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Fredrik Nylén
Research qualifications:
Docent
Educational qualifications:
Recognised university teacher
0000-0003-3373-0934
Contact
E-mail
fredrik.nylen@umu.se
Phone
+46 90 786 73 15
,
+46 70 585 33 04
Works as
Affiliation
Associate professor
at
Department of Clinical Sciences
Section: Speech-language pathology
Location
Visiting address, view map
Publications
Publications
Research
Research
2025
eTWST: an extension to the timed water swallow test for increased dysphagia screening accuracy
Dysphagia (New York. Print)
, Springer Science+Business Media B.V. 2025, Vol. 40 : 801-810
Brage, Louise; Karlsson, Fredrik; Hägglund, Patricia; et al.
2025
Auditory-Perceptual Assessment of Gender Expression in Voice (PAGE-V): development and initial evaluation of a clinical rating protocol
Acta Logopaedica
, CLINTEC/Logopedi, Karolinska Institutet 2025, Vol. 2 : 98-120
Holmberg, Jenny; Södersten, Maria; Nylén, Fredrik
2025
An acoustic model of speech dysprosody in patients with Parkinson's disease
Frontiers in Human Neuroscience
, Frontiers Media S.A. 2025, Vol. 9
Nylén, Fredrik
2025
On acoustic voice quality index measurement reliability in digital health applications: a narrative review and empirical evaluation of speech sample length requirements
Frontiers in Digital Health
, Frontiers Media S.A. 2025, Vol. 7
Nylén, Fredrik
2025
The Visible Speech (VISP) platform: a secure infrastructure for the study of speech acts and spoken conversations
DHNB 2025: 9th Conference on Digital Humanities in the Nordic and Baltic Countries
Nylén, Fredrik; Skotare, Tomas; von Boer, Johan
2025
The visible speech platform: a platform for collaborative research efforts on spoken communication
Huminfrakonferens 2025 (HiC 2025), Stockholm, Sweden, 12-13 november, 2025.
Nylén, Fredrik; Skotare, Tomas; von Boer, Johan
2025
Digital voice analysis as a biomarker of acromegaly
Journal of Clinical Endocrinology and Metabolism
, Oxford University Press 2025, Vol. 110, (4) : 983-990
Vouzouneraki, Konstantina; Karlsson, Fredrik; Holmberg, Jenny; et al.
2024
Perception of femininity and masculinity in voices as rated by transgender and gender diverse people, professional speech and language pathologists, and cisgender naive listeners
Journal of Voice
Holmberg, Jenny; Södersten, Maria; Linander, Ida; et al.
2024
Reading aloud compared with positive expiratory pressure after abdominal surgery: a randomized controlled trial
International Journal of Surgery. Global Health
, Wolters Kluwer 2024, Vol. 7, (6)
Holmgren, Erik; Spyckerelle, Iris; Hultin, Magnus; et al.
2024
Acoustic cues to femininity and masculinity in spontaneous speech
Journal of the Acoustical Society of America
, American Institute of Physics (AIP) 2024, Vol. 155, (5) : 3090-3100
Nylén, Fredrik; Holmberg, Jenny; Södersten, Maria
2023
Exploring motives and perceived barriers for voice modification: the views of transgender and gender-diverse voice clients
Journal of Speech, Language and Hearing Research
, American Speech Language Hearing Association 2023, Vol. 66, (7) : 2246-2259
Holmberg, Jenny; Linander, Ida; Södersten, Maria; et al.
2023
The Timed Water Swallow Test (TWST): normative data on swallowing capacity for healthy people aged 60 years and older
International Journal of Speech-Language Pathology
, Taylor & Francis 2023, Vol. 25, (4) : 479-485
Hägglund, Patricia; Karlsson, Pernilla; Karlsson, Fredrik
2023
A within-subject comparison of face-to-face and telemedicine screening using the timed water swallow test (TWST) and the test of mastication and swallowing of solids (TOMASS)
Dysphagia (New York. Print)
, Springer 2023, Vol. 38 : 483-490
Karlsson, Fredrik; Lovric, Leo; Matthelié, Josephine; et al.
2023
Detection of subclinical motor speech deficits after presumed low-grade glioma surgery
Brain Sciences
, MDPI 2023, Vol. 13, (12)
Mirkoska, Vesna; Antonsson, Malin; Hartelius, Lena; et al.
2022
The Visible Speech platform: a research infrastructure for secure analysis of speech recordings
Stockholm: KTH Royal Institute of Technology 2022
Karlsson, Fredrik
2022
Vocal activity detection and speaker diarization in speech databases: a feasibility study
Stockholm: KTH Royal Institute of Technology 2022
Karlsson, Fredrik
2022
Do best practice recommendations align with current aphasia practices in the Swedish care context: a national survey
Aphasiology
, Routledge 2022, Vol. 36, (8) : 903-920
Persson, Klara Josefina; Bråndal, Rut; Karlsson, Fredrik; et al.
