{"id":"https://openalex.org/W2036601325","doi":"https://doi.org/10.3109/07420529109063922","title":"Real-Time Monitoring of Slow-Wave Sleep by Electroencephalogram Variance","display_name":"Real-Time Monitoring of Slow-Wave Sleep by Electroencephalogram Variance","publication_year":1991,"publication_date":"1991-01-01","ids":{"openalex":"https://openalex.org/W2036601325","doi":"https://doi.org/10.3109/07420529109063922","mag":"2036601325","pmid":"https://pubmed.ncbi.nlm.nih.gov/1794153"},"language":"en","primary_location":{"id":"doi:10.3109/07420529109063922","doi":"https://doi.org/10.3109/07420529109063922","is_oa":false,"landing_page_url":"https://doi.org/10.3109/07420529109063922","pdf_url":null,"source":{"id":"https://openalex.org/S75142505","display_name":"Chronobiology International","issn_l":"0742-0528","issn":["0742-0528","1525-6073"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chronobiology International","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5045452137","display_name":"Hiroyoshi S\u00e9i","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I922474255","display_name":"Tokushima University","ror":"https://ror.org/044vy1d05","country_code":"JP","type":"education","lineage":["https://openalex.org/I922474255"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroyoshi Sei","raw_affiliation_strings":["Department of Physiology, School of Medicine, University of Tokushima, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physiology, School of Medicine, University of Tokushima, Japan","institution_ids":["https://openalex.org/I922474255"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111570098","display_name":"Hiromasa Seno","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I922474255","display_name":"Tokushima University","ror":"https://ror.org/044vy1d05","country_code":"JP","type":"education","lineage":["https://openalex.org/I922474255"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiromasa Seno","raw_affiliation_strings":["Department of Physiology, School of Medicine, The University of Tokushima, Tokushima, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physiology, School of Medicine, The University of Tokushima, Tokushima, Japan","institution_ids":["https://openalex.org/I922474255"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101643845","display_name":"Yusuke Morita","orcid":"https://orcid.org/0000-0002-4419-3874","observed_orcids":["https://orcid.org/0000-0002-4419-3874"]},"institutions":[{"id":"https://openalex.org/I922474255","display_name":"Tokushima University","ror":"https://ror.org/044vy1d05","country_code":"JP","type":"education","lineage":["https://openalex.org/I922474255"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Morita","raw_affiliation_strings":["Department of Physiology, School of Medicine, The University of Tokushima, Tokushima, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physiology, School of Medicine, The University of Tokushima, Tokushima, Japan","institution_ids":["https://openalex.org/I922474255"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I922474255"],"apc_list":null,"apc_paid":null,"fwci":0.2105,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.45945245,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"8","issue":"3","first_page":"161","last_page":"167"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10985","display_name":"Sleep and Wakefulness Research","score":0.8734999895095825,"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"}},"topics":[{"id":"https://openalex.org/T10985","display_name":"Sleep and Wakefulness Research","score":0.8734999895095825,"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/T10429","display_name":"EEG and Brain-Computer Interfaces","score":0.07680000364780426,"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/T10316","display_name":"Sleep and related disorders","score":0.033399999141693115,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/slow-wave-sleep","display_name":"slow-wave sleep","score":0.996999979019165},{"id":"https://openalex.org/keywords/sleep-staging","display_name":"sleep stage classification","score":0.45399999618530273},{"id":"https://openalex.org/keywords/biological-rhythms","display_name":"biological rhythms","score":0.6850000023841858},{"id":"https://openalex.org/keywords/rats","display_name":"rats","score":0.4819999933242798},{"id":"https://openalex.org/keywords/human","display_name":"human","score":0.5509999990463257}],"concepts":[{"id":"https://openalex.org/C522805319","wikidata":"https://www.wikidata.org/wiki/Q179965","display_name":"Electroencephalography","level":2,"score":0.7731562852859497},{"id":"https://openalex.org/C2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","level":2,"score":0.7379664778709412},{"id":"https://openalex.org/C196083921","wikidata":"https://www.wikidata.org/wiki/Q7915758","display_name":"Variance (accounting)","level":2,"score":0.5504806637763977},{"id":"https://openalex.org/C110539466","wikidata":"https://www.wikidata.org/wiki/Q3964845","display_name":"Slow-wave sleep","level":3,"score":0.4913889467716217},{"id":"https://openalex.org/C548259974","wikidata":"https://www.wikidata.org/wiki/Q569965","display_name":"Audiology","level":1,"score":0.4773697555065155},{"id":"https://openalex.org/C99476002","wikidata":"https://www.wikidata.org/wiki/Q42297","display_name":"Analysis of variance","level":2,"score":0.45352253317832947},{"id":"https://openalex.org/C121446783","wikidata":"https://www.wikidata.org/wiki/Q208353","display_name":"Circadian rhythm","level":2,"score":0.4383033514022827},{"id":"https://openalex.org/C135343436","wikidata":"https://www.wikidata.org/wiki/Q170406","display_name":"Rhythm","level":2,"score":0.4304753541946411},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.3502761721611023},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.285087525844574},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.28163978457450867},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.23551854491233826},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.10296568274497986},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.08488360047340393},{"id":"https://openalex.org/C121955636","wikidata":"https://www.wikidata.org/wiki/Q4116214","display_name":"Accounting","level":1,"score":0.0},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"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":"D000704","descriptor_name":"Analysis of Variance","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000818","descriptor_name":"Animals","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D002648","descriptor_name":"Child","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":true},{"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":"D008838","descriptor_name":"Microcomputers","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011919","descriptor_name":"Rats, Inbred Strains","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":true},{"descriptor_ui":"D012894","descriptor_name":"Sleep Stages","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012984","descriptor_name":"Software","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D051381","descriptor_name":"Rats","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.3109/07420529109063922","doi":"https://doi.org/10.3109/07420529109063922","is_oa":false,"landing_page_url":"https://doi.org/10.3109/07420529109063922","pdf_url":null,"source":{"id":"https://openalex.org/S75142505","display_name":"Chronobiology International","issn_l":"0742-0528","issn":["0742-0528","1525-6073"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chronobiology International","raw_type":"journal-article"},{"id":"pmid:1794153","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/1794153","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,"listed_in":[],"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":"Chronobiology international","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2010778134","https://openalex.org/W2115576097","https://openalex.org/W2163815564","https://openalex.org/W2273634390","https://openalex.org/W2525537354","https://openalex.org/W2978308516","https://openalex.org/W3022302886","https://openalex.org/W4231058111"],"related_works":["https://openalex.org/W2010778134","https://openalex.org/W7218166738","https://openalex.org/W4250235795","https://openalex.org/W7145585352","https://openalex.org/W7064950591","https://openalex.org/W2277790503","https://openalex.org/W7112863026","https://openalex.org/W6947873302","https://openalex.org/W1993204069","https://openalex.org/W2093128928"],"abstract_inverted_index":{"Based":[0],"on":[1],"statistical":[2],"variance":[3,33],"as":[4],"an":[5],"index":[6],"of":[7],"electroencephalogram":[8],"(EEG)":[9],"parameters,":[10],"we":[11],"monitored":[12],"slow-wave":[13],"sleep":[14,47],"in":[15,20],"both":[16],"humans":[17],"and":[18,23],"rats":[19],"real":[21],"time":[22],"on-line":[24],"with":[25],"a":[26,37],"widely":[27],"used":[28],"personal":[29],"computer.":[30],"This":[31],"EEG":[32],"method":[34],"may":[35],"be":[36],"useful":[38],"tool":[39],"to":[40],"carry":[41],"out":[42],"biological":[43],"rhythm":[44],"research,":[45],"including":[46],"studies.":[48]},"counts_by_year":[{"year":2017,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}