{"id":"https://openalex.org/A5065582828","orcid":"https://orcid.org/0000-0003-4123-5917","observed_orcids":["https://orcid.org/0000-0003-4123-5917"],"display_name":"Tommi V\u00e4yrynen","raw_author_names":["T V\u00e4yrynen","T. Vayrynen","T. V\u00e4yrynen","Tommi V\u00e4yrynen"],"full_name":"V\u00e4yrynen, Tommi","works_count":23,"cited_by_count":306,"summary_stats":{"2yr_mean_citedness":5.0,"h_index":8,"i10_index":6},"ids":{"openalex":"https://openalex.org/A5065582828","orcid":"https://orcid.org/0000-0003-4123-5917","observed_orcids":["https://orcid.org/0000-0003-4123-5917"]},"affiliations":[{"institution":{"id":"https://openalex.org/I2799272722","ror":"https://ror.org/045ney286","display_name":"Oulu University Hospital","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I2799272722"]},"years":[2026,2025,2024,2023,2022,2020,1979]},{"institution":{"id":"https://openalex.org/I98381234","ror":"https://ror.org/03yj89h83","display_name":"University of Oulu","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]},"years":[2026,2025,2024,2023,2022,2020]}],"last_known_institutions":[{"id":"https://openalex.org/I2799272722","ror":"https://ror.org/045ney286","display_name":"Oulu University Hospital","country_code":"FI","type":"healthcare","lineage":["https://openalex.org/I2799272722"]},{"id":"https://openalex.org/I98381234","ror":"https://ror.org/03yj89h83","display_name":"University of Oulu","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"topics":[{"id":"https://openalex.org/T10378","display_name":"Advanced MRI Techniques and Applications","count":16,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T11406","display_name":"Cerebrospinal fluid and hydrocephalus","count":14,"subfield":{"id":"https://openalex.org/subfields/2804","display_name":"Cellular and Molecular 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","count":11,"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/T10241","display_name":"Functional Brain Connectivity Studies","count":5,"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/T10009","display_name":"Dementia and Cognitive Impairment Research","count":2,"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"}}],"topic_share":[{"id":"https://openalex.org/T11406","display_name":"Cerebrospinal fluid and hydrocephalus","value":0.0001209,"subfield":{"id":"https://openalex.org/subfields/2804","display_name":"Cellular and Molecular 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","value":6.94e-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/T10378","display_name":"Advanced MRI Techniques and Applications","value":3.85e-05,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"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/T10241","display_name":"Functional Brain Connectivity Studies","value":3.09e-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/T11872","display_name":"Barrier Structure and Function Studies","value":1.53e-05,"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"}}],"x_concepts":[{"id":"522805319","wikidata":"https://www.wikidata.org/wiki/Q179965","display_name":"Electroencephalography","score":0.7959259152412415},{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.7930417656898499},{"id":"2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","score":0.754311203956604},{"id":"169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","score":0.6858000159263611},{"id":"15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","score":0.46362045407295227}],"counts_by_year":[{"year":1979,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2022,"works_count":2,"oa_works_count":2,"cited_by_count":9},{"year":2023,"works_count":3,"oa_works_count":3,"cited_by_count":29},{"year":2024,"works_count":3,"oa_works_count":1,"cited_by_count":38},{"year":2025,"works_count":6,"oa_works_count":4,"cited_by_count":106},{"year":2026,"works_count":6,"oa_works_count":5,"cited_by_count":122}],"display_name_alternatives":["T V\u00e4yrynen","T. Vayrynen","T. V\u00e4yrynen","Tommi V\u00e4yrynen"],"block_key":"t vayrynen","works_api_url":"https://api.openalex.org/works?filter=author.id:A5065582828","updated_date":"2026-11-03T12:34:24","created_date":"2016-06-24T00:00:00"}