2021
The Test of Masticating and Swallowing Solids (TOMASS): Normative data for two crackers available in the Scandinavian and international markets
International Journal of Speech-Language Pathology
, Taylor & Francis 2021, Vol. 23, (3) : 329-337
Hägglund, Patricia; Blom, Sandra; Thodén, Patrik; et al.
2021
'superassp' and the need for a sparse signaltrack data format
Proceedings of Fonetik 2021
, Lund: Centre for Languages and Literature 2021 : 23-26
Karlsson, Fredrik
2021
On the Primary Influences of Age on Articulation and Phonation in Maximum Performance Tasks
Languages
, MDPI 2021, Vol. 6, (4)
Karlsson, Fredrik; Hartelius, Lena
2021
Speech function following deep brain stimulation of the caudal zona incerta: effects of habitual and high-amplitude stimulation
Journal of Speech, Language and Hearing Research
, American Speech-Language-Hearing Association 2021, Vol. 64, (6) : 2121-2133
Sandström, Linda; Schalling, Ellika; Karlsson, Fredrik; et al.
2020
Assessment of speech impairment in patients with Parkinson's disease from acoustic quantifications of oral diadochokinetic sequences
Journal of the Acoustical Society of America
, Acoustical Society of America (ASA) 2020, Vol. 147, (2) : 839-851
Karlsson, Fredrik; Schalling, Ellika; Laakso, Katja; et al.
2020
The effects of deep brain stimulation on speech intelligibility in persons with essential tremor
Journal of Speech, Language and Hearing Research
, American Speech-Language-Hearing Association 2020, Vol. 63, (2) : 456-471
Sandström, Linda; Blomstedt, Patric; Karlsson, Fredrik; et al.
2020
Speech following DBS for essential tremor: Effects of chronic and high-amplitude stimulation in the posterior subthalamic area
Twentieth Biennial Conference on Motor Speech: Motor Speech Disorders & Speech Motor Control, Feb 19 – 23, 2020, Santa Barbara, CA
Sandström, Linda; Schalling, Ellika; Karlsson, Fredrik; et al.
2019
How Well Does Diadochokinetic Task Performance Predict Articulatory Imprecision?: Differentiating Individuals with Parkinson's Disease from Control Subjects
Folia Phoniatrica et Logopaedica
, S. Karger 2019, Vol. 71, (5-6) : 251-260
Karlsson, Fredrik; Hartelius, Lena
2019
Voice Tremor Outcomes of Subthalamic Nucleus and Zona Incerta Deep Brain Stimulation in Patients With Parkinson Disease
Journal of Voice
, Elsevier 2019, Vol. 33, (4) : 545-549
Karlsson, Fredrik; Malinova, Elin; Olofsson, Katarina; et al.
2019
Voice Tremor Response to Deep Brain Stimulation in Relation to Electrode Location in the Posterior Subthalamic Area
World Neurosurgery: X
, Vol. 3 : 1-9
Sandström, Linda; Blomstedt, Patric; Karlsson, Fredrik
2019
Long-term effects of unilateral deep brain stimulation on voice tremor in patients with essential tremor
Parkinsonism & Related Disorders
, Elsevier 2019, Vol. 60 : 70-75
Sandström, Linda; Blomstedt, Patric; Karlsson, Fredrik
2018
How well does DDK task performance predict fluent speech articulation?
Nineteenth Biennial Conference on Motor Speech: Motor Speech Disorders & Speech Motor Control, Feb 22 – 25, 2018, Savannah, Georgia
Karlsson, Fredrik; Karlsson, Marcus; Hartelius, Lena
2018
Unilateral Left Deep Brain Stimulation of the Caudal Zona Incerta Is Equally Effective on Voice Tremor as Bilateral Stimulation: Evidence from 7 Patients with Essential Tremor
Stereotactic and Functional Neurosurgery
, Vol. 96, (3) : 157-161
Sandström, Linda; Karlsson, Fredrik; Blomstedt, Patric
2017
Kommunikations- och sväljstörningar genom hela livet: ett logopediskt ståndpunktsdokument
Umeå: Umeå universitet 2017
Lohmander, Anette; McAllister, Anita; Hansson, Kristina; et al.
2016
Voice Tremor in Patients With Essential Tremor: Effects of Deep Brain Stimulation of Caudal Zona Incerta
Journal of Voice
, Vol. 30, (2) : 228-233
Hägglund, Patricia; Sandström, Linda; Blomstedt, Patric; et al.
2015
Perceived articulatory precision in patients with Parkinson’s disease after deep brain stimulation of subthalamic nucleus and caudal zona incerta
Clinical Linguistics & Phonetics
, Vol. 29, (2) : 150-166
Eklund, Elisabeth; Qvist, Johanna; Sandström, Lena; et al.
