{"id":"https://openalex.org/W2081708137","doi":"https://doi.org/10.1007/s004220050571","title":"A model-based interpretation of the biphasic daily pattern of sleepiness","display_name":"A model-based interpretation of the biphasic daily pattern of sleepiness","publication_year":1999,"publication_date":"1999-11-05","ids":{"openalex":"https://openalex.org/W2081708137","doi":"https://doi.org/10.1007/s004220050571","mag":"2081708137","pmid":"https://pubmed.ncbi.nlm.nih.gov/10592016"},"language":"en","primary_location":{"id":"doi:10.1007/s004220050571","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s004220050571","pdf_url":null,"source":{"id":"https://openalex.org/S87357125","display_name":"Biological Cybernetics","issn_l":"0340-1200","issn":["0340-1200","1432-0770"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Biological Cybernetics","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/A5067256991","display_name":"Mitsuyuki Nakao","orcid":"https://orcid.org/0000-0003-3758-2879"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Mitsuyuki Nakao","raw_affiliation_strings":["Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan. nakao@ecei.tohoku.ac.jp","Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, JP"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan. nakao@ecei.tohoku.ac.jp","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, JP","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103842706","display_name":"Hikaru Nishiyama","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hikaru Nishiyama","raw_affiliation_strings":["Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, , , , , , JP","Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, JP"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, , , , , , JP","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, JP","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113902795","display_name":"Dennis McGinty","orcid":null},"institutions":[{"id":"https://openalex.org/I4210145304","display_name":"VA Sepulveda Ambulatory Care Center","ror":"https://ror.org/04zdeh149","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210138663","https://openalex.org/I4210145304","https://openalex.org/I4210156876"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Dennis McGinty","raw_affiliation_strings":["Sepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , , , , , US","\u200aSepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , US"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , , , , , US","institution_ids":["https://openalex.org/I4210145304"]},{"raw_affiliation_string":"\u200aSepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , US","institution_ids":["https://openalex.org/I4210145304"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060383124","display_name":"Ronald Szymusiak","orcid":"https://orcid.org/0000-0001-7193-1943"},"institutions":[{"id":"https://openalex.org/I4210145304","display_name":"VA Sepulveda Ambulatory Care Center","ror":"https://ror.org/04zdeh149","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210138663","https://openalex.org/I4210145304","https://openalex.org/I4210156876"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ronald Szymusiak","raw_affiliation_strings":["Sepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , , , , , US","\u200aSepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , US"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Sepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , , , , , US","institution_ids":["https://openalex.org/I4210145304"]},{"raw_affiliation_string":"\u200aSepulveda VA Medical Center and University California, 16111 Plummer St., Sepulveda, Los Angeles, CA 91343, USA, , US","institution_ids":["https://openalex.org/I4210145304"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112080906","display_name":"Mitsuaki Yamamoto","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mitsuaki Yamamoto","raw_affiliation_strings":["Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, , , , , , JP","Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, JP"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, , , , , , JP","institution_ids":["https://openalex.org/I201537933"]},{"raw_affiliation_string":"Neurophysiology and Bioinformatics Laboratory Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan, JP","institution_ids":["https://openalex.org/I201537933"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5067256991"],"corresponding_institution_ids":["https://openalex.org/I201537933"],"apc_list":{"value":2790,"currency":"EUR","value_usd":3590},"apc_paid":null,"fwci":0.5007,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.6371763,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"81","issue":"5-6","first_page":"403","last_page":"414"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10985","display_name":"Sleep and Wakefulness Research","score":0.9994000196456909,"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":0.9994000196456909,"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/T10342","display_name":"Circadian rhythm and melatonin","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2807","display_name":"Endocrine and Autonomic Systems"},"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/T11373","display_name":"Sleep and Work-Related Fatigue","score":0.9922999739646912,"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/harmonic","display_name":"Harmonic","score":0.5942847728729248},{"id":"https://openalex.org/keywords/masking","display_name":"Masking (illustration)","score":0.540137529373169},{"id":"https://openalex.org/keywords/harmonics","display_name":"Harmonics","score":0.47084710001945496},{"id":"https://openalex.org/keywords/circadian-rhythm","display_name":"Circadian