":["https://openalex.org/I57930482"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Atsuo Murata","raw_affiliation_strings":["Hiroshima City University, Hiroshima, Japan","Hiroshima City University, Department of Computer and Media Technologies, Asaminami-ku, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hiroshima City University, Hiroshima, Japan","institution_ids":["https://openalex.org/I57930482"]},{"raw_affiliation_string":"Hiroshima City University, Department of Computer and Media Technologies, Asaminami-ku, Japan","institution_ids":["https://openalex.org/I57930482"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5080724309"],"corresponding_institution_ids":["https://openalex.org/I57930482"],"apc_list":null,"apc_paid":null,"fwci":2.2147,"has_fulltext":false,"cited_by_count":103,"citation_normalized_percentile":{"value":0.87627986,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"47","issue":"3","first_page":"498","last_page":"508"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10525","display_name":"Human-Automation Interaction and Safety","score":0.9868000149726868,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10525","display_name":"Human-Automation Interaction and Safety","score":0.9868000149726868,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10429","display_name":"EEG and Brain-Computer Interfaces","score":0.96670001745224,"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"}},{"id":"https://openalex.org/T14512","display_name":"Technology and Human Factors in Education and Health","score":0.9663000106811523,"subfield":{"id":"https://openalex.org/subfields/2739","display_name":"Public Health, Environmental and Occupational Health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/workload","display_name":"Workload","score":0.8656764030456543},{"id":"https://openalex.org/keywords/electroencephalography","display_name":"Electroencephalography","score":0.7148269414901733},{"id":"https://openalex.org/keywords/task","display_name":"Task (project management)","score":0.6914690732955933},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.6094054579734802},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5770221948623657},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.506271481513977},{"id":"https://openalex.org/keywords/cognition","display_name":"Cognition","score":0.470056414604187},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.43761318922042847},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4297041893005371},{"id":"https://openalex.org/keywords/discrete-wavelet-transform","display_name":"Discrete wavelet transform","score":0.41148680448532104},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.4112013876438141},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3481634259223938},{"id":"https://openalex.org/keywords/audiology","display_name":"Audiology","score":0.3257852792739868},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.2927597761154175},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.21941721439361572},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.21111392974853516},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.16811394691467285},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.08374574780464172},{"id":"https://openalex.org/keywords/psychiatry","display_name":"Psychiatry","score":0.07783064246177673}],"concepts":[{"id":"https://openalex.org/C2778476105","wikidata":"https://www.wikidata.org/wiki/Q628539","display_name":"Workload","level":2,"score":0.8656764030456543},{"id":"https://openalex.org/C522805319","wikidata":"https://www.wikidata.org/wiki/Q179965","display_name":"Electroencephalography","level":2,"score":0.7148269414901733},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.6914690732955933},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.6094054579734802},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5770221948623657},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.506271481513977},{"id":"https://openalex.org/C169900460","wikidata":"https://www.wikidata.org/wiki/Q2200417","display_name":"Cognition","level":2,"score":0.470056414604187},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.43761318922042847},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4297041893005371},{"id":"https://openalex.org/C46286280","wikidata":"https://www.wikidata.org/wiki/Q2414958","display_name":"Discrete wavelet transform","level":4,"score":0.41148680448532104},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.4112013876438141},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3481634259223938},{"id":"https://openalex.org/C548259974","wikidata":"https://www.wikidata.org/wiki/Q569965","display_name":"Audiology","level":1,"score":0.3257852792739868},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.2927597761154175},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.21941721439361572},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.21111392974853516},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.16811394691467285},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.08374574780464172},{"id":"https://openalex.org/C118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","level":1,"score":0.07783064246177673},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000328","descriptor_name":"Adult","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000704","descriptor_name":"Analysis of Variance","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000704","descriptor_name":"Analysis of Variance","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000704","descriptor_name":"Analysis of Variance","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004569","descriptor_name":"Electroencephalography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004569","descriptor_name":"Electroencephalography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004569","descriptor_name":"Electroencephalography","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008297","descriptor_name":"Male","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D008606","descriptor_name":"Mental