{"id":"https://openalex.org/A5001852579","orcid":null,"observed_orcids":[],"display_name":"Ryuichiro Hayashi","raw_author_names":["R Hayashi","R. Hayashi","Ryuichiro HAYASHI","Ryuichiro Hayashi"],"full_name":"Ryuichiro HAYASHI","works_count":20,"cited_by_count":158,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":6,"i10_index":4},"ids":{"openalex":"https://openalex.org/A5001852579","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I146399215","ror":"https://ror.org/02956yf07","display_name":"University of Tsukuba","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I4210136279","ror":"https://ror.org/034s1fw96","display_name":"Yokohama Municipal Citizen's Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210136279"]},"years":[2023,2022,2020,2019,2018,2017,2015,2009,2004]},{"institution":{"id":"https://openalex.org/I4405253873","ror":"https://ror.org/015xqjq34","display_name":"Yokohama Brain and Spine Center","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4405253873"]},"years":[2006]}],"last_known_institutions":[{"id":"https://openalex.org/I146399215","ror":"https://ror.org/02956yf07","display_name":"University of Tsukuba","country_code":"JP","type":"education","lineage":["https://openalex.org/I146399215"]}],"topics":[{"id":"https://openalex.org/T12464","display_name":"Neurological Complications and Syndromes","count":4,"subfield":{"id":"https://openalex.org/subfields/2738","display_name":"Psychiatry and Mental health"},"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/T13397","display_name":"Hallucinations in medical conditions","count":4,"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/T13966","display_name":"Neurological and metabolic disorders","count":4,"subfield":{"id":"https://openalex.org/subfields/2712","display_name":"Endocrinology, Diabetes and Metabolism"},"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/T12212","display_name":"CNS Lymphoma Diagnosis and Treatment","count":3,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Neurology"},"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/T10542","display_name":"Vestibular and auditory disorders","count":2,"subfield":{"id":"https://openalex.org/subfields/2808","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13397","display_name":"Hallucinations in medical conditions","value":0.000101,"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/T12212","display_name":"CNS Lymphoma Diagnosis and Treatment","value":4.75e-05,"subfield":{"id":"https://openalex.org/subfields/2728","display_name":"Neurology"},"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/T12747","display_name":"Moyamoya disease diagnosis and treatment","value":4.39e-05,"subfield":{"id":"https://openalex.org/subfields/2745","display_name":"Rheumatology"},"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/T13966","display_name":"Neurological and metabolic disorders","value":3.69e-05,"subfield":{"id":"https://openalex.org/subfields/2712","display_name":"Endocrinology, Diabetes and Metabolism"},"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/T12464","display_name":"Neurological Complications and Syndromes","value":2.99e-05,"subfield":{"id":"https://openalex.org/subfields/2738","display_name":"Psychiatry and Mental health"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"x_concepts":[{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.9760000109672546},{"id":"142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","score":0.6067262291908264},{"id":"169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","score":0.5840953588485718},{"id":"15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","score":0.5713485479354858},{"id":"126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","score":0.49880000948905945}],"counts_by_year":[{"year":1998,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":4,"oa_works_count":2,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2015,"works_count":2,"oa_works_count":2,"cited_by_count":9},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":3},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":8},{"year":2019,"works_count":1,"oa_works_count":0,"cited_by_count":1},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":4},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":6},{"year":2023,"works_count":1,"oa_works_count":1,"cited_by_count":26},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":3}],"display_name_alternatives":["R Hayashi","R. Hayashi","Ryuichiro HAYASHI","Ryuichiro Hayashi"],"block_key":"r hayashi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5001852579","updated_date":"2026-11-02T12:28:04","created_date":"2016-06-24T00:00:00"}