Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1969231641', 'doi': 'https://doi.org/10.1126/science.1169626', 'title': 'The Human K-Complex Represents an Isolated Cortical Down-State', 'display_name': 'The Human K-Complex Represents an Isolated Cortical Down-State', 'publication_year': 2009, 'publication_date': '2009-05-21', 'ids': {'openalex': 'https://openalex.org/W1969231641', 'doi': 'https://doi.org/10.1126/science.1169626', 'mag': '1969231641', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/19461004', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/3715654'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1126/science.1169626', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S3880285', 'display_name': 'Science', 'issn_l': '0036-8075', 'issn': ['0036-8075', '1095-9203'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315823', 'host_organization_name': 'American Association for the Advancement of Science', 'host_organization_lineage': ['https://openalex.org/P4310315823'], 'host_organization_lineage_names': ['American Association for the Advancement of Science'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'green', 'oa_url': 'https://europepmc.org/articles/pmc3715654?pdf=render', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5031778533', 'display_name': 'Sydney S. Cash', 'orcid': 'https://orcid.org/0000-0002-4557-6391'}, 'institutions': [{'id': 'https://openalex.org/I136199984', 'display_name': 'Harvard University', 'ror': 'https://ror.org/03vek6s52', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I136199984']}, {'id': 'https://openalex.org/I4210087915', 'display_name': 'Massachusetts General Hospital', 'ror': 'https://ror.org/002pd6e78', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210087915', 'https://openalex.org/I48633490']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Sydney S. Cash', 'raw_affiliation_strings': ['Department of Neurology, Epilepsy Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.'], 'affiliations': [{'raw_affiliation_string': 'Department of Neurology, Epilepsy Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.', 'institution_ids': ['https://openalex.org/I136199984', 'https://openalex.org/I4210087915']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5110080922', 'display_name': 'Eric Halgren', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I36258959', 'display_name': 'University of California, San Diego', 'ror': 'https://ror.org/0168r3w48', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I36258959']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Eric Halgren', 'raw_affiliation_strings': ['Departments of Radiology, Neurosciences, and Psychiatry, University of California at San Diego, San Diego, CA 92093, USA.'], 'affiliations': [{'raw_affiliation_string': 'Departments of Radiology, Neurosciences, and Psychiatry, University of California at San Diego, San Diego, CA 92093, USA.', 'institution_ids': ['https://openalex.org/I36258959']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5003949897', 'display_name': 'Nima Dehghani', 'orcid': 'https://orcid.org/0000-0003-2032-8903'}, 'institutions': [{'id': 'https://openalex.org/I36258959', 'display_name': 'University of California, San Diego', 'ror': 'https://ror.org/0168r3w48', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I36258959']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Nima Dehghani', 'raw_affiliation_strings': ['Departments of Radiology, Neurosciences, and Psychiatry, University of California at San Diego, San Diego, CA 92093, USA.'], 'affiliations': [{'raw_affiliation_string': 'Departments of Radiology, Neurosciences, and Psychiatry, University of California at San Diego, San Diego, CA 92093, USA.', 'institution_ids': ['https://openalex.org/I36258959']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5003722970', 'display_name': 'Andrea O. Rossetti', 'orcid': 'https://orcid.org/0000-0002-7878-172X'}, 'institutions': [{'id': 'https://openalex.org/I1283280774', 'display_name': "Brigham and Women's Hospital", 'ror': 'https://ror.org/04b6nzv94', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1283280774', 'https://openalex.org/I48633490']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Andrea O. Rossetti', 'raw_affiliation_strings': ["Brigham and Women's Hospital, Boston, MA 02115, USA."], 'affiliations': [{'raw_affiliation_string': "Brigham and Women's Hospital, Boston, MA 02115, USA.", 'institution_ids': ['https://openalex.org/I1283280774']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5013861512', 'display_name': 'Thomas Thesen', 'orcid': 'https://orcid.org/0000-0002-3793-438X'}, 'institutions': [{'id': 