PUBLICATIONS

Pulse Oximetry: The Working Principle, Signal Formation, and Applications

Published
11. October 2022 in Advances in Experimental Medicine and Biology

Authors
Timo Lepppänen, Samu Kainulainen, Henri Korkalainen, Saara Sillanmäki, Antti Kulkas, Juha Töyräs, Sami Nikkonen

Cite 
Leppänen, T., Kainulainen, S., Korkalainen, H., Sillanmäki, S., Kulkas, A., Töyräs, J., & Nikkonen, S. (2022). Pulse Oximetry: The Working Principle, Signal Formation, and Applications. In Advances in the Diagnosis and Treatment of Sleep Apnea (pp. 205-218). Springer, Cham.

API: an Alternative View for Sleep Stability Analysis based on Automatic Detection of the A-Phases from the Cyclic Alternating Pattern

Published
13. September 2022 in Sleep

Authors
Fábio Mendonça, Sheikh Shanawaz Mostafa, Ankit Gupta, Erna Sif Arnardottir, Timo Leppänen, Fernando Morgado-Dias and Antonio G Ravelo-García

Cite 
Mendonça, F., Mostafa, S. S., Gupta, A., Arnardottir, E. S., Leppänen, T., Morgado-Dias, F., & Ravelo-García, A. G. (2022). A-phase index: an alternative view for sleep stability analysis based on automatic detection of the A-phases from the cyclic alternating pattern. Sleep.

Multi-Level Classification of Driver Drowsiness by Simultaneous Analysis of ECG and Respiration Signals Using Deep Neural Networks

Published
26 August 2022 in International Journal of Environmental Research and Public Health

Authors
Serajeddin Ebrahimian, Ali Nahvi, Masoumeh Tashakori, Hamed Salmanzadeh, Omid Mohseni and Timo Leppänen

Cite 
Ebrahimian, S., Nahvi, A., Tashakori, M., Salmanzadeh, H., Mohseni, O., & Leppänen, T. (2022). Multi-Level Classification of Driver Drowsiness by Simultaneous Analysis of ECG and Respiration Signals Using Deep Neural Networks. International journal of environmental research and public health, 19(17), 10736.

Towards a Digital Sleep Diary Standard

Published
10. August 2022 in P
roceeding of 28th Americas Conference on Information Systems (AMCIS)

Authors
Lisa Schmitz, Bjarki Freyr Sveinbjarnarson, Guðni Nathan Gunnarsson, Ólafur Andri Davíðsson, Þór Breki Davíðsson, Erna Sif Arnardóttir, María Óskarsdóttir and Anna Sigríður Íslind

Cite 
Schmitz, L., Sveinbjarnarson, B. F., Gunnarsson, G. N, Davíðsson, Ó. A., Davíðsson, Þ. B., Arnardóttir, E. S., Óskarsdóttir, M. & Islind, A. S. (2022). Towards a Digital Sleep Diary Standard. In proceeding of 28th Americas Conference on Information Systems (AMCIS). Minneapolis, USA.

The Sleep Revolution: the concept and objectives

Published
30. June 2022 in Journal of Sleep Research

Authors
Erna S. Arnardottir, Anna Sigridur Islind, María Óskarsdóttir, Kristín A. Ólafsdóttir, Elias August, Lára Jónasdóttir, Harald Hrubos-Strøm, Jose M. Saavedra, Ludger Grote, Jan Hedner, Sveinbjörn Höskuldsson, Jón Skírnir Ágústsson, Kamilla Rún Jóhannsdóttir, Walter T. McNicholas, Dirk Pevernagie, Reijo Sund and Juha Töyräs

Cite 
Arnardottir, E. S., Islind, A. S., Óskarsdóttir, M., Ólafsdóttir, K. A., August, E., Jónasdóttir, L., … & Sleep Revolution. (2022). The Sleep Revolution project: the concept and objectives. Journal of Sleep Research, 31(4), e13630.

