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Bjørn Gjessing Rosendahl

Doctoral Research Fellow - Department of Special Needs Education
Image of Bjørn Gjessing Rosendahl
Visiting address Sem Sælands vei 7 Helga Engs hus 0371 Oslo
Postal address Postboks 1140 Blindern 0318 Oslo
Other affiliations Faculty of Educational Sciences (Student)

Interests

  • The auditory system, auditive processing and perception
  • Hearing and stroke
  • Hearing measurements
  • Acoustics

Projects

Hearing ability after stroke

In this project, we wish to study the hearing ability of people who have suffered a stroke. Hearing function is not routinely screened after stroke and research in this area is limited. But there have been studies that show that some individuals who have had a stroke experience reduced ability to process sound. This type of hearing loss is not necessarily detected by the most common hearing tests used today.

The project has two parts. In part one, we study pure-tone audiometry results collected in the Trøndelag Health Study (HUNT) and examine whether stroke patients have poorer hearing thresholds than people who have not had a stroke. In part two, we wish to measure the hearing of individuals who have had a stroke to see if the results differ from people who have not had a stroke. In the test battery, we include a binaural speech-in-noise test for headphones, where three-word utterances are presented in speech-weighted noise. This measurement is not commonly used in standard hearing assessments but is a test that tells us more about how individuals hear speech in the presence of interfering noise. If it turns out that more stroke patients have poorer hearing function after a stroke than is currently recognized, methods could be considered to identify these individuals.

Background

2023 – : Doctoral research fellow – Department of special needs education, University of Oslo

2020 – : Research collaboration with SINTEF in the project “I Hear You!”

2020 – 2023: Audiologist at Lovisenberg Diaconal Hospital in Oslo and Ishavsklinikken in Tromsø

2017 – 2020: Bachelor’s degree in audiology, Norwegian University of Science and Technology in Trondheim

2011 – 2013: Tonmeister (master’s degree), The Royal Academy of Music in Copenhagen

2007 – 2010: Bachelor’s degree in Music, Sound Engineering, Rhythmic Music Conservatory in Copenhagen

Publications

  • Rosendahl, Bjørn Gjessing; Tronstad, Tron Vedul & Øygarden, Jon (2025). Development and evaluation of the Digit Triplet Test in Swahili language. South African Journal of Communication Disorders. ISSN 0379-8046. 72(1). doi: 10.4102/sajcd.v72i1.1090. Full text in Research Archive
  • Tronstad, Tron Vedul; Gjessing, Bjørn; Ørland, Ingvild; Øderud, Tone; Mnyanyi, Cosmas B. F. & Myovela, Isaack [Show all 7 contributors for this article] (2022). A case study of interventions to facilitate learning for pupils with hearing impairment in Tanzania. African Journal of Disability. ISSN 2223-9170. 11. doi: 10.4102/ajod.v11i0.974. Full text in Research Archive

View all works in NVA

  • Rosendahl, Bjørn Gjessing; Andenes, Styrk & Øderud, Tone (2024). Sound and hearing loss. Full text in Research Archive
  • Rosendahl, Bjørn Gjessing & Tronstad, Tron Vedul (2024). Reverberation and background noise in three classrooms in the Kilimanjaro region. Full text in Research Archive
  • Rosendahl, Bjørn Gjessing & Tronstad, Tron Vedul (2024). Reverberation and background noise in three classrooms in the Kilimanjaro region. Full text in Research Archive
  • Rosendahl, Bjørn Gjessing; Andenes, Styrk & Øderud, Tone (2024). Sound and hearing loss. Full text in Research Archive
  • Gjessing, Bjørn; Glesnes, Tov Bjørnar; Ørland, Ingvild & Øygarden, Jon (2020). Hørselsomsorg i Tanzania Hva kan tilbys skolebarn med hørselstap når høreapparat er utenfor rekkevidde og klasseromakustikken er utfordrende? NTNU report. Full text in Research Archive

View all works in NVA

Published Oct. 2, 2023 8:10 AM - Last modified Apr. 10, 2026 1:08 PM