'https://openalex.org/I57206974', 'display_name': 'New York University', 'ror': 'https://ror.org/0190ak572', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I57206974']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Thomas Thesen', 'raw_affiliation_strings': ['Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA'], 'affiliations': [{'raw_affiliation_string': 'Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA', 'institution_ids': ['https://openalex.org/I57206974']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5078606194', 'display_name': 'Chunmao Wang', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I57206974', 'display_name': 'New York University', 'ror': 'https://ror.org/0190ak572', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I57206974']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'ChunMao Wang', 'raw_affiliation_strings': ['Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA'], 'affiliations': [{'raw_affiliation_string': 'Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA', 'institution_ids': ['https://openalex.org/I57206974']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5001041177', 'display_name': 'Orrin Devinsky', 'orcid': 'https://orcid.org/0000-0003-0044-4632'}, 'institutions': [{'id': 'https://openalex.org/I57206974', 'display_name': 'New York University', 'ror': 'https://ror.org/0190ak572', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I57206974']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Orrin Devinsky', 'raw_affiliation_strings': ['Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA'], 'affiliations': [{'raw_affiliation_string': 'Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA', 'institution_ids': ['https://openalex.org/I57206974']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5090971268', 'display_name': 'Ruben Kuzniecky', 'orcid': 'https://orcid.org/0000-0002-3170-150X'}, 'institutions': [{'id': 'https://openalex.org/I57206974', 'display_name': 'New York University', 'ror': 'https://ror.org/0190ak572', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I57206974']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Ruben Kuzniecky', 'raw_affiliation_strings': ['Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA'], 'affiliations': [{'raw_affiliation_string': 'Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA', 'institution_ids': ['https://openalex.org/I57206974']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5050227206', 'display_name': 'Werner Doyle', 'orcid': 'https://orcid.org/0000-0001-7138-9701'}, 'institutions': [{'id': 'https://openalex.org/I57206974', 'display_name': 'New York University', 'ror': 'https://ror.org/0190ak572', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I57206974']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Werner Doyle', 'raw_affiliation_strings': ['Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA'], 'affiliations': [{'raw_affiliation_string': 'Comprehensive Epilepsy Center, New York University School of Medicine, New York, NY, 10016, USA', 'institution_ids': ['https://openalex.org/I57206974']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5109221140', 'display_name': 'Joseph R. Madsen', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I1288882113', 'display_name': "Boston Children's Hospital", 'ror': 'https://ror.org/00dvg7y05', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1288882113']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Joseph R. Madsen', 'raw_affiliation_strings': ["The Children's Hospital, Boston, MA 02115, USA."], 'affiliations': [{'raw_affiliation_string': "The Children's Hospital, Boston, MA 02115, USA.", 'institution_ids': ['https://openalex.org/I1288882113']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5112015792', 'display_name': 'Edward B Bromfield', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I1283280774', 'display_name': "Brigham and Women's Hospital", 'ror': 'https://ror.org/04b6nzv94', 'country_code': 'US', 'type': 'healthcare', 'lineage': ['https://openalex.org/I1283280774', 'https://openalex.org/I48633490']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Edward Bromfield', 'raw_affiliation_strings': ["Brigham and Women's Hospital, Boston, MA 02115, USA."], 'affiliations': [{'raw_affiliation_string': "Brigham and Women's Hospital, Boston, MA 02115, USA.", 'institution_ids': ['https://openalex.org/I1283280774']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5011145878', 'display_name': 'Lóránd Erőss', 'orcid': 'https://orcid.org/0000-0002-5796-5546'}, 'institutions': [], 'countries': ['HU'], 'is_corresponding': False, 'raw_author_name': 'Loránd Erőss', 