{"id":"https://openalex.org/A5016632119","orcid":"https://orcid.org/0000-0002-1763-1330","observed_orcids":["https://orcid.org/0000-0002-1763-1330"],"display_name":"Hirofumi Nagayama","raw_author_names":["Hirofumi NAGAYAMA","Hirofumi Nagayama","Nagayama, Hirofumi","\u30ca\u30ac\u30e4\u30de, \u30d2\u30ed\u30d5\u30df"],"full_name":"Nagayama, Hirofumi","works_count":45,"cited_by_count":283,"summary_stats":{"2yr_mean_citedness":1.8571428571428572,"h_index":10,"i10_index":10},"ids":{"openalex":"https://openalex.org/A5016632119","orcid":"https://orcid.org/0000-0002-1763-1330","observed_orcids":["https://orcid.org/0000-0002-1763-1330"]},"affiliations":[{"institution":{"id":"https://openalex.org/I149737473","ror":"https://ror.org/02cd6sx47","display_name":"Seirei Christopher University","country_code":"JP","type":"education","lineage":["https://openalex.org/I149737473"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I203951103","ror":"https://ror.org/02kn6nx58","display_name":"Keio University","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]},"years":[2017,2016,2015]},{"institution":{"id":"https://openalex.org/I4210129652","ror":"https://ror.org/03a2hf118","display_name":"Shinshu University Hospital","country_code":"JP","type":"healthcare","lineage":["https://openalex.org/I4210129652"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4210141715","ror":"https://ror.org/047khpn70","display_name":"Keio University Shonan Fujisawa","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210141715"]},"years":[2017]},{"institution":{"id":"https://openalex.org/I4405252899","ror":"https://ror.org/003bjsc39","display_name":"Japanese Association of Occupational Therapists","country_code":"JP","type":"nonprofit","lineage":["https://openalex.org/I4405252899"]},"years":[2026,2025,2024]},{"institution":{"id":"https://openalex.org/I64189623","ror":"https://ror.org/00f2txz25","display_name":"Kitasato University","country_code":"JP","type":"education","lineage":["https://openalex.org/I64189623"]},"years":[2013,2012]},{"institution":{"id":"https://openalex.org/I66005833","ror":"https://ror.org/00aygzx54","display_name":"Niigata University of Health and Welfare","country_code":"JP","type":"education","lineage":["https://openalex.org/I66005833"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I74042192","ror":"https://ror.org/03dhz6n86","display_name":"Kanagawa University of Human Services","country_code":"JP","type":"education","lineage":["https://openalex.org/I74042192"]},"years":[2026,2025,2024,2023,2021,2020,2019,2018,2017,2016,2015,2014]}],"last_known_institutions":[{"id":"https://openalex.org/I4405252899","ror":"https://ror.org/003bjsc39","display_name":"Japanese Association of Occupational Therapists","country_code":"JP","type":"nonprofit","lineage":["https://openalex.org/I4405252899"]},{"id":"https://openalex.org/I74042192","ror":"https://ror.org/03dhz6n86","display_name":"Kanagawa University of Human Services","country_code":"JP","type":"education","lineage":["https://openalex.org/I74042192"]}],"topics":[{"id":"https://openalex.org/T11759","display_name":"Occupational Therapy Practice and Research","count":25,"subfield":{"id":"https://openalex.org/subfields/3609","display_name":"Occupational Therapy"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T13986","display_name":"Medical Practices and Rehabilitation","count":18,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10510","display_name":"Stroke Rehabilitation and Recovery","count":16,"subfield":{"id":"https://openalex.org/subfields/2742","display_name":"Rehabilitation"},"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/T10804","display_name":"Health Systems, Economic Evaluations, Quality of Life","count":11,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10106","display_name":"Autism Spectrum Disorder Research","count":7,"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"}}],"topic_share":[{"id":"https://openalex.org/T11759","display_name":"Occupational Therapy Practice and Research","value":0.0001989,"subfield":{"id":"https://openalex.org/subfields/3609","display_name":"Occupational Therapy"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10510","display_name":"Stroke Rehabilitation and Recovery","value":4.86e-05,"subfield":{"id":"https://openalex.org/subfields/2742","display_name":"Rehabilitation"},"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/T13986","display_name":"Medical Practices and Rehabilitation","value":4.84e-05,"subfield":{"id":"https://openalex.org/subfields/3612","display_name":"Physical Therapy, Sports Therapy and Rehabilitation"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12608","display_name":"Spatial Neglect and Hemispheric Dysfunction","value":4.74e-05,"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/T13393","display_name":"Child Nutrition and Feeding Issues","value":3.89e-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":0.9844996929168701},{"id":"102190203","wikidata":"https://www.wikidata.org/wiki/Q380141","display_name":"Occupational therapy","score":0.8937106132507324},{"id":"2778818304","wikidata":"https://www.wikidata.org/wiki/Q1819478","display_name":"Rehabilitation","score":0.8733988404273987},{"id":"15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","score":0.7818999886512756},{"id":"1862650","wikidata":"https://www.wikidata.org/wiki/Q186005","display_name":"Physical therapy","score":0.6597261428833008}],"counts_by_year":[{"year":2012,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2013,"works_count":2,"oa_works_count":1,"cited_by_count":1},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":3},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":3},{"year":2016,"works_count":5,"oa_works_count":4,"cited_by_count":9},{"year":2017,"works_count":4,"oa_works_count":2,"cited_by_count":13},{"year":2018,"works_count":1,"oa_works_count":1,"cited_by_count":28},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":16},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":16},{"year":2021,"works_count":2,"oa_works_count":1,"cited_by_count":20},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":29},{"year":2023,"works_count":4,"oa_works_count":4,"cited_by_count":23},{"year":2024,"works_count":7,"oa_works_count":6,"cited_by_count":28},{"year":2025,"works_count":5,"oa_works_count":2,"cited_by_count":40},{"year":2026,"works_count":9,"oa_works_count":8,"cited_by_count":54}],"display_name_alternatives":["Hirofumi NAGAYAMA","Hirofumi Nagayama","Nagayama, Hirofumi","\u30ca\u30ac\u30e4\u30de, \u30d2\u30ed\u30d5\u30df"],"block_key":"h nagayama","works_api_url":"https://api.openalex.org/works?filter=author.id:A5016632119","awards_count":4,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5016632119","updated_date":"2026-11-11T13:02:13","created_date":"2016-06-24T00:00:00"}