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About me

Employed since November 2016 as a research assistant at the Division of Speech and Language Pathology, Department of Clinical Science, Intervention and Technology at the Karolinska Institutet (KI). Before this, Sofia did her post-doc at the same department, focussing on increased integration between courses on the Study Programme in Speech and Language Pathology


Earned her doctoral degree in April 2014 at the Royal Institute of Technology, Stockholm (KTH), with a thesis focusing on perceptual consequences of misarticulated speech in children – how these children’s speech are perceived by adult listeners and by the children themselves. Apart from her M.Sc degree in SLP (Lund, 2007), Sofia also has a M.Sc degree in computational linguistics (Uppsala, 2000).

Research description

The main focus in Sofia’s research is perception of pathological (or otherwise non-typical) speech – how speech is perceived by the speakers themselves, as well as by other listeners. This research involves perceptual instruments that – in contrast to traditional categorical measures – are sensitive to fine phonetic variation in listeners’ perception of non-typical speech.

An additional research focus are the communicative consequences of producing misarticulated speech, particularly with regards to intelligibility. This research involves listener evaluations performed in real-time, where listener reactions are registered during the continuous playback of connected speech. This method has been used for registering listener reactions to misarticulated speech in children, but also for the perceptual evaluation of speech recorded from speakers with acquired neurological conditions. By relating listener reactions to annotated events in the speech signal, this method could potentially address questions like ”which specific voice/speech problems contribute the most to unintelligibility?” or ”which specific voice/speech problems are most salient to naïve listeners?”. These instruments are used in the project Functional consequences of misarticulation in children's continuous speech.

Sofia also has a more broad interest in speech and language disorders in children, and how these may affect everyday life activities, such as when interacting with peers, family and others. Questions relating to this interest have mostly been investigated in student projects, under Sofia's supervision.

Teaching portfolio

Since 2016 responsible for various courses at the Study Program in Speech and Language Pathology; particularly involved in courses relating to children's typical and atypical speech and language acquisition. Supervises Master theses (30 credits, advanced level).

During 2014-2016 guest lecturer at the Department of linguistics and philology at Uppsala university.

Sofia’s post-doc project involved the pedagogical development of the Study Program in Speech and Language Pathology at the Karolinska Instiutet during 2014-2016. 


Subjective ratings of age-of-acquisition: exploring issues of validity and rater reliability
Wikse Barrow C, Nilsson Björkenstam K, Strömbergsson S
Journal of child language 2019;46(2):199-213

Towards an Integrated Curriculum in a Speech and Language Pathology Education Programme: Development and Constituents' Initial Responses
Strömbergsson S, Holm K, Lohmander A, Östberg P
Folia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP) 2019;():1-12

Perceptual Detection of Subtle Dysphonic Traits in Individuals with Cervical Spinal Cord Injury Using an Audience Response Systems Approach
Johansson K, Strömbergsson S, Robieux C, Mcallister A
Journal of voice : official journal of the Voice Foundation 2017;31(1):126.e7-126.e17

Acoustic and perceptual evaluation of category goodness of /t/ and /k/ in typical and misarticulated children's speech
Strömbergsson S, Salvi G, House D
The Journal of the Acoustical Society of America 2015;137(6):3422-35

Children's perception of their synthetically corrected speech production
Strombergsson S, Wengelin A, House D

Children's recognition of their own recorded voice: influence of age and phonological impairment
Strombergsson S


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