'raw_affiliation_strings': ['National Institute of Neurosurgery, H-1145 Budapest, Hungary.'], 'affiliations': [{'raw_affiliation_string': 'National Institute of Neurosurgery, H-1145 Budapest, Hungary.', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5001231385', 'display_name': 'Péter Halász', 'orcid': 'https://orcid.org/0000-0001-6151-728X'}, 'institutions': [{'id': 'https://openalex.org/I31882830', 'display_name': 'Pázmány Péter Catholic University', 'ror': 'https://ror.org/05v9kya57', 'country_code': 'HU', 'type': 'education', 'lineage': ['https://openalex.org/I31882830']}], 'countries': ['HU'], 'is_corresponding': False, 'raw_author_name': 'Péter Halász', 'raw_affiliation_strings': ['National Institute of Psychiatry and Neurology, Epilepsy Center, H-1145 Budapest, Hungary.', 'Péter Pázmány Catholic University, Department of Information Technology, H-1083 Budapest, Hungary.'], 'affiliations': [{'raw_affiliation_string': 'Péter Pázmány Catholic University, Department of Information Technology, H-1083 Budapest, Hungary.', 'institution_ids': ['https://openalex.org/I31882830']}, {'raw_affiliation_string': 'National Institute of Psychiatry and Neurology, Epilepsy Center, H-1145 Budapest, Hungary.', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5108196049', 'display_name': 'George Karmos', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I7597260', 'display_name': 'Hungarian Academy of Sciences', 'ror': 'https://ror.org/02ks8qq67', 'country_code': 'HU', 'type': 'government', 'lineage': ['https://openalex.org/I7597260']}, {'id': 'https://openalex.org/I31882830', 'display_name': 'Pázmány Péter Catholic University', 'ror': 'https://ror.org/05v9kya57', 'country_code': 'HU', 'type': 'education', 'lineage': ['https://openalex.org/I31882830']}], 'countries': ['HU'], 'is_corresponding': False, 'raw_author_name': 'George Karmos', 'raw_affiliation_strings': ['Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.', 'Péter Pázmány Catholic University, Department of Information Technology, H-1083 Budapest, Hungary.'], 'affiliations': [{'raw_affiliation_string': 'Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.', 'institution_ids': ['https://openalex.org/I7597260']}, {'raw_affiliation_string': 'Péter Pázmány Catholic University, Department of Information Technology, H-1083 Budapest, Hungary.', 'institution_ids': ['https://openalex.org/I31882830']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5025729607', 'display_name': 'Richárd Csercsa', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I7597260', 'display_name': 'Hungarian Academy of Sciences', 'ror': 'https://ror.org/02ks8qq67', 'country_code': 'HU', 'type': 'government', 'lineage': ['https://openalex.org/I7597260']}], 'countries': ['HU'], 'is_corresponding': False, 'raw_author_name': 'Richárd Csercsa', 'raw_affiliation_strings': ['Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.'], 'affiliations': [{'raw_affiliation_string': 'Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.', 'institution_ids': ['https://openalex.org/I7597260']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5014726387', 'display_name': 'Lúcia Wittner', 'orcid': 'https://orcid.org/0000-0001-6800-0953'}, 'institutions': [{'id': 'https://openalex.org/I7597260', 'display_name': 'Hungarian Academy of Sciences', 'ror': 'https://ror.org/02ks8qq67', 'country_code': 'HU', 'type': 'government', 'lineage': ['https://openalex.org/I7597260']}], 'countries': ['HU'], 'is_corresponding': False, 'raw_author_name': 'Lucia Wittner', 'raw_affiliation_strings': ['Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.'], 'affiliations': [{'raw_affiliation_string': 'Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.', 'institution_ids': ['https://openalex.org/I7597260', 'https://openalex.org/I7597260']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5072499791', 'display_name': 'István Ulbert', 'orcid': 'https://orcid.org/0000-0001-9941-9159'}, 'institutions': [{'id': 'https://openalex.org/I7597260', 'display_name': 'Hungarian Academy of Sciences', 'ror': 'https://ror.org/02ks8qq67', 'country_code': 'HU', 'type': 'government', 'lineage': ['https://openalex.org/I7597260']}, {'id': 'https://openalex.org/I31882830', 'display_name': 'Pázmány Péter Catholic University', 'ror': 'https://ror.org/05v9kya57', 'country_code': 'HU', 'type': 'education', 'lineage': ['https://openalex.org/I31882830']}], 'countries': ['HU'], 'is_corresponding': False, 'raw_author_name': 'István Ulbert', 'raw_affiliation_strings': ['Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.', 'Péter Pázmány Catholic University, Department of Information Technology, H-1083 