Processes","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D008606","descriptor_name":"Mental Processes","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D008606","descriptor_name":"Mental Processes","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D011930","descriptor_name":"Reaction Time","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011930","descriptor_name":"Reaction Time","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011930","descriptor_name":"Reaction Time","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013647","descriptor_name":"Task Performance and Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013647","descriptor_name":"Task Performance and Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013647","descriptor_name":"Task Performance and Analysis","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013997","descriptor_name":"Time Factors","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016526","descriptor_name":"Workload","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016526","descriptor_name":"Workload","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D016526","descriptor_name":"Workload","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1518/001872005774860096","is_oa":false,"landing_page_url":"https://doi.org/10.1518/001872005774860096","pdf_url":null,"source":{"id":"https://openalex.org/S83386566","display_name":"Human Factors The Journal of the Human Factors and Ergonomics Society","issn_l":"0018-7208","issn":["0018-7208","1547-8181"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320017","host_organization_name":"SAGE Publishing","host_organization_lineage":["https://openalex.org/P4310320017"],"host_organization_lineage_names":["SAGE Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Human Factors: The Journal of the Human Factors and Ergonomics Society","raw_type":"journal-article"},{"id":"pmid:16435692","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/16435692","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Human factors","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W72216355","https://openalex.org/W200841156","https://openalex.org/W296592821","https://openalex.org/W403323297","https://openalex.org/W618267295","https://openalex.org/W1592598395","https://openalex.org/W1729578042","https://openalex.org/W1974299946","https://openalex.org/W1988011784","https://openalex.org/W1996021349","https://openalex.org/W1998977696","https://openalex.org/W2023668640","https://openalex.org/W2032084308","https://openalex.org/W2034478899","https://openalex.org/W2046391510","https://openalex.org/W2058132619","https://openalex.org/W2062415273","https://openalex.org/W2069043463","https://openalex.org/W2074583441","https://openalex.org/W2076992006","https://openalex.org/W2080329809","https://openalex.org/W2086428887","https://openalex.org/W2087666960","https://openalex.org/W2098914003","https://openalex.org/W2112400936","https://openalex.org/W2146119542","https://openalex.org/W2157080893","https://openalex.org/W2157289187","https://openalex.org/W2161106708","https://openalex.org/W2409142998","https://openalex.org/W3181723294","https://openalex.org/W4300821173"],"related_works":["https://openalex.org/W183670115","https://openalex.org/W1501179639","https://openalex.org/W3199035354","https://openalex.org/W2085792030","https://openalex.org/W1807354010","https://openalex.org/W3143644526","https://openalex.org/W598225674","https://openalex.org/W2734230146","https://openalex.org/W1588899229","https://openalex.org/W2077021924"],"abstract_inverted_index":{"An":[0],"attempt":[1],"was":[2],"made":[3],"to":[4,75,89,126,143],"evaluate":[5],"mental":[6,148,188],"workload":[7,149],"using":[8,86],"a":[9,18,172],"wavelet":[10,87],"transform":[11,88],"of":[12,25,48,147,168,187],"electroencephalographic":[13],"(EEG)":[14],"signals.":[15],"Participants":[16],"performed":[17],"continuous":[19],"matching":[20],"task":[21,26,32,50,58,79,123,155],"at":[22,96,130],"three":[23,113,153],"levels":[24],"difficulty.":[27,80],"EEG":[28,82],"signals":[29,83],"during":[30],"the":[31,46,49,57,66,70,104,107,112,119,128,132,185],"were":[33,84,116,141],"recorded":[34],"continuously":[35],"from":[36,118],"Fz,":[37],"Cz,":[38],"and":[39,99,103,150,159,178],"Pz.":[40],"The":[41,52,81,93],"reaction":[42],"time":[43,105,129],"increased":[44,78],"as":[45,56],"difficulty":[47,124],"increased.":[51],"percentage":[53],"correct":[54],"decreased":[55],"became":[59],"more":[60],"difficult.":[61],"In":[62],"accordance":[63],"with":[64,77,161,181],"this,":[65],"rating":[67],"score":[68],"on":[69],"NASA-Task":[71],"Load":[72],"Index":[73],"tended":[74],"increase":[76],"analyzed":[85],"investigate":[90],"time-frequency":[91],"characteristics.":[92],"total":[94],"power":[95,109],"theta,":[97],"alpha,":[98],"beta":[100],"frequency":[101,114],"bands":[102,115],"that":[106,174],"maximum":[108],"appeared":[110],"for":[111,184],"extracted":[117],"scalogram.":[120],"Increasing":[121],"cognitive":[122,154],"seems":[125],"delay":[127],"which":[131],"central":[133],"nervous":[134],"system":[135],"works":[136],"most":[137],"actively.":[138],"These":[139],"measures":[140],"found":[142],"be":[144],"sensitive":[145],"indicators":[146],"could":[151],"differentiate":[152],"loads":[156],"(low,":[157],"moderate,":[158],"high)":[160],"high":[162],"precision.":[163],"Actual":[164],"or":[165],"potential":[166],"applications":[167],"this":[169],"research":[170],"include":[171],"method":[173],"is":[175],"relatively":[176],"quick":[177],"accurate,":[179],"compared":[180],"traditional":[182],"methods,":[183],"evaluation":[186],"workload.":[189]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":7},{"year":2021,"cited_by_count":14},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":8},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":7},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":6}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}