Self-Applied Electrode Set Provides a Clinically Feasible Solution Enabling EEG Recording in Home Sleep Apnea Testing

Published
26. May 2022 in IEEE Access

Authors
Laura Kalevo, Tomi Miettinen, Akseli Leino, Susanna Westeren-Punnonen, Erna Sif Arnardottir, Johanna Sahlman, Esa Mervaala, Juha Töyräs, Timo Leppänen, Sami Myllymaa, Katja Myllymaa

Cite 
Kalevo, L., Miettinen, T., Leino, A., Westeren-Punnonen, S., Sahlman, J., Mervaala, E., … & Myllymaa, K. (2022). Self-Applied Electrode Set Provides a Clinically Feasible Solution Enabling EEG Recording in Home Sleep Apnea Testing. IEEE Access, 10, 60633-60642.

Novel Oxygen Desaturation Parameters and Subclinical Myocardial Injury in Obstructive Sleep Apnea: Data from the Akershus Sleep Apnea Project

Published
24. May in BMC Pulmonary Medicine

Authors
Saara Sillanmäki, Jukka A. Lipponen, Henri Korkalainen, Antti Kulkas, Timo Leppänen, Juha Töyräs, Brett Duce, Aaron Suni, Samu Kainulainen

Cite 
Sillanmäki, S., Lipponen, J. A., Korkalainen, H., Kulkas, A., Leppänen, T., Nikkonen, S., … & Kainulainen, S. (2022). QTc prolongation is associated with severe desaturations in stroke patients with sleep apnea. BMC Pulmonary Medicine, 22(1), 1-10.

Towards Sleep Study Automation: Detection Evaluation of Respiratory-Related Events.

Published
16. March 2022 in IEEE Journal of Biomedical and Health Informatics

Authors
Michal Borsky, Marta Serwatko, Erna S. Arnardottir and Jacky Mallett

Cite 
Borsky, M., Serwatko, M., Arnardottir, E. S., & Mallett, J. (2022). Toward Sleep Study Automation: Detection Evaluation of Respiratory-Related Events. IEEE Journal of Biomedical and Health Informatics, 26(7), 3418-3426.

Machine Learning and Wearable Technology in Sleep Medicine

Published
2. March 2022 in Frontiers in Digital Health

Authors
Timo Leppänen, Carolina Varon, Massimiliano de Zambotti and Sami Myllymaa

Cite 
Leppänen, T., Varon, C., de Zambotti, M., & Myllymaa, S. (2022). Machine Learning and Wearable Technology in Sleep Medicine. Frontiers in Digital Health, 4.

Deep learning enables accurate automatic sleep staging based on ambulatory forehead EEG

Published
25. February 2022 in IEEE Access

Authors
Akseli Leino, Henri Korkalainen, Laura Kalevo, Sami Nikkonen, Samu Kainulainen, Alexander Ryan, Brett Duce, Kirsi Sipilä, Jari Ahlberg, Johanna Sahlman, Tomi Miettinen, Susanna Westeren-Punnonen, Esa Mervaala, Juha Töyräs, Sami Myllymaa, Timo Leppänen, Katja Myllymaa

Cite 
Leino, A., Korkalainen, H., Kalevo, L., Nikkonen, S., Kainulainen, S., Ryan, A., … & Myllymaa, K. (2022). Deep learning enables accurate automatic sleep staging based on ambulatory forehead EEG. IEEE Access, 10, 26554-26566.