Budapest, Hungary.'], 'affiliations': [{'raw_affiliation_string': 'Institute for Psychology, Hungarian Academy of Sciences, H-1394 Budapest, Hungary.', 'institution_ids': ['https://openalex.org/I7597260', 'https://openalex.org/I7597260']}, {'raw_affiliation_string': 'Péter Pázmány Catholic University, Department of Information Technology, H-1083 Budapest, Hungary.', 'institution_ids': ['https://openalex.org/I31882830']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 8, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 9.371, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 363, 'citation_normalized_percentile': {'value': 0.999913, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': '324', 'issue': '5930', 'first_page': '1084', 'last_page': '1087'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10581', 'display_name': 'Neural dynamics and brain function', 'score': 0.9999, '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/T10581', 'display_name': 'Neural dynamics and brain function', 'score': 0.9999, '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': 0.9987, '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/T10985', 'display_name': 'Sleep and Wakefulness Research', 'score': 0.9986, '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/sleep', 'display_name': 'Sleep', 'score': 0.5563146}, {'id': 'https://openalex.org/keywords/human-brain', 'display_name': 'Human brain', 'score': 0.54638195}, {'id': 'https://openalex.org/keywords/sleep-spindle', 'display_name': 'Sleep spindle', 'score': 0.44548503}], 'concepts': [{'id': 'https://openalex.org/C522805319', 'wikidata': 'https://www.wikidata.org/wiki/Q179965', 'display_name': 'Electroencephalography', 'level': 2, 'score': 0.79309916}, {'id': 'https://openalex.org/C169760540', 'wikidata': 'https://www.wikidata.org/wiki/Q207011', 'display_name': 'Neuroscience', 'level': 1, 'score': 0.7589352}, {'id': 'https://openalex.org/C2775841894', 'wikidata': 'https://www.wikidata.org/wiki/Q4683692', 'display_name': 'Sleep (system call)', 'level': 2, 'score': 0.5563146}, {'id': 'https://openalex.org/C2777670902', 'wikidata': 'https://www.wikidata.org/wiki/Q492038', 'display_name': 'Human brain', 'level': 2, 'score': 0.54638195}, {'id': 'https://openalex.org/C48455012', 'wikidata': 'https://www.wikidata.org/wiki/Q2892593', 'display_name': 'Memory consolidation', 'level': 3, 'score': 0.4949445}, {'id': 'https://openalex.org/C143647101', 'wikidata': 'https://www.wikidata.org/wiki/Q2738302', 'display_name': 'Sleep spindle', 'level': 4, 'score': 0.44548503}, {'id': 'https://openalex.org/C15744967', 'wikidata': 'https://www.wikidata.org/wiki/Q9418', 'display_name': 'Psychology', 'level': 0, 'score': 0.3930048}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.37125927}, {'id': 'https://openalex.org/C110539466', 'wikidata': 'https://www.wikidata.org/wiki/Q3964845', 'display_name': 'Slow-wave sleep', 'level': 3, 'score': 0.3707385}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.1774616}, {'id': 'https://openalex.org/C2781161787', 'wikidata': 'https://www.wikidata.org/wiki/Q48360', 'display_name': 'Hippocampus', 'level': 2, 'score': 0.068636686}, {'id': 'https://openalex.org/C111919701', 'wikidata': 'https://www.wikidata.org/wiki/Q9135', 'display_name': 'Operating system', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D002540', 'descriptor_name': 'Cerebral Cortex', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D012894', 'descriptor_name': 'Sleep Stages', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': True}, {'descriptor_ui': 'D000293', 'descriptor_name': 'Adolescent', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D000328', 'descriptor_name': 'Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004569', 'descriptor_name': 'Electroencephalography', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D055724', 'descriptor_name': 'Electrophysiological Phenomena', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004827', 'descriptor_name': 'Epilepsy', 'qualifier_ui': 'Q000503', 'qualifier_name': 'physiopathology', 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008568', 'descriptor_name': 'Memory', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008875', 'descriptor_name': 'Middle Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D055815', 'descriptor_name': 'Young Adult', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 4, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1126/science.1169626', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S3880285', 'display_name': 'Science', 'issn_l': '0036-8075', 'issn': ['0036-8075', '1095-9203'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315823', 'host_organization_name': 'American Association for the Advancement of Science', 'host_organization_lineage': ['https://openalex.org/P4310315823'], 'host_organization_lineage_names': ['American Association for the Advancement of Science'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc3715654', 'pdf_url': 'https://europepmc.org/articles/pmc3715654?