2015
Speech intelligibility in Parkinson's disease patients with zona incerta deep brain stimulation
Brain and Behavior
, John Wiley & Sons 2015, Vol. 5, (10)
Sandström, Linda; Hägglund, Patricia; Johansson, Louise; et al.
2014
Articulatory closure proficiency in Parkinson's disease patients following deep brain stimulation of the subthalamic nucleus and caudal zona incerta.
Journal of Speech, Language and Hearing Research
, Vol. 57 : 1178-1190
Karlsson, Fredrik; Olofsson, Katarina; Blomstedt, Patric; et al.
2014
Word-level intelligibility after caudal zona incerta stimulation for Parkinson’s disease
Acta Neurologica Scandinavica
, Wiley-Blackwell 2014, Vol. 130, (1) : 27-33
Louise, Johansson; Sofia, Möller; Olofsson, Katarina; et al.
2013
Influence of speech task and utterance length on the measurement of pitch variability in the speech of Parkinson's disease patients after deep brain stimulation
17th International Congress of Parkinson's disease and movement disorders
Doorn, Jan van; Karlsson, Fredrik
2013
Pitch variability in patients with Parkinson’s disease: effects of deep brain stimulation of caudal zona incerta and subthalamic nucleus
Journal of Speech, Language and Hearing Research
, American Speech-Language-Hearing Association 2013, Vol. 56, (1) : 150-158
Karlsson, Fredrik; Olofsson, Katarina; Blomstedt, Patric; et al.
2013
Influence of speech task and utterance length on measurement of pitch variability in the speech of Parkinson's disease patients after deep brain stimulation
Movement Disorders
, John Wiley & Sons 2013, Vol. 28, (Supplement 1) : S448-
van Doorn, Janis; Karlsson, Fredrik
2012
Control of phonatory onset and offset in Parkinson patients following deep brain stimulation of the subthalamic nucleus and caudal Zona Incerta
Parkinsonism & Related Disorders
, Elsevier 2012, Vol. 18, (7) : 824-827
Karlsson, Fredrik; Blomstedt, Patric; Olofsson, Katarina; et al.
2012
Automatic acquisition of jitter and shimmer measurements across large sets of sustained vowel productions
Cork: 2012
Karlsson, Fredrik; Doorn, Jan van
2012
Applying the Vowel Formant Dispersion (VFD) method to the study of reduced or alterered vowel productions
14th Meeting of the International Clinical Phonetics and Linguistics Association, Cork, Ireland, 27-Jun-2012 - 30-Jun-2012
Karlsson, Fredrik; Doorn, Jan van
2012
Letter to the Editor
Journal of Voice
, Elsevier 2012, Vol. 26, (5)
Karlsson, Fredrik; Doorn, Jan van
2012
Vowel formant dispersion as a measure of articulation proficiency
Journal of the Acoustical Society of America
, Acoustical Society of America (ASA) 2012, Vol. 132, (4) : 2633-2641
Karlsson, Fredrik; Doorn, Jan van
2012
Treatment effects in voice onset time of plosives associated with deep brain stimulation of the subthalamic nucleus and the caudal zona incerta
Journal of medical speech-language pathology
, Delmar Cengage Learning 2012, Vol. 20, (4) : 65-69
Karlsson, Fredrik; Unger, Elin; Wahlgren, Sofia; et al.
2011
Deep brain stimulation of caudal zona incerta and subthalamic nucleus in patients with Parkinson’s disease: effects on diadochokinetic rate
Parkinson's Disease
, Hindawi Publishing Corporation 2011, Vol. 2011 : 605607-
Karlsson, Fredrik; Unger, Elin; Wahlgren, Sofia; et al.
2011
Deep brain stimulation of caudal zona incerta and subthalamic nucleus in patients with Parkinson’s disease: effects on voice intensity
Parkinson's Disease
, Hindawi Publishing Corporation 2011, Vol. 2011 : 658956-
Lundgren, Sofie; Saeys, Thomas; Karlsson, Fredrik; et al.
2010
Characterising the internal structure of learner intonation and its development over time
Proceedings of The 6th International Symposium on the Acquisition of Second Language Speech (Newsounds 2010)
Mennen, Ineke; Chen, Aujo; Karlsson, Fredrik
2008
Language learning through fuzzy ears: one cause of identity loss? Some preliminary thoughts from an experimental case study
Tidskrift för lärarutbildning och forskning / Journal of Research in Teacher Education.
, Vol. 15, (2) : 23-37
Czigler, Peter E.; Karlsson, Fredrik; Poussa, Patricia; et al.
2008
The acoustic manifestation of consonant gradation in Northern Sami
Journal of the Acoustical Society of America
, Vol. 123, (5 (part 2)) : 3885-
Karlsson, Fredrik; Sullivan, Kirk P H; Svonni, Michael; et al.
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N4 Research Group
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