Importance of Getting Enough Sleep and Daily Activity Data to Assess Variability: Longitudinal Observational Study

Published
22. February 2022 in JMIR Formative Research

Authors
María Óskarsdóttir, Anna Sigríður Íslind, Elias August, Erna Sif Arnardóttir, François Patou, Anja M Maier

Cite 
Óskarsdóttir M., Islind A., August E., Arnardóttir E., Patou F., Maier A. (2022). Importance of Getting Enough Sleep and Daily Activity Data to Assess Variability: Longitudinal Observational Study JMIR Form Res 2022;6(2):e31807

Technical Performance of Textile-Based Dry Forehead Electrodes Compared With Medical-Grade Overnight Home Sleep Recordings

Published
12. November 2021 in IEEE Access

Authors
Matias Rusanen, Samu Kainulainen, Henri Korkalainen, Timo Leppänen, Juha Töyräs, Erna Sif Arnardóttir, Sami Myllymaa

Cite 
Rusanen, M., Kainulainen, S., Korkalainen, H., Kalevo, L., Myllymaa, K., Leppänen, T., … & Myllymaa, S. (2021). Technical Performance of Textile-Based Dry Forehead Electrodes Compared With Medical-Grade Overnight Home Sleep Recordings. IEEE Access, 9, 157902-157915.

Objective Measures of Cognitive Performance in Sleep Disorder Research

Published
6. October 2021 in Sleep Medicine Clinics

Authors
Kamilla Rún Jóhannsdóttir, Dimitri Ferretti, Birta Sóley Árnadóttir and María Kristín Jónsdóttir

Cite 
Jóhannsdóttir, K. R., Ferretti, D., Árnadóttir, B. S., & Jónsdóttir, M. K. (2021). Objective Measures of Cognitive Performance in Sleep Disorder Research. Measuring Sleep, An Issue of Sleep Medicine Clinics, E-Book16(4), 575-593.

An In-Laboratory Comparison of FocusBand EEG Device and Textile Electrodes Against a Medical-Grade System and Wet Gel Electrodes

Published
15 September 2021 in IEEE Journal of Biomedical and Health Informatics

Authors
Matias Rusanen, Sami Myllymaa, Laura Kalevo, Katja Myllymaa, Juha Töyräs, Timo Leppänen and Samu Kainulainen

Cite 

Rusanen, M., Myllymaa, S., Kalevo, L., Myllymaa, K., Töyräs, J., Leppänen, T., & Kainulainen, S. (2021). An in-laboratory comparison of FocusBand EEG device and textile electrodes against a medical-grade system and wet gel electrodes. IEEE Access, 9, 132580-132591.

 

The Role of Patient-Reported Outcomes in Sleep Measurements

Published
11. September 2021 
in Sleep Medicine Clinics

Authors
Dirk Pevernagie, Fré A. Bauters and Katrien Hertegonne

Cite 
Pevernagie, D., Bauters, F. A., Hertegonne K. (2021). The Role of Patient-Reported Outcomes in Sleep Measurements. Sleep Medicine Clinics, Volume 16, Issue 4, Pages 595-606.

Self-Applied Home Sleep Recordings:
The Future of Sleep Medicine

Published
8. September 2021 
in Sleep Medicine Clinics

Authors
Henri Korkalainen, Sami Nikkonen, Samu Kainulainen, Amit Krishna Dwivedi, Sami Myllymaa, Timo Leppänen and Juha Töyräs

Cite 
Arnardottir, E. S., Korkalainen, H., Nikkonen, S., Kainulainen, S., Dwivedi, A. K., Myllymaa, S., … & Töyräs, J. (2021). Preface: Improving Sleep Measurements for the Future xiii.

The Future of Sleep Measurements:
A Review and Perspective

Published
6. July 2021 
in Sleep Medicine Clinics

Authors
Erna Sif Arnardóttir, Anna Sigríður Íslind and María Óskarsdóttir

Cite
Arnardottir, E. S., Islind, A. S., & Óskarsdóttir, M. (2021). The Future of Sleep Measurements: A Review and Perspective. Sleep Medicine Clinics16(3), 447-464.

Future Treatment of Sleep Disorders: Syndromic Approach Versus Management of Treatable Traits?

Published
25. June 2021 
in Sleep Medicine Clinics

Author
Dirk Pevernagie

Cite
Pevernagie, D. (2021). Future Treatment of Sleep Disorders: Syndromic Approach Versus Management of Treatable Traits? Sleep Medicine Clinics, Volume 16,  Issue 3, Pages 465-473.