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'acceptedVersion', 'is_accepted': True, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3715654', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, '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': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'acceptedVersion', 'is_accepted': True, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/19461004', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, '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': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc3715654', 'pdf_url': 'https://europepmc.org/articles/pmc3715654?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'acceptedVersion', 'is_accepted': True, 'is_published': False}, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 26, 'referenced_works': ['https://openalex.org/W1536357320', 'https://openalex.org/W1895907979', 'https://openalex.org/W1971375081', 'https://openalex.org/W1985471830', 'https://openalex.org/W1994620696', 'https://openalex.org/W1999695968', 'https://openalex.org/W2004347871', 'https://openalex.org/W2007735192', 'https://openalex.org/W2017909130', 'https://openalex.org/W2024446380', 'https://openalex.org/W2028866298', 'https://openalex.org/W2046717384', 'https://openalex.org/W2056769976', 'https://openalex.org/W2073191776', 'https://openalex.org/W2081548183', 'https://openalex.org/W2082844680', 'https://openalex.org/W2086162146', 'https://openalex.org/W2090402907', 'https://openalex.org/W2093640201', 'https://openalex.org/W2097274016', 'https://openalex.org/W2105234237', 'https://openalex.org/W2114579562', 'https://openalex.org/W2245948004', 'https://openalex.org/W2466852614', 'https://openalex.org/W3022302886', 'https://openalex.org/W4253220769'], 'related_works': ['https://openalex.org/W4378834430', 'https://openalex.org/W3014223808', 'https://openalex.org/W2949898304', 'https://openalex.org/W2631501168', 'https://openalex.org/W2406467272', 'https://openalex.org/W2125579095', 'https://openalex.org/W2106935171', 'https://openalex.org/W2096046152', 'https://openalex.org/W2014175997', 'https://openalex.org/W1972852256'], 'abstract_inverted_index': {'Down': [0], 'But': [1], 'Not': [2], 'Out': [3], 'The': [4], 'K-complex,': [5], 'a': [6, 71, 79], 'defining': [7], 'characteristic': [8], 'of': [9, 19, 47, 82], 'slow': [10], 'wave': [11], 'sleep,': [12], 'is': [13, 27], 'the': [14, 20, 34, 44], 'largest': [15], 'spontaneously': [16], 'occurring': [17], 'component': [18], 'healthy': [21], 'human': [22, 35], 'electroencephalogram': [23], '(EEG)': [24], 'but': [25], 'little': [26], 'known': [28], 'about': [29], 'its': [30], 'physiological': [31], 'characteristics': [32], 'in': [33, 49, 73, 90], 'cortex.': [36], 'Cash': [37], 'et': [38], 'al.': [39], '(p.': [40], '1084': [41], ')': [42], 'investigated': [43], 'intracortical': [45, 61], 'origin': [46], 'K-complexes': [48], 'humans': [50], 'undergoing': [51], 'surgery': [52], 'for': [53], 'epileptic': [54], 'seizures.': [55], 'In': [56], 'simultaneous': [57], 'subdural': [58], 'EEG': [59], 'and': [60, 92, 98], 'multisite': [62], 'microelectrode': [63], 'recordings,': [64], 'K': [65], 'complexes': [66], 'represented': [67], 'cortical': [68, 83], 'downstates': [69], 'reflecting': [70], 'decrease': [72], 'neural': [74], 'firing.': [75], 'These': [76], 'down-states': [77], 'are': [78], 'fundamental': [80], 'mode': [81], 'operation': [84], 'that': [85], 'have': [86], 'been': [87], 'well': [88], 'studied': [89], 'animals': [91], 'may': [93], 'contribute': [94], 'to': [95], 'sleep': [96], 'preservation': [97], 'memory': [99], 'consolidation.': [100]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1969231641', 'counts_by_year': [{'year': 2024, 'cited_by_count': 18}, {'year': 2023, 'cited_by_count': 16}, {'year': 2022, 'cited_by_count': 25}, {'year': 2021, 'cited_by_count': 20}, {'year': 2020, 'cited_by_count': 21}, {'year': 2019, 'cited_by_count': 37}, {'year': 2018, 'cited_by_count': 27}, {'year': 2017, 'cited_by_count': 31}, {'year': 2016, 'cited_by_count': 13}, {'year': 2015, 'cited_by_count': 21}, {'year': 2014, 'cited_by_count': 28}, {'year': 2013, 'cited_by_count': 33}, {'year': 2012, 'cited_by_count': 24}], 'updated_date': '2024-12-22T19:18:25.583839', 'created_date': '2016-06-24'}