rhythm","score":0.43999314308166504},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.42674100399017334},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.40572234988212585},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.39075028896331787},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3238541781902313},{"id":"https://openalex.org/keywords/neuroscience","display_name":"Neuroscience","score":0.2140255868434906},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.1735548973083496},{"id":"https://openalex.org/keywords/quantum-mechanics","display_name":"Quantum mechanics","score":0.0679652988910675}],"concepts":[{"id":"https://openalex.org/C127934551","wikidata":"https://www.wikidata.org/wiki/Q1148098","display_name":"Harmonic","level":2,"score":0.5942847728729248},{"id":"https://openalex.org/C2777402240","wikidata":"https://www.wikidata.org/wiki/Q6783436","display_name":"Masking (illustration)","level":2,"score":0.540137529373169},{"id":"https://openalex.org/C188414643","wikidata":"https://www.wikidata.org/wiki/Q3001183","display_name":"Harmonics","level":3,"score":0.47084710001945496},{"id":"https://openalex.org/C121446783","wikidata":"https://www.wikidata.org/wiki/Q208353","display_name":"Circadian rhythm","level":2,"score":0.43999314308166504},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.42674100399017334},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.40572234988212585},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.39075028896331787},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3238541781902313},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.2140255868434906},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.1735548973083496},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0679652988910675},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0}],"mesh":[{"descriptor_ui":"D001833","descriptor_name":"Body Temperature Regulation","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D001833","descriptor_name":"Body Temperature Regulation","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D001833","descriptor_name":"Body Temperature Regulation","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D002940","descriptor_name":"Circadian Rhythm","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D002940","descriptor_name":"Circadian Rhythm","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D002940","descriptor_name":"Circadian Rhythm","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D003491","descriptor_name":"Cybernetics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D003491","descriptor_name":"Cybernetics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D003491","descriptor_name":"Cybernetics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006706","descriptor_name":"Homeostasis","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D006706","descriptor_name":"Homeostasis","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D006706","descriptor_name":"Homeostasis","qualifier_ui":"Q000502","qualifier_name":"physiology","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":"D008954","descriptor_name":"Models, Biological","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D008954","descriptor_name":"Models, Biological","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D008954","descriptor_name":"Models, Biological","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D012890","descriptor_name":"Sleep","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D012894","descriptor_name":"Sleep Stages","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D012894","descriptor_name":"Sleep Stages","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D012894","descriptor_name":"Sleep Stages","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D014851","descriptor_name":"Wakefulness","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D014851","descriptor_name":"Wakefulness","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false},{"descriptor_ui":"D014851","descriptor_name":"Wakefulness","qualifier_ui":"Q000502","qualifier_name":"physiology","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1007/s004220050571","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s004220050571","pdf_url":null,"source":{"id":"https://openalex.org/S87357125","display_name":"Biological Cybernetics","issn_l":"0340-1200","issn":["0340-1200","1432-0770"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Biological Cybernetics","raw_type":"journal-article"},{"id":"pmid:10592016","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/10592016","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":"Biological cybernetics","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Climate action","id":"https://metadata.un.org/sdg/13","score":0.5099999904632568}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1537142000","https://openalex.org/W1612736460","https://openalex.org/W1829345602","https://openalex.org/W1966211676","https://openalex.org/W1977479946","https://openalex.org/W1979922932","https://openalex.org/W1982384602","https://openalex.org/W2001093185","https://openalex.org/W2003199163","https://openalex.org/W2005468778","https://openalex.org/W2024353739","https://openalex.org/W2035692597","https://openalex.org/W2052395141","https://openalex.org/W2069069213","https://openalex.org/W2071173608","https://openalex.org/W2094712842","https://openalex.org/W2154812230","https://openalex.org/W2498282517"],"related_works":["https://openalex.org/W2345681405","https://openalex.org/W2794336362","https://openalex.org/W2078402172","https://openalex.org/W1995708042","https://openalex.org/W94697941","https://openalex.org/W1964647422","https://openalex.org/W2072627665","https://openalex.org/W2042333571","https://openalex.org/W2896609196","https://openalex.org/W2000322610"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-05-03T08:25:01.440150","created_date":"2025-10-10T